With a week left in the dual meet seasons for some and just two left for others, the weekly leader board is beginning to have a familiar feel to it. MCSL holds 32 top times, leading NVSL (23) and CSL (4). PWSL was off this week.

Read quick analysis of this week’s top times list and see who is the best in the area in their event in Week 4:

8&unders

How many times will Rockville‘s Adriano Arioti finished within a three-quarters of a second of the all-area mark in the 25-meter free? (So far: four weeks, four times.) Or within a second of the 25 backstroke record? (Again: four weeks, four times.) If there is any question who the best 8&under in the league is, end that discussion. It’s Arioti. (He also topped backstroke for the fourth straight week.)

Overlee’s Evan Ingraham also topped the list in breaststroke for a third straight week.

Keira Gutierrez of Chesterbrook and Maggie O’Shaughnessy of Highlands returned to the top of the rankings in backstroke and breaststroke. Although Gutierez was far sort of her area-leading time of 19.46, O’Shaughnessy blasted the first sub-21 performance in the league in more than a decade. She’s within a second of Amy Rymiszewski’s legendary NVSL record (also an all-area mark) set in 1985 and is the top rated girl in butterfly as well.

Making her first appearance on the leader board is Little Falls‘ Hailey Hammond, who posted the top time in free, although that season best from the 7-year-old only ranks her seventh in the area.

(In red, we have noted the time in seconds from the current all-area record and bolded times within a second of the all-area record.)

9-10s

Germantown’s Konnor Chen remains within a second of two very, very fast records in the age group. He’s just off a Brett Feyerick record in backstroke and a Johnny Bradshaw record in butterfly. In fly, he’s .12 seconds shy of Grant Goddard‘s MCSL record too.

Arlington Knight’s of Columbus’ McGrath Marsh again comes up twice in the weekly top times list, dropping freestyle and adding backstroke. He’s been a regular this summer for the Holy Mackerels.

Damascus’ Carly Sebring moved even closer to Cassidy Bayer’s all-area mark in the 25 butterfly and sits four-hundredths shy of Lila Vera’s 2006 MCSL record in the event. She also holds the top time in IM.

11-12s

Brett Feyerick ticked within a half-second of the freestyle record with a blazing sub-27-second swim, his second of the summer. His backstroke was a bit off and this week’s time is the first time he’s over a second off the all-area mark, which he lowered earlier in the summer.

He keep Tallyho atop all but one event in boys’ rankings (probably because he didn’t swim it). Fair Oaks’ Anthony Grimm bumped Tallyho swimmer Ben Long Zuo from the breaststroke to prevent the weekly sweep.

Phoebe Bacon, also of Tallyho, led the girls with two rankings.

13-14s

A couple of barrier-breaking swims from Tilden Woods’ Timothy Ellet, Mansion House’s Andrew Revers, Hunter Mill’s Katie Mack and Manorgate’s Alexa Cuomo.

Ellett is the first of the season under 33 seconds in breaststroke and under 1:03 in IM, while Revers and Mack are the first to go sub-26 and sub-27 in freestyle. Mack’s swim also puts her within striking distance of Janet Hu’s NVSL record.

But the swim of the week comes from Cuomo, who leapfrogged sub-30 and went straight to sub-29 with a huge 28.84 in the girls’ 50 butterfly that comes within a second of Cassidy Bayer‘s all-area record. It’s the fourth fastest swim in the area this season, including 15-18s, and ranks her fourth all-time in the age group, including behind Natalya Ares MCSL record of 28.70.

*Time performed in yards

15-18s

Ryan Baker‘s freestyle time ranks second fastest of the season, and would have beaten Andrew Seliskar in their head-to-head matchup by a hundredth of a second. The pair have the top four times this season. He also posted a season best in butterfly, joining Palisades’ Grant Goddard with two top times.

Brady Almand of Overlee also had an impressive showing in breaststroke, posting the second sub-30.5 swim of the season. He still trails Ben Gorski’s area-best 30.25.

In the girls, Caroline McTaggart was absent, allowing several of the top times to go to newcomers.

For much of the summer in the Montgomery County Swim League, two swimmers have stood apart in their age group and beyond it.

They also happen to swim at the same summer pool. And for the same year-round club. And they’re just 12 years old.

Brett Feyerick and Phoebe Bacon entered Tuesday evening’s MCSL Coaches’ Long Course Invitational ranked first in both their events with no expectations for anything less than gold. The pair of Tallyho swimmers had set six league records between them in the opening weeks of the season, and adding long-course records seemed not just likely but inevitable.

But Feyerick and Bacon’s performances at the 41st running of the mid-summer invitational weren’t just fast for Maryland’s premier swim league. They rank fast by area and national standards.

Feyerick set meet records in the 11-12 boys’ 100-meter freestyle and 100 backstroke, while Bacon crushed a pair of girls’ marks in the 100 backstroke and 100 butterfly. Their performances made up nearly half the new records set Tuesday at Rockville Swim and Fitness Center, which also saw Chevy Chase Rec. senior Caroline McTaggart annihilate a 25-year-old mark by more than a second and a half.

