USA Boys 10 & under - 50 Y Free
These rankings show the swimmers' placement within the United States.They are based on the swimmer's personal best, their current age category, and team; and are calculated from all the meets results.
For each swimmer, you can find the swimmer's ranking, their best time, the corresponding time standard, as well as how much faster the swimmer needs to be to reach the next level. The last columns provide information about the event they achieved this personal best.
Swimmer Rankings
| Ranking | Name | Time | Age | Standard | to Next Standard | Team | Date | Meet | |
|---|---|---|---|---|---|---|---|---|---|
| 1351 | Mateo Sison | 31.43 | 10 | BB Min | A: 31.09 (+0.34s | 1.1%) | San Ramon Valley Aquatics | 03/20/2026 | SCY Spring Age Group Championships | |
| 1352 | Brayden Li | 31.44 | 9 | BB Min | A: 31.09 (+0.35s | 1.1%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1353 | Joshua Morris | 31.44 | 10 | BB Min | A: 31.09 (+0.35s | 1.1%) | Shorewood | 02/15/2025 | 2025 OR HS 6A 3 | |
| 1354 | Aldar Khamutaev | 31.45 | 9 | BB Min | A: 31.09 (+0.36s | 1.1%) | Matchpoint Nyc | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 1355 | Charlie Rippy | 31.45 | 10 | BB Min | A: 31.09 (+0.36s | 1.1%) | Moses Lake | 01/11/2025 | 2025 Kentridge HS Invitational BOYS OBSERVED | |
| 1356 | Brody Carter | 31.45 | 10 | BB Min | A: 31.09 (+0.36s | 1.1%) | Caldera | 02/14/2025 | 2025 OR HS 5a 4 | |
| 1357 | Yining Zhao | 31.46 | 10 | BB Min | A: 31.09 (+0.37s | 1.2%) | Tac Titans | 03/25/2026 | 2026 TAC TITANS Tarheel States Meet | |
| 1358 | Maddox Winegar | 31.46 | 9 | BB Min | A: 31.09 (+0.37s | 1.2%) | Bloomington Normal Swim Club | 03/26/2026 | Destination Athlete Centennial Invite 2026 | |
| 1359 | Fletcher Baral | 31.46 | 10 | BB Min | A: 31.09 (+0.37s | 1.2%) | Saint Andrew\\\\\\'s Aquatics | 10/11/2025 | Quadtober Challenge | |
| 1360 | Lincoln McClain | 31.47 | 10 | BB Min | A: 31.09 (+0.38s | 1.2%) | Mountain State Storm | 01/17/2026 | Club Mountaineer January Age Group Winter Spl | |
| 1361 | Oliver Monroe | 31.47 | 10 | BB Min | A: 31.09 (+0.38s | 1.2%) | Royal Swimming | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 1362 | Joshua Lowery | 31.47 | 10 | BB Min | A: 31.09 (+0.38s | 1.2%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 10/26/2025 | Lisa Ferris Fall Festival Time Trial 2025 | |
| 1363 | Zhouhan Yang | 31.47 | 10 | BB Min | A: 31.09 (+0.38s | 1.2%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 1364 | Jigdel Wangchuk | 31.47 | 9 | BB Min | A: 31.09 (+0.38s | 1.2%) | Twisters Swim Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1365 | Brandt Dunlap | 31.47 | 10 | BB Min | A: 31.09 (+0.38s | 1.2%) | Naval Academy Aquatic Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 1366 | Chayton Zhou | 31.48 | 9 | BB Min | A: 31.09 (+0.39s | 1.2%) | Pleasanton Seahawks | 03/20/2026 | SCY Spring Age Group Championships | |
| 1367 | Leo Mercier | 31.48 | 10 | BB Min | A: 31.09 (+0.39s | 1.2%) | Egra Waves | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 1368 | Owen Vaiana | 31.48 | 9 | BB Min | A: 31.09 (+0.39s | 1.2%) | Michigan Lakeshore Aquatics | 10/17/2025 | 2025 WMS Boo Bash | |
| 1369 | Connor Finan | 31.49 | 9 | BB Min | A: 31.09 (+0.40s | 1.3%) | Atlantic Coast Athletic Club | 03/12/2026 | 2026 Virginia Swimming SC Age Group Champions | |
| 1370 | Zackary Gromowski | 31.49 | 9 | BB Min | A: 31.09 (+0.40s | 1.3%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1371 | Axel Wortman | 31.49 | 10 | BB Min | A: 31.09 (+0.40s | 1.3%) | Bozeman Barracudas Swim Team | 12/04/2025 | 2025 Holiday Swim Festival | |
| 1372 | Leo Collar | 31.50 | 9 | BB Min | A: 31.09 (+0.41s | 1.3%) | Hurricane Penguins Swim Club | 02/14/2026 | 2026 Best ValenTimes Meet | |
