Ayden Tan Breaks 11-12 National Record in 100 IM: Michael Andrew’s Last 11-12 Yards Mark

2025 Swim to Win Summer Plush Edition

  • June 14-15, 2025
  • Rohnert Park, California
  • Short Course Yards (25 yards)
  • Full Meet Results

While most of the serious swimming in June is done in long course meters, at a more local level, yards swimming continues to go strong – and last weekend, Ayden Tan took advantage to set a new 11-12 National Age Group Record in the 100 yard IM.

Tan, 12, of San Ramon Valley Aquatics, swam five new lifetime bests as part of his record-breaking effort. That included a 53.28 in the 100 IM. That took almost six-tenths of a second off Michael Andrew‘s old National Age Group Record of 53.86 that was set more than 13 years ago in April 2012.

That was the last 11-12 yards record for Andrew, who was one of the most prolific National Age Group Record setters in American history. He still holds one 11-12 record in long course, the 50 fly.

Top 10 All-Time, Boys’ 11-12 100 IM

  1. 53.28 – Ayden Tan, San Ramon Valley Aquatics, June 2025
  2. 53.86 – Michael Andrew, Unattached, April 2012
  3. 53.95 – Josh Zuchowski, Flood Aquatics Swim Team, April 2017
  4. 54.23 – Austin Chu, CSP Tideriders, February 2023
  5. 54.58 – Jeremy Kelly, Nitro Swimming, January 2019
  6. 54.66 – Jarrett Payne, Springfield Family YMCA, March 2019
  7. 54.81 – Ethan Dang, King Aquatic Club, December 2014
  8. 54.84 – Thomas Heilman, Piedmont Family YMCA, January 2020
  9. 55.16 – Jason Zhao, Blue Ash YMCA Swim Team, December 2019
  10. 55.21 – Jerry Chu, Santa Clara Swim Club, April 2018

Tan’s previous best time in the event was a 54.55 that he swam in April.

Tan also holds the 10 & Under records in the 100 IM (1:00.89) and 200 IM (2:10.12) in yards. In long course, he holds 10 & Under records in the 50 backstroke (30.82), 100 breaststroke (1:18.56), and 200 IM (2:27.38).

Tan doesn’t age up until September.

He also moved to #2 all-time in age group history in three other events: the 200 IM, where he’s .83 seconds behind Josh Zuchowski‘s record; the 100 fly, where he’s .74 seconds behind Thomas Heilman‘s record; and the 50 fly, where he’s .14 seconds behind Heilman’s record.

Other Results for Tan at the meet (all wins) and 11-12 all-time rankings:

  • 100 back – 52.18
  • 100 breast – 1:00.99 (-3.37s) – 17th all-time
  • 50 fly – 23.01 (-.97s) – 2nd all-time
  • 100 fly – 51.56 (-.37s) – 2nd all-time
  • 200 IM – 1:56.58 (-2.73s) – 2nd all-time

Other Meet Results

  • 14-year-old Nathan Kondapalli won the 13 & over competition in the 50 free (22.54), 100 free (48.60), 200 free (1:48.98), 100 breast (58.89), and 200 breast (2:10.60). The latter three of those swims were all best times.
  • Kyra Tan, Ayden’s younger sister, won all eight races she entered at the meet in the 9-10 age group, including best times in the 100 free (57.79) and 50 fly (27.31). They are part of a talented group of swimming siblings along with Mikayla, who did not race at this meet, and Cal swimmer Zachary Tan.

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saltie
22 hours ago

yall remember back in the day when MA was actually relevant and not just a meme? what a time

NewSRVA
1 day ago

So glad for this kid and his family. What happened to them at Sharks with the team folding unexpectedly was so sad. Looks like they landed on their feet.

Gabe’s Dad
2 days ago

My 9yr old was pumped to see Ayden crushing the NAG!

zthomas
2 days ago
  • Austin Chu
This Guy
2 days ago

Geeze that’s fast!