Paring down his event lineup to two events for the long-course all-star meet, Feyerick opted out of butterfly despite having the league record in short-course meters.

Instead, he attacked freestyle and added a league record in a third stroke. Feyerick crushed the field by nearly five seconds while bettering Sanjay Wijesekera‘s 2012 mark of 59.05 by .16 seconds. His time of 58.89 seconds ranks 10th nationally among 14-year-olds this season and was more than a half-second improvement for the Nation’s Capital product.

Freestyle was just a warmup.

Feyerick returned shortly after for the 100 backstroke event, which he entered as the top seed based on his league record 50 backstroke time. In one of the most impressive swims of the night, Feyerick registered a time of 1 minute 4.76 seconds that lowered Matthew Gibson’s eight-year-old record by 1.36 seconds.

With the touch, Feyerick also broke Gibson’s Potomac Valley open record and sits .22 seconds off the resident mark. He also improved his own ranking by a spot with the new lifetime best, moving from fourth to third in the nation for his age this season and up 36th all-time among 11-12s.

A heat later, Bacon leaped into the water, pulled herself up on the backstroke bar and took off for the girls’ 100 backstroke. A little more than a minute later, Bacon claimed her first record of the evening and Tallyho’s third.

Bacon finished more than eight second ahead of second and under both the 11-12 and 13-14 meet records in the event with a time of 1:05.04. The NCAP swimmer lowered the 11-12 record by more than four seconds, and while not a record, she was 1.43 under the mark in her future age group as well. The time is the fastest in the nation by a 12-year-old, clearing the next best time this season by 1.53 seconds and was a 2.3-second improvement on her own best.

It also beat Janet Hu‘s Potomac Valley open record by one and a half seconds.

With just under a year left in qualifying, Bacon needs only drop 1.65 seconds in order to qualify for next summer’s U.S. Olympic trials, which would place her amongst the youngest swimmers in Omaha. (Notably, former freestyle world record holder Sippy Woodhead and reigning Olympic butterfly champion Dana Vollmer both qualified as 12-year-olds.)

Returning after the break, Bacon also crushed the mark in the 100 butterfly with a time of 1:06.34, lopping 1.63 seconds off the record held by Heather Denman since 2003. Glenwood‘s Molly Benson and Inverness Forest‘s Julie Fan also went under the old mark, finishing second-third in times of 1:07.49 and 1:07.88.

That time ranks Bacon eight nationally — her third top 10 ranking this season.

Swimming in her final Coaches’ Invite, McTaggart capped the eight-record night by downing a historic record in the 15-18 age group.

McTaggart, a future UCLA Bruin, demolished the 100 butterfly record by 1.7 seconds with a time of 1:00.87. The record, previously held by Pamela Minthorn, had stood since 1990. McTaggart’s time was under the 2016 Olympic trials cut, but wasn’t as fast as her season best from March’s junior nationals.

McTaggart had already broken the 50 butterfly record earlier in the season, and has come within a few hundredths of Katie Ledecky‘s league record in the 100 free.

Also breaking a record in the senior age group was Brennan Novak of Potomac Glen. The soon-to-be Harvard swimmer lowered the record in the 15-18 boys’ 200 freestyle. He touched in 1:53.64 to eclipse a 2011 mark held by Matt Thomas, a 2012 Olympic trials qualifier, by .21 seconds. It was just shy of his lifetime best by less than half a second.

In total, nine records were set.

Opening the night’s records was Catherine Belyakov of North Creek added the girls’ 12&under 200 individual medley record. She finished in 2:31.24 to beat Lauren James’s six-year mark by 1.34 seconds.

Moments later, John Clado of Rockville, who clipped a seven-year-old mark in the 13-14 boys’ 200 individual medley.

He touched in 2:13.77 to eclipse the record held by former national team member Jonathan Ekstrom since 2008 by two-tenths of a second. That time ranks eight nationally.

Carly Sebring of Damascus broke the 9-10 girls’ 50 butterfly record set two years ago by Claire Ryland, finishing first in 32.47 and shaving three-tenths of a second off the old mark.

Nearly getting in on the record-setting night was a trio of 10&unders.

Rockville’s Adriano Ariotti nearly broke the meet record in the 8&under boys’ 50 free and 50 butterfly, finishing in times of 32.97 and 37.42, respectively — a combined miss of .79 seconds.

Konnor Chen of Germantown posted a 35.51 while winning the 9-10 boys’ 50 backstroke, less than four-tenths off the 14-year-old mark held by Sean Stewart, a 2008 Olympic trials qualifier.

In the 9-10 girls’ 50 breast, Joyce Wu of King Farm touched within a second of a four-year-old mark with a time of 38.75, nearly two seconds clear of second.

In the 13-14 age group, Tanterra’s Isabelle Clark claimed the girls’ 100 breaststroke, touching .77 seconds shy of Sarah Haase‘s 2008 record of 1:14.15 — 11th among her age group nationally.

