USA Boys 10 & under - 50 M Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1451 | Elias Lien | 54.99 | 7 | B Min | BB: 49.29 (+5.70s | 10.4%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 1452 | Evan Wang | 54.99 | 8 | B Min | BB: 49.29 (+5.70s | 10.4%) | Olympic Cascade Aquatics | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 1453 | Ethan Lyu | 55.01 | 8 | B Min | BB: 49.29 (+5.72s | 10.4%) | Tri-city Channel Cats | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 1454 | Cohen Gould | 55.03 | 8 | B Min | BB: 49.29 (+5.74s | 10.4%) | Pikes Peak Athletics | 06/20/2025 | 2025 Falfins Long Course Open | |
| 1455 | Van Calicchio | 55.03 | 9 | B Min | BB: 49.29 (+5.74s | 10.4%) | Plantation Swim Team | 01/16/2026 | January Central Park Series | |
| 1456 | Hugo Situ | 55.07 | 9 | B Min | BB: 49.29 (+5.78s | 10.5%) | Daly City Dolphins | 06/06/2025 | BAC C B A Meet | |
| 1457 | Ryan Morcelle | 55.07 | 10 | B Min | BB: 49.29 (+5.78s | 10.5%) | Great Waves Aquatics | 05/10/2025 | 2025 NCAT TYR LC Age Group Open | |
| 1458 | Lehai Li | 55.08 | 8 | B Min | BB: 49.29 (+5.79s | 10.5%) | Alto Swim Club | 04/27/2024 | Alto Spring Jam | |
| 1459 | Joseph Leach | 55.08 | 8 | B Min | BB: 49.29 (+5.79s | 10.5%) | Highlands Ranch Aquatics | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 1460 | Charles Storm | 55.10 | 8 | B Min | BB: 49.29 (+5.81s | 10.5%) | Red Wing Swim Club | 05/03/2025 | 2025 MN RSC Pentathlon | |
| 1461 | Connor Williams | 55.12 | 8 | B Min | BB: 49.29 (+5.83s | 10.6%) | Foxjets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1462 | Samuel Hoftiezer | 55.12 | 7 | B Min | BB: 49.29 (+5.83s | 10.6%) | Watertown Area Swim Club | 07/18/2025 | 2025 SD State Long Course Meet | |
| 1463 | Zachary Tan | 55.13 | 8 | B Min | BB: 49.29 (+5.84s | 10.6%) | Rochester Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1464 | Evan Doong | 55.14 | 9 | B Min | BB: 49.29 (+5.85s | 10.6%) | Sunnyvale Swim Club | 05/17/2025 | 2025 LAMV SCM C B A+ | |
| 1465 | Samuel Hitz | 55.14 | 10 | B: 44.49 (+10.65s | 19.3%) | Portneuf Valley Swim Team | 07/18/2025 | 2025 LCM Summer Championships | ||
| 1466 | Boaz Mccabe | 55.14 | 8 | B Min | BB: 49.29 (+5.85s | 10.6%) | Cortez Water Dragons | 05/31/2025 | 2025 CO Cortez LC Summer Open | |
| 1467 | Terence Wu | 55.16 | 8 | B Min | BB: 49.29 (+5.87s | 10.6%) | Blue Dolphin Swim Team | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 1468 | Linkon Malone | 55.17 | 8 | B Min | BB: 49.29 (+5.88s | 10.7%) | Sawtooth Aquatic Club | 05/16/2025 | 2025 Spring Fling LC Invitational | |
| 1469 | Simon Spidle | 55.18 | 8 | B Min | BB: 49.29 (+5.89s | 10.7%) | Georgia Coastal Aquatic Team | 05/23/2025 | EAJ Mayhem 2025 | |
| 1470 | Cameron Fleming | 55.18 | 8 | B Min | BB: 49.29 (+5.89s | 10.7%) | Fast Fins Elite | 05/16/2025 | 2025 ST ASC Spring Showcase | |
| 1471 | Avery Fogarty | 55.19 | 9 | B Min | BB: 49.29 (+5.90s | 10.7%) | Maverick Aquatics | 06/19/2025 | 2025 CO Grand Junction Invitational | |
| 1472 | Alec Henriques | 55.20 | 9 | B Min | BB: 49.29 (+5.91s | 10.7%) | Napa Valley Swim Team | 06/21/2025 | NVST Last Chance AG Champs Summer Plunge 2025 | |
| 1473 | Avyaan Shirodkar | 55.21 | 8 | B Min | BB: 49.29 (+5.92s | 10.7%) | Nova of Virginia | 06/27/2024 | NOVA Firecracker Classic | |
| 1474 | Henry Gavin Moss | 55.21 | 10 | B Min | BB: 49.29 (+5.92s | 10.7%) | Westlake Aquatic Facility | 04/05/2025 | 2025 ST TXLA 10 U Long Course Kick Off | |
