USA Boys 10 & under - 50 M Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1601 | Seth Nareedokmai | 55.07 | 8 | B Min | BB: 54.39 (+0.68s | 1.2%) | Jcc Sailfish | 06/12/2025 | Holtrey Summer Classic | |
| 1602 | John Sanchez Cespedes | 55.08 | 10 | B Min | BB: 54.39 (+0.69s | 1.3%) | Coast Aquatics | 04/11/2026 | CAT5 LC Open 2026 | |
| 1603 | Adrian Goo | 55.08 | 10 | B Min | BB: 54.39 (+0.69s | 1.3%) | Walnut Creek Aquabears | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 1604 | Evan Ng | 55.09 | 10 | B Min | BB: 54.39 (+0.70s | 1.3%) | Cincinnati Aquatic Club | 07/10/2026 | 2026 OH SW LC Regional Champs | |
| 1605 | Theodore Sugg | 55.10 | 9 | B Min | BB: 54.39 (+0.71s | 1.3%) | Watauga Swim Team | 06/16/2026 | WCSA Summer Meet 1 @ MSC Copied | |
| 1606 | Michael Yin | 55.11 | 9 | B Min | BB: 54.39 (+0.72s | 1.3%) | Nova of Virginia | 04/17/2026 | NOVA Long Course Kick Off | |
| 1607 | Conrad Winters | 55.11 | 9 | B Min | BB: 54.39 (+0.72s | 1.3%) | Old Dominion Aquatic Club | 06/05/2026 | 2026 TIDE Schools Out Classic | |
| 1608 | Dashiell Wang | 55.14 | 10 | B Min | BB: 54.39 (+0.75s | 1.4%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 1609 | Grigorii Vasilenko | 55.14 | 9 | B Min | BB: 54.39 (+0.75s | 1.4%) | Legacy Aquatics | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 1610 | Michael O'Connell | 55.14 | 10 | B Min | BB: 54.39 (+0.75s | 1.4%) | Riptide