Swimmers are limited to two events and only the top eight in the league based on dual-meet times– barring scratches — compete.

For much of the season, Damascus‘ Carly Sebring, 10, has inched closer and closer to Montgomery County’s record in the 9-10 girls’ 25-meter butterfly.

In Week 1, she was just more than a quarter-second off the mark that had stood since 2006. Last week, she was four-hundredths of a second as the weather that has plagued the area’s swim leagues this summer abated for a rare weekend.

Saturday during the Dolphins dual meet against Robin Hood, Sebring dipped under.

The Nation’s Capital Swim Club trainee registered a sizzling 14.77 to clip two-tenths off the previous mark that had been held by Stonebridge’s Lila Vera for nearly a decade. It also put her .03 second back of Cassidy Bayer‘s all-area butterfly mark set during the 2010 NVSL season.

Sebring broke the league’s long-course record in the 50 butterfly last week at the Coaches’ Long Course Invitational, so Saturday’s performance isn’t unexpected. She ranks as the third-fastest area performer in history behind Bayer and Gabrielle Standfield of Theresa Banks in the Prince-Mont Swim League.

Sebring also holds the top time in the area in breaststroke (18.80), but remains 1.38 seconds off Rachel Danegger‘s MCSL and all-area mark of 17.42.

Sebring’s record was the seventh individual mark set during the 2015 MCSL season.

Adriano Arioti, Brett Feyerick and John Shebat have distinguished themselves throughout the summer against their age groups. But their latest performances in the pool put them in a category of their own.

Arioti, Feyerick and Shebat swept the top time of the week in each of their respective events. Three for Arioti in 8&unders, four for Feyerick in 11-12s, and four for Shebat in 15-18s.

The former two swimmers represent the MCSL, which grabbed 32 top times this week, followed by 16 from the NVSL. Shebat competes in the CSL, which had nine. The PWSL had one this week as it resumed after its July 4 break.

Team-by-team: Rockville had nine top times, Tallyho six and Stonegate four — all MCSL teams.

Read quick analysis of this week’s top times list and see who is the best in the area in their event in Week 4:

8&unders

Rockville‘s Adriano Arioti posted his fifth consecutive weekly leading time in the boys’ 25-meter freestyle. It was also his third time hitting 15.72 mark, consistency that is almost unheard of in swimming and especially from an 8-year-old. He again topped back and fly as well.

However, a new leader took over in breast as Cyrus Beauvais scorched the second sub-21-second swim of the season in setting the Colonial Swim League record.

In a week that saw the four fastest times in the league all posted, Emma Redman of Sleepy Holly Rec. topped the list while dipping within a second of girls’ free all-area record with a blistering 16.38. Riverbend’s Alyssa Webb, Dunn Loring’s Katherine Shatokhin and CountrySide’s Micaela Perezous all posted sub-17 splits to round out the top four. Perezous added her name to the leader board in butterfly.

(In red, we have noted the time in seconds from the current all-area record and bolded times within a second of the all-area record.)

9-10s

Carly Sebring blasted a huge sub-15-second swim in butterfly to grab the MCSL record and move herself within a tenth of a second of the all-area mark. She also posted season bests in breaststroke and IM, further distancing herself from the rest of her age group in the latter.

Courtney Watts got back under 35 seconds in backstroke, again challenging Janet Hu‘s all-area and NVSL mark, and Nina Allen posted the fastest swim of the season in free with a 30.69 that places her within a second of Giulia Baroldi‘s all-area and MCSL record. The time ranks her top 10 all-time.

In the boys events, the same names dominate with a little shifting.

11-12s

Brett Feyerick has gone under the 27-second barrier in three of the last four weeks in freestyle, and his latest performance ranks as his best yet. With the blistering 26.70-second split, Feyerick sits just two-hundredths of a second off Jason Blanken’s MCSL record set in 1998. (Blanken is currently a coach at River Falls.) He also is a timer error’s distance off the all-area mark.

Feyerick also remains eerily consistent in butterfly and IM, his entire season’s time falling within half a second of each other in fly and .61 of each other in IM.

On the girls’ side, Anna Keating and Dora Wu are setting up what could be the best 12&under race at the NVSL All-Star meet. The pair own all eight of the top times in the area this season, switching atop the leader board in four-straight weeks. Keating’s latest is the fastest yet.

Erika Chen and Phoebe Bacon had two rankings apiece to lead the girls, and Tallyho hauls in six total for the week.

13-14s

A week after Mansion House’s Andrew Revers broke the 26-second barrier for the first time this season, everyone is doing it this week. Revers still leads but is closely followed by Cedarbrook’s Nathan Wratney (25.80) and Chesterbrook’s Thomas Outlaw (25.97). Diego Cruzado of Highlands was just off at 26.06.

Alexa Cuomo of Manorgat continued her run, dipping under 31 seconds in backstroke for the fastest time of the season. She and Hunter Mill’s Katie Mack own all four top times in the event.