| 1475 | Jackson Porter | 55.22 | 9 | B Min | BB: 49.29 (+5.93s | 10.7%) | Stingray Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 1476 | Holden Gustin | 55.26 | 8 | B Min | BB: 49.29 (+5.97s | 10.8%) | Hurricanes Swim Team | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 1477 | Rorick Umbras | 55.26 | 10 | B Min | BB: 49.29 (+5.97s | 10.8%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 1478 | Kian Davidson | 55.30 | 7 | B Min | BB: 49.29 (+6.01s | 10.9%) | Lake Erie Silver Dolphins | 06/12/2025 | Holtrey Summer Classic | |
| 1479 | Koa Larson | 55.31 | 9 | B Min | BB: 49.29 (+6.02s | 10.9%) | Gator Swim Club | 06/06/2025 | 2025 MAKOS Summer Splash | |
| 1480 | Silas Roland | 55.32 | 8 | B Min | BB: 49.29 (+6.03s | 10.9%) | Univ. of Denver Hilltoppers | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 1481 | Ian Jung | 55.32 | 10 | B Min | BB: 49.29 (+6.03s | 10.9%) | Gator Swim Club | 06/20/2025 | 2025 FAST Independence Invitational | |
| 1482 | Alexander Zhang | 55.33 | 8 | B Min | BB: 49.29 (+6.04s | 10.9%) | Alamo Area Aquatic Association | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 1483 | Caleb Lee | 55.34 | 8 | B Min | BB: 49.29 (+6.05s | 10.9%) | Nova of Virginia | 04/26/2024 | NOVA LC Kick Off | |
| 1484 | Felix Goetz | 55.34 | 8 | B Min | BB: 49.29 (+6.05s | 10.9%) | Sarasota Sharks | 05/16/2025 | 2025 SYS Memorial Meet | |
| 1485 | Michael O'Connell | 55.34 | 9 | B Min | BB: 49.29 (+6.05s | 10.9%) | Riptide Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1486 | Ramsey Lee | 55.35 | 8 | B Min | BB: 49.29 (+6.06s | 10.9%) | Sea Devils | 05/10/2025 | 2025 MN HURR LC Spring Opener | |
| 1487 | Quintus Cheung | 55.37 | 8 | B Min | BB: 49.29 (+6.08s | 11.0%) | Milpitas Aquatic Club | 07/19/2025 | Alto Last Splash | |
| 1488 | Finn Blakeslee | 55.37 | 9 | B Min | BB: 49.29 (+6.08s | 11.0%) | Hood River Valley Swim Team | 05/02/2025 | Bend Swim Club May Invitational | |
| 1489 | Adam Oorlog | 55.38 | 9 | B Min | BB: 49.29 (+6.09s | 11.0%) | Brookings Swim Club | 06/27/2025 | 2025 SD SFST Sanford Invite | |
| 1490 | Zihan Zhao | 55.39 | 8 | B Min | BB: 49.29 (+6.10s | 11.0%) | Pacific Dragons Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 1491 | Isaiah Wright | 55.39 | 8 | B Min | BB: 49.29 (+6.10s | 11.0%) | Central Minnesota Aquatics | 06/13/2025 | 2025 SD Aberdeen Summer High Point Swim Meet | |
| 1492 | Dutch Pyburn | 55.41 | 8 | B: 55.39 (+0.02s | 0.0%) | Albany Aquatic Association | 05/02/2025 | 2025 AAA May LC Invitational | ||
| 1493 | Zeke Mallory | 55.43 | 8 | B: 55.39 (+0.04s | 0.1%) | Alamo Area Aquatic Association | 06/20/2025 | 2025 ST AAAA NS George Block Invite | ||
| 1494 | Theodore Neice | 55.46 | 7 | B: 55.39 (+0.07s | 0.1%) | Lake Oswego Swim Club | 06/06/2025 | 2025 THSC June Invitational | ||
| 1495 | Lincoln Gansluckner | 55.46 | 9 | B: 55.39 (+0.07s | 0.1%) | South East Metro Sharks | 06/20/2025 | 2025 MN MAN Red White Blue Invite | ||
| 1496 | Rees Yan | 55.47 | 10 | B: 55.39 (+0.08s | 0.1%) | Cascadia Swimming | 05/30/2025 | LA OPEN 2025 | ||
| 1497 | Oskaras Monkelis | 55.49 | 9 | B: 55.39 (+0.10s | 0.2%) | West Florida Lightning Aquatic | 07/04/2025 | 2025 SPA S SEMINOLE SUNRISE LANES SWIM MEET | ||
| 1498 | Keith Guo | 55.49 | 8 | B: 55.39 (+0.10s | 0.2%) | Pacific Dragons Swim Team | 06/14/2025 | 2025 IST June Invtational | ||
| 1499 | Christopher Ewing | 55.49 | 8 | B: 55.39 (+0.10s | 0.2%) | South Lake Aquatic Club | 04/26/2025 | 10th Annual Hohne Memorial Invitational | ||
| 1500 | Dax Lindsey | 55.50 | 8 | B: 55.39 (+0.11s | 0.2%) | Dart Swimming | 06/21/2024 | Reno Aquatic Club Gamble | ||
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.