OldCoach
2 days ago

Man, the Tans sure club jump a lot. I’m guessing this isn’t their final destination

swimming on hate
Reply to  OldCoach
2 days ago

Isn’t this their 3rd club in a year? I’m having a hard time keeping track

Lanelinehugger
Reply to  OldCoach
2 days ago

I believe the Crow Canyon coach shut down the club suddenly this year so their swimmers had to move and find new clubs. At San Ramon, SRVA is the only other option I think

SwimParent
Reply to  Lanelinehugger
2 days ago

SRVA is the up and coming option. They qualified 3rd combined at Far Westerns, just a couple of points behind the combined Crow/PLS team. Good talend joining SRVA and his new coach. Training is more demanding as well and it shows in the results.

OldCoach
Reply to  SwimParent
1 day ago

SRVA is great. I’m wondering how long they stay there is my point.

UnwillingSeaHawk
Reply to  OldCoach
1 day ago

Well, if you were to believe what Joe Natina told his swimmers at PLS, he kicked the Tans out of the team.
Talk about ruining one’s credibility because his ego could not handle their departure. I guess modeling integrity in front of teenage swimmers is not a priority for some.

OldCoach
Reply to  UnwillingSeaHawk
9 hours ago

I wasn’t at that practice and I’m guessing you weren’t either. And I’m also guessing the Tans will be on a new club within 18 months

UnwillingSeaHawk
Reply to  OldCoach
5 hours ago

I was at that practice. If you weren’t all you have to do is ask any of the elite swimmers. We all heard it.

OldCoach
Reply to  UnwillingSeaHawk
1 hour ago

I’m just curious who is forcing you to be on PLS? There are plenty of great clubs in that area with plenty of great coaches.

Bobthebuilderrocks
2 days ago

Surprised they didn’t go to PLS to follow their coach

BR32
Reply to  Bobthebuilderrocks
2 days ago

They don’t like the training, it’s a ton of yards.

PLS training doesn’t work for everyone, we only see the people it works well for on swimswam.

Last edited 2 days ago by BR32
Bobthebuilderrocks
Reply to  BR32
2 days ago

I guess they wouldn’t have been able to swim for Matt Paige, huh? Yeah, that makes sense thinking about it now

Bluebell
Reply to  BR32
2 days ago

Hilarious about yards and PLS. PLS have 4 athletes going to Worlds, World Juniors, and WUGs, all qualifying in different events, and none of them in distance. I very much doubt it’s from a ton of yards, as you say. I’m sure it’s got to do with phenomenal coaching staff, Steve, Joe, etc.

GiveUsABreak
Reply to  Bluebell
2 days ago

Out of the 4 athletes 2 don’t even train at PLS or just joined (Liberty and Teagan). It’s funny how quickly swimmer talent is used to talk up a program.

Bluebell
Reply to  GiveUsABreak
1 day ago

And I’m sorry, Ayden Tan has trained at SRVA how long? 2 months. Teagan has been with PLS on and off since last year…

GiveUsABreak
Reply to  Bluebell
1 day ago

If by on and off you mean visiting a handful of days in a year, you are being disingenuous. Definitely more off than on. In fact she was visiting Crow during xmas too.
Nice attempt at a strawman argument. Nobody in here claimed Ayden’s success is exclusively due to SRVA training. But he has reached new heights at SRVA. The training definitely hasn’t hurt him.

BR32
Reply to  Bluebell
1 day ago

lol I talked to Ayden and Mikayla about this specifically.

It doesn’t matter if 4 athletes from PLS are going to international competition this year. That doesn’t mean PLS training works for everyone…It doesn’t.

Besides two of them don’t even train there and Luka and Tim count as athletes who train distance.

Thomas The Tank Engine
2 days ago

Michael Andrew never catches a break.

Sad.

About Braden Keith

Braden Keith

Braden Keith is the Editor-in-Chief and a co-founder/co-owner of SwimSwam.com. He first got his feet wet by building The Swimmers' Circle beginning in January 2010, and now comes to SwimSwam to use that experience and help build a new leader in the sport of swimming. Aside from his life on the InterWet, …

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