Cassandra Sanidad also got under a big barrier, splitting a sub-35 for the first time in her career. It ranks her as the seventh fastest area performer in the past five years.

15-18s

This week’s senior age group list is all about Franklin Farm’s John Shebat. He tops the list four events with three times within a second of the all-area marks (and we’re pretty sure if he swam 100s he’d be close in those too) after breaking four CSL records this past weekend.

Among the girls, a bit of shuffling but fairly expected names across the board.

(As a side note, the Outlaw brothers from Chesterbrook own the top times in 13-14 and 15-18 free.)

As Caroline McTaggart stepped to the edge of the pool at Lake Marion for her first individual event Saturday morning, dark clouds began to roll across the sky. The weather threatened meets across Montgomery County, but at the Division I championship, it put history in jeopardy.

But just before the sky opened up and forced swimmers, officials and parents beneath rain coats and umbrellas, the whistle sounded, McTaggart crouched, gripped the lip of the pool and took off.

Less than a minute later, McTaggart stood in the water waiting for the rest of the field to join her at the finish, a smiling beaming from beneath goggles and swim cap. The Chevy Chase Rec. Association senior claimed first in the 15-18 girls’ 100-meter freestyle in a time of 55.15 seconds, breaking the MCSL record by six-tenths of a second.

The record was just a year old, set midseason at a dual meet by four-time world champion Katie Ledecky in her lone appearance in the league following her gold medal performance at the 2012 London Olympics.

McTaggart’s record was one of eight records broken Saturday morning in Maryland’s premier league, as team’s battled drizzly-turned-thundering-turned-muggy weather during divisionals week. Germantown’s Konnor Chen set another for the Division B winners, and Tallyho‘s Phoebe Bacon and Brett Feyerick provided the other six in the same meet, helping the Foxes to a runner-up finish in the division.

Chen ended a tie between Palisades’ Grant Goddard (2007) and Tallyho’s Ben Long Zuo (2013) in the record books, besting the record in the 9-10 boys’ 25 butterfly with a time of 14.94, two-hundredths under the old mark.

Bacon broke her own records in the 11-12 girls’ 100 individual medley, 50 backstroke and 50 butterfly. Feyerick, also age 12, lowered his own record in the boys’ 50 back, broke a 17-year-old record in freestyle and added the individual medley mark as well.

[Phoebe Bacon, Brett Feyerick break another set of records in Week 2]

As good as the Tallyo duo’s day was, however, few swimmers ever have a shot at challenging an Olympian’s record let alone break it.

McTaggart didn’t just break Ledecky’s record. She smashed it.

McTaggart had been inching toward this swim for sometime, having come within three-hundredths of a second earlier in the season on the same day she broke the league’s 50 butterfly record. Including Saturday’s swim, McTaggart owns eight of the top 10 performances in the event. The UCLA-bound graduate broke the record first in 2012, when she downed a 24-year-old mark with a 58.02.

Now only Ed Moses’s legendary record in the 15-18 boys’ 50 breaststroke stands, having survived another attempt Saturday by Andrew Seliskar. Moses set the record in 1998, two years shy of his three-medal performance at the 2000 Sydney Olympics.

For Bacon, she opened her day by lowering her record in the 11-12 girls’ IM event by more than a second and a half. She finished in 1:07.52. In the event prior, Feyerick clipped a four-year mark held by Rockville’s Devin Truong for a new record of 1:04.91. It will also stand as the all-area record.

Feyerick’s second event, though, was by far his most impressive. The 12-year-old Nation’s Capital-Georgetown Prep swimmer has shown his ability in backstroke, butterfly and IM throughout the year, but in downing the league mark in free, he put himself in a special category.

Feyerick broke a record originally set in 1998 by Jason Blanken, a current RMSC coach and the head coach at River Falls, with a time of 26.45, hacking .23 seconds off. He fell a hundredth of a second short of the all-area mark set by NVSL’s Cyrus Hashemi in 2007.

Feyerick and Bacon lowered their backstroke records from earlier in the season, too. Feyerick touched in 28.84 and Bacon finished in 29.91, making her the first area 11-12 girl under 30 seconds. Both times are all-area marks.

Bacon set the final record of the day with a 29.72 performance in butterfly. It was her first time under 30 seconds in that event as well, but falls short of the all-area mark by more than a second.

With Saturday’s records, Bacon and Feyerick have posted 12 record-setting swims this summer in short-course meters to go along with four long-course records.

Update:

The league’s all-star meet is Sunday at Rockville Swim and Fitness Center.

Without question, the latest round of meets was the fastest of the season. Maybe it was the concurrence with club swimming’s 14&under championships, or perhaps the junior and senior championship versions coming up this weekend, but regardless of the reason, it was a record-setting and rankings-topping week across the area.

Three all-area records went down, all in the 11-12 age group, all to Tallyho swimmers, while 15 others were challenged.

MCSL continued its reign over the weekly leader board with 35 total top times. NVSL trailed with 13, followed by CSL (8) and PWSL (2). From individual teams, Tallyho led with nine, all from one age group, while Rockville and McLean tied for second with five apiece.