| 1373 | William Foryth | 31.50 | 10 | BB Min | A: 31.09 (+0.41s | 1.3%) | McDaniel | 02/12/2025 | 2025 OR HS 6A 1 | |
| 1374 | Kyle Whitley | 31.50 | 10 | BB Min | A: 31.09 (+0.41s | 1.3%) | Fast Falcons | 03/05/2026 | 2026 Florida Swimming FLAGS NORTH | |
| 1375 | Marcus Kalmi | 31.51 | 9 | BB Min | A: 31.09 (+0.42s | 1.3%) | Riptide Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 1376 | Robert Mulder | 31.51 | 10 | BB Min | A: 31.09 (+0.42s | 1.3%) | Badger Swim Club,Inc. | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1377 | Forest Hastings | 31.51 | 10 | BB Min | A: 31.09 (+0.42s | 1.3%) | Roseburg | 02/13/2026 | 2026 OR HS 6A 7 | |
| 1378 | Preston Kerchusky | 31.51 | 10 | BB Min | A: 31.09 (+0.42s | 1.3%) | Boise YMCA Swim Team | 12/20/2025 | 2025 BY Candy Cane Invitational | |
| 1379 | Ethan Canlas | 31.51 | 10 | BB Min | A: 31.09 (+0.42s | 1.3%) | Sandpipers of Nevada | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 1380 | Aiden Gordon | 31.52 | 9 | BB Min | A: 31.09 (+0.43s | 1.4%) | Monroe-Woodbury Devilfish Aqua | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1381 | Zachary Mokhiber | 31.52 | 10 | BB Min | A: 31.09 (+0.43s | 1.4%) | T2 Aquatics | 01/16/2026 | 2026 T2 Aquatics Naples Open | |
| 1382 | Carson Youngren | 31.53 | 9 | BB Min | A: 31.09 (+0.44s | 1.4%) | Rochester Stoney Creek | 02/25/2026 | 2026 Boys OAA Red Division Championships | |
| 1383 | Adrian Wong | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | La Mirada Armada | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 1384 | Ryan Koh | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 1385 | Levi Rose | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | Cavalier Aquatics/Piedmont Fam | 11/08/2025 | CA Y Tri Meet | |
| 1386 | Lucius Leven | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | Alamo Area Aquatic Association | 02/20/2026 | 2026 ST AAAA SC STAGS | |
| 1387 | Sebastian Hartline | 31.53 | 10 | BB Min | A: 31.09 (+0.44s | 1.4%) | Multnomah Athletic Club | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 1388 | Michael Cheng | 31.54 | 9 | BB Min | A: 31.09 (+0.45s | 1.4%) | Brea Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 1389 | Jayden Zhu | 31.54 | 10 | BB Min | A: 31.09 (+0.45s | 1.4%) | Otter Swim Club | 03/28/2026 | LAMV C B A+ Meet | |
| 1390 | Mason Bailey | 31.54 | 10 | BB Min | A: 31.09 (+0.45s | 1.4%) | SwimRVA | 12/11/2025 | 2025 East Coast WinterFest | |
| 1391 | Benjamin Wei | 31.55 | 9 | BB Min | A: 31.09 (+0.46s | 1.5%) | Long Island Aquatic Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1392 | Thanh Tran | 31.55 | 9 | BB Min | A: 31.09 (+0.46s | 1.5%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 1393 | Matias Hosein | 31.55 | 10 | BB Min | A: 31.09 (+0.46s | 1.5%) | Gulliver Swim Club | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 1394 | Marcello Rinaldi | 31.55 | 10 | BB Min | A: 31.09 (+0.46s | 1.5%) | Minnetonka Swim Club | 01/30/2026 | 2026 MN MTKA TYR Team Challenge | |
| 1395 | Samuel Fuetsch | 31.55 | 9 | BB Min | A: 31.09 (+0.46s | 1.5%) | Tac Titans | 03/24/2026 | 2026 TAC TITANS March Intrasquad Meet | |
| 1396 | Russell Dsouza | 31.56 | 10 | BB Min | A: 31.09 (+0.47s | 1.5%) | Club Wolverine | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 1397 | Kyle Matus | 31.56 | 10 | BB Min | A: 31.09 (+0.47s | 1.5%) | Belleville High School | 02/26/2026 | 2026 KLAA B Conference Swim Meet | |
| 1398 | Jacob Bowles | 31.57 | 9 | BB Min | A: 31.09 (+0.48s | 1.5%) | Caldera | 02/13/2026 | 2026 OR HS 5A 4 | |
| 1399 | Luke Lim | 31.57 | 10 | BB Min | A: 31.09 (+0.48s | 1.5%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 1400 | Nathan Gutmanovich | 31.57 | 10 | BB Min | A: 31.09 (+0.48s | 1.5%) | Crimson Aquatics | 12/12/2025 | 2025 NE CRIM Frosty Frenzy Trials Finals | |
Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.