Read quick analysis of this week’s top times list and see who is the best in the area in their event in Week 4:

8&unders

With all-star and divisional meets approaching, five records in the youngest age category are in danger. That includes two girls from the NVSL who are within striking distance of the league mark in 25-meter freestyle.

Rockville‘s Adriano Arioti, who has six swims and the top six times in freestyle, is again within half a second of the boys’ mark, while Cyrus Beauvais of Fort Meyer dipped within a second of what is one of the fastest marks in the all-area books, the 25 breaststroke.

(In red, we have noted the time in seconds from the current all-area record and bolded times within a second of the all-area record.)

9-10s

Season-best times in the area from Tuckahoe’s J.T. Ewing, Arlington Knights of Columbus’s McGrath Marsh and Rockville’s Konnor Chen in the boys’ events, as well as Damascus’s Carly Sebring in the girls’.

Sebring claimed top spots in the weekly leader board in every event she swam at divisionals.

11-12s

It would be hard to imagine group from one team dominating an age group the way Tallyho has the 11-12s this year.

Brett Feyerick and Phoebe Bacon set three all-area records this week while shattering six total MCSL records, and Ben Long Zuo chipped in the week’s best time in breaststroke to ensure a sweep of the boys’ events and nine of 10 overall.

In the girls’ breaststroke, McLean’s Dora Wu took back the weekly spot from Vienna Aquatic’s Anna Keating, and the duo, through five weeks of NVSL action, own the top 10 performances of the season between them. It could be among the best races at the league’s all-star meet on Aug. 1.

13-14s

Stonegate may have won the division crown, Rockville claimed the championship title, but Tilden Woods’ Timothy Ellett owned the 13-14 boys’ age group Saturday. Three of his fours swims resulted in weekly top times, all within a second and a half of the all-area marks, including a blistering sub-1:02 in the individual medley.

Alexa Cuomo of Manorgate had a landmark Saturday in the Colonial Swim League, and helped provide a sweep of the girls’ event by the second-tier northern Virginia league along with Chase Club’s Julia Moser.

15-18s

Caroline McTaggart tore down MCSL records in the 100 free and butterfly, the former a record held by Olympian Katie Ledecky, and nearly got the IM record as well. Sunday’s individual all-stars is her last chance at bettering her own records or breaking any others — but with senior champs conflicting, these records are likely to stand as is.

In an exciting dual meet showdown with Chesterbrook’s Chris Outlaw, Overlee’s Ryan Baker tied the season’s fastest time in the 50 free with a sub-24 blast. Somerset’s Gavin Springer tied Grant Goddard‘s season-best time in the 100 free.

But the biggest swim in the boys’ events came from Andrew Seliskar, who nearly broke Olympian Ed Moses’s 1998 breaststroke record with a stunning 28.91 touch. He fell a tenth of a second shy, and like McTaggart, is likely out of this weekend’s summer meet. But maybe swimming fans will get lucky.

(As a side note, the Outlaw brothers from Chesterbrook own the top times in 13-14 and 15-18 free.)

The fastest swimmers in Montgomery County will converge upon Rockville Swim and Fitness Center for the county’s individual all-star meet Sunday. And per usual, records are on watch entering the weekend’s meet.

[Psych sheet: 2015 MCSL Individual All-Star]

Among the favorites to claim county title’s are record breakers Phoebe Bacon and Brett Feyerick, who have coursed through the league’s records this season with 12 total between the Tallyho duo.

Who will join them? Can this summer’s meet match last year’s seven league records? With many older swimmers opting for Potomac Valley’s senior championships over summer league meets, who will walk away with a 15-18 title?

Here are some of the best storylines to keep an eye on at this year’s meet:

1. Bacon shoots for a ‘Grand Slam’

Tallyho’s Phoebe Bacon will swim freestyle and breaststroke Sunday, the only two 11-12 events in which she doesn’t already hold the league records.

Her first event, the 50-meter freestyle, should be the easier of the two records to capture. Bacon comes in with a seed time of 28.26; Caroline McTaggart’s 2009 record time of 27.88 isn’t out of reach for the Tallyho superstar.

Bacon’s big challenge will come in the 50 breast as she looks to eclipse current Stanford all-American Sarah Haase’s record of 35.07. Bacon hasn’t even approached the record yet this season with a season-best 37.18, but Bacon is an accomplished IMer and that requires a quick breaststroke.

[Caroline McTaggart leads record-setting day in MCSL]

There isn’t a Grand Slam in summer league swimming, but breaking and holding every event record in your age group has to be about as close as a swimmer can get. Bacon has a chance at it.

Bacon won two events last summer as an 11-year-old — the 100 IM and 50 butterfly — in record-breaking time.

Her teammate, Brett Feyerick who has also had six record-breaking swims this summer for the Foxes, will swim free and back Sunday. He has the league records in both, broken most recently in the divisional meet.

2. Two records, one swim

Consistency is rare in young swimmers, but Rockville’s Adriano Ariotti‘s range in the 8&under 25 freestyle stretches across only .34 seconds . . . for the entire season.

Ariotti’s best of 15.38 puts him in good position to take Timothy Ellet‘s MCSL record of 15.16 from 2009. But don’t be surprised if Ariotti goes further, though. Just .1 seconds below the league mark is the all-area record of 15.06, which was set by Johnny Bradshaw in 2012 in the Dominion Country Club League.

Ariotti has the top six all-area times this season in six swims in the event, and lucky number seven could put him over the top.

The 8-year-old is also seeded first in the 25 butterfly with a 16.95, more than a second ahead of second. The all-area and league mark held by Darius Truong is likely too far out of reach for Ariotti at 16.07, however.

3. Big waves, big race

It could be tough to see the winner of the 15-18 boys’ 100 IM Sunday without being right near the action. A dome of white water may cover the top three finishers as they approach the wall together. And we mean together.

Potomac Glen senior Brennan Novak, Upper County’s Brandon Cu and Old Georgetown’s Alex Vissering are seeded within .16 seconds of each other, an absolute toss-up margin for the senior boys’ age group.

Novak is the savvy veteran and a racer, but Cu and Vissering are dangerous in breaststroke. In the end, like so many races Sunday, the winner will be whoever can take the race out fast and times that final lunge to the wall just right. Good luck, boys.

It will be Cu’s second close race of the day, as he enters .02 seconds behind Potomac’s Adrian Lin, and just in front of Cedarbrook’s Andrew Omenitsch, with a time of 52.94.

Other barnburners to keep an eye on:

• 8&under girls’ 25 free: Three-hundredths of a second separate Manchester Farm’s Ruqayyah Abouraya, Stonegate’s Sophia Diaz and Palisades’s Anna Knight, and first through 15th are separated by less than a second.
• 13-14 boys’ 50 free: Stonebridge’s Jeffrey Qin, Potomac Woods’s Aaron Lazar and Cedarbrook’s Nathan Wratney enter with seed times of 25.62, 25.68 and 25.80. Not a lot of room for error.
• 9-10 girls’ 25 back: Nina Allen is the only swimmer seeded under 17 seconds, but Robin Hood’s Riley Langan and Potomac Woods’s Erin Gemmell are both within two-tenths of the Stonegate swimmer.

4. Ellett with a shot

When Eli Fouts rocked a 1:00.89 in the 13-14 boys’ 100 individual medley at last year’s all-stars, it was presumed that the record might last awhile. Tilden Woods’ Timothy Ellet is of a different opinion, however.

Ellett, 14, enters as the top seed in the league with a 1:01.41, just over half a second off the league record. The time ranks fourth all-time in the area and third all-time in the league, trailing Fouts and Jack Conger. The all-area mark stands at 1:00.29, set in 2011 by Andrew Seliskar.

5. Events with potential

Beyond the senior age groups, it’s a rarity to see too many swimmers from the bottom of the age group on top. But the 13-14 girls’ age group has just that — in three different events.

In 100 individual medley, top-seeded Talia Moss from River Falls, No. 3 seed Madeline Mara from Lakelands and No.5 seed Moshelle Borjigin from Germantown are all 13. The rest of the 12, age 14.

East Gate’s Maya Fischer tops the entries in 50 butterfly, followed by five 14-year-olds, then Amanda Liu of Bethesda and Manchester Farm’s Sarah Elliott in seventh and eight.

Liu is entered at No. 1 in 50 backstroke, followed by three 14-year-olds, then three more 13-year-olds — Abbey Rose of Tanterra, Potomac Woods’s Megan Sharkey and Stonegate’s Shannon Lamb.

The age group’s freestyle and breaststroke event also has some underaged talent as well, with Fischer, Sharkey, Rock Creek’s Tatum Zupnik and Tenterra’s Amanda Wenhold seeded second and fourth through fifth, respectively, in freestyle, and Mara, Potomac Woods’s Caroline Howley and Elliott seeded third, fourth and fifth, respectively, in breast.

6. Vissering’s last stand

Carsten Vissering is among the few top-tier swimmers in the 15-18 age group to enter the all-star meet, along with Novak and Lin.

The Old Georgetown swimmer is back from a stint with the U.S. national “C” team at the World University Games, where he finaled in the 50 breaststroke for the United States. He’s back for a stretch before heading to San Antonio for U.S. nationals and then off to sunny Southern California for college. Novak, a Harvard-bound graduate, and Lin, a Yale recruit, will also join the college swimming ranks this fall.

Vissering said at last year’s meet that he thought it would be his last all-stars, but he’s back again for the 100 breaststroke and 50 butterfly, neither of which he enters as the top seed.

Vissering set the league record in the 100 breaststroke last year with a sizzling 1:00.74, taking down a 2008 mark held by Eric Friedland.

Can he get under again?

If he does, he’ll have to get back top seed Coby Zucker, a Columbia recruit who has swam well this season, including a league-topping 1:04.95. Vissering’s top time this season is 1:05.01.

In fly, he’s the third seed with a 26.89, trailing leaders Tom Benson (26.27) and Kevin Berry (26.32) in what should be another thrilling finish.

7. Two more for the books? Maybe.

If you can stick around through breaststroke, you might be treated to a couple of late-breaking records in the butterfly events.

Damascus’s Carly Sebring broke the league record in the 9-10 girls’ butterfly in Week 5, dipping under 15 seconds for the first time. She now sits within .03 seconds of Cassidy Bayer’s all-area mark of 14.74.

Just before Sebring’s swim, Germantown’s Konnor Chen also can take aim at the all area mark in the boys’ butterfly.

He is seeded with a 14.94, which he posted in divisionals for a new league record. Johnny Bradshaw’s all-area mark sits at 14.36.

Both swimmers had their season-bests in the last two weeks, and even though Sebring missed during divisionals, she was still a blistering 15.02. She’s hit within three-tenths of Bayer’s record three times this season.

Phoebe Bacon jumped around behind Lane 4 adjusting her cap nervously as the heat before hers finished. When the swimmers cleared the pool, the 12-year-old placed a towel on the edge and smoothed it out, making sure it was perfect.

The final race of the day for the Tallyho swimmer was one of her weaker events, the 50-meter breaststroke.

“It’s a big testament to Phoebe’s character,” Tallyho Coach Dory Halbe said. “I think she really wanted to come out here and show people that she could shine in the other events.”

The breaststroke event was one of two in which she did not already hold the league record for the 11-12 girls’ age group. The other was the 50 freestyle.

Sunday at the MCSL’s individual all-star meet, she chose to swim both events.

Bacon took down her seventh record of the season in freestyle, eclipsing a four-year-old record held by Caroline McTaggart with a time of 27.63 seconds. Tia Thomas, who finished second, also went under the old record of 27.88 in a time of 27.81.

Bacon fell short in breaststroke, but managed to claim a second event title despite suffering an injury at the finish of the freestyle event.

At the touch in free, Bacon said her left elbow popped out and back in to place. She needed help out of the pool and quickly received medical attention.

“She came over and said, ‘I can’t really do this,’ and made a breaststroke pull motion, ‘but I feel fine,’ ” Halbe said.

Without any risk of further injury, Bacon opted to compete in breaststroke and fought against pain to edge Mill Creek Towne’s Riley Powell by .01 seconds, finishing in a time of 36.53.

“I didn’t even see the other girl,” Bacon said. “I was just racing.”

Bacon’s teammate and counterpart in the boys’ events, Brett Feyerick, swam to two first place finishes and bettered his own league records in both events.

Feyerick swam just under the all-area mark in freestyle with a time of 26.38 and edged out Cyrus Hashemi’s (NVSL, Vienna Aquatic) previous record of 26.44.

“I saw the time before, but it wasn’t in my head,” Feyerick said. “I just did my best and got it.”

Shortly after, Feyerick jumped in for his best event, the 50 backstroke. He dropped his MCSL and all-area record by .37 seconds down to a 28.47.

Bacon and Feyerick now hold every 11-12 league record except for those in breaststroke between them, although Rockville’s Chris Ma scared Feyerick’s butterfly record Sunday, touching in a time of 29.18, just .03 off of the record. Ma also won the 100 IM in 1:08.20.

Ben Long Zuo claimed the 11-12 boys’ 50 breaststroke for the fifth Tallyho win in the age group of the day, finishing in 35.64.

In the senior age group, Carsten Vissering concluded his storied career with Old Georgetown with a historic finish to in the 15-18 boys’ 100 breaststroke.

Vissering, a soon-to-be Southern Cal freshman, became the first swimmer in MCSL history to break the one-minute barrier in the 100 breaststroke. He commanded the race from the beginning and touched in a time of 59.56, smashing his previous best time and league record of 1:00.74 from last summer’s meet.

Vissering finished second in the 50 butterfly, edged by Glenwood’s Tom Benson, 25.88 to 25.91.

Brennan Novak, who has represented Potomac Glen since he was seven years old, finished his summer swimming career with his first two victories in his final all-star meet.

Novak outtouched Potomac’s Adrian Lin in the 100 free, 51.50 to 51.72, respectively. The two raced in the long course version of the same event at the Potomac Valley’s senior championship meet on Thursday where Lin was the first of the two to touch. But Novak got the win at Rockville Swim Center when the two were side by side.

“I couldn’t see him on the last 25 because I was breathing to the other side,” said Novak, a Harvard-bound graduate. “I just tried to get on the wall first.”

The pair have history racing each other, Novak for RMSC and Gonzaga, Lin for Nation’s Capital and Georgetown Prep. They will continue to build that history as they enter the ranks of Ivy League swimmers in the fall: Novak at Harvard, Lin at Yale.

Novak also won the 100 IM with a come-from-behind finish over Old Georgetown’s Alex Vissering. He split a 13.6 on the freestyle leg, according to a coaches watch, to claw back from a body-length deficit after breaststroke and pull ahead and win in a time of 59.57, nearly a two-second drop from his best time.

“I knew that if I could keep it close on the breast, I’d be able to finish strong,” Novak said. “It was my last 25 in the MCSL.”

In the non-senior events, Amanda Liu of Bethesda was the lone swimmer who will return in their age group next year to win an event. Liu, 13, won the 13-14 girls’ 50 backstroke in 31.55, followed by six 14-year-olds.

Other top finishers:

Rockville’s Adriano Ariotti claimed the 8&under boys’ 25 free (15.39) and 25 butterfly (17.26). … Carly Sebring of Damascus won the 9-10 girls’ 50 free (29.99) and 25 butterfly (14.81), nearly matching her own league mark in the latter. … Daleview’s Sammie Grant placed first in the 13-14 girls’ 50 free (27.34) and 100 IM (1:07.60). … Tilden Woods’s Timmy Ellett was a double winner in the 13-14 boys’ 50 back (28.48) and 100 IM (1:01.35), a half-second shy of the record. … Germantown’s Konnor Chen took home titles in the 9-10 boys’ 25 back (16.70) and 25 butterfly (14.97) — three hundredths of a second shy of his league record in fly. … Dylan Gribble of Manchester Farm won the 15-18 girls’ 100 IM (1:06.67) and 100 breast (1:14.98).

The first and only accurate top times list of the season as the area’s two largest league’s both swim the individual medley events and both limit their swimmers to two events.

Five all-area marks were set on a weekend that saw league records tumble across the region.

In its last week of competition, MCSL continued to lead the leader board with 29 total top times. NVSL leapt forward with the addition of the IM events to its meets with 20 total, followed by the CSL (8) and PWSL (1).

Read quick analysis of this week’s top times list and see who is the best in the area in their event in Week 4:

8&unders

Rockville‘s Adriano Arioti completed as close to a perfect season as possible with seven swims in the 25-meter free and seven weekly top times. He also finished with the top six best times in the 25 butterfly and 25 backstroke.

But with the MCSL season now in the books, the most exciting races in the age group came out of the NVSL and CSl, with Sleepy Hollow Rec.’s Emma Redman and Countryside’s Micaela Perezous dipping within a second of the all-area marks in free and fly. Redman especially intrigues not just because of her proximity to the record, but because of what record it is. Amy Rymiszewski’s free record has stood since 1985 and is the oldest girls’ record in the league.

(In red, we have noted the time in seconds from the current all-area record and bolded times within a second of the all-area record.)

9-10s

Germantown’s Konnor Chen, Rockville’s Ethan Fu and Damascus’s Carly Sebring all challenged but ultimately fell short of the all-area marks in their respective events at the MCSL all-star meet. Chen finished with six of the top six times this season in the 25 back, Fu with three of the top seven times in breast and Sebring with all four of the season-best times in fly and the fastest of the year in free.

Entering the all-star weekend in Northern Virginia, Highlands’s Courtney Watts has a shot at Janet Hu’s 2006 record that stands as both the NVSL and all-area mark.

11-12s

Despite the limitation of events in Montgomery County, Maryland’s premier league still swept the 11-12 boys’ weekly top times, including two all-area marks from Tallyho’s Brett Feyerick.

The league nearly grabbed up all the girls’ events too, but a Vienna Aquatic duo broke up the sweep — including Anna Keating‘s stunning 35-low in breaststroke, which comes dangerously close to the shared record that was set first in 1995 and matched in 2003.

13-14s

Hunter Mill’s Katie Mack and Mansion House’s Andrew Revers posted times in the sprint free events that should perk up the ears of their future and current high school coaches. Revers’s time ranks in the top five in the league all-time, while Mack sits at No. 3 on the all-time performers list.

But free wasn’t even Mack’s best performance of the weekend, as she tore down Cassidy Bayer’s NVSL and all-area mark in the 100 IM. The time ranks Mack second all-time across all age groups as well, behind Hu’s record but ahead of MCSL record holder Katie Ledecky (1:04.53) and former NVSL record holder Ashley Danner (1:03.74).

15-18s

The senior boys were on point this week, leaving their mark before heading off to join the collegiate ranks.

The performance of the week came from Carsten Vissering of Old Georgetown, who crushed his own 100 breaststroke record with a stunning sub-1 minute performance. Vissering, a soon-to-be Southern Cal freshman, has taken a record that has only been broken by three swimmers since Olympic gold medalist Mike Barrowman’s 1987 record of 1:04.98. Before Vissering, the record stood at 1:01.03 from 2008 and 1:03.60 from 2002.

Franklin Farm’s John Shebat also broke an all-area mark, taking down the 50 backstroke in smashing a two-year mark held by Philip Hu. It was the third all-area mark set this season in the 15-18 age group, adding to Caroline McTaggart’s record in the girls’ 100 free. Ben Gorski nearly got Ed Moses’s 1998 record in breast, falling just shy of the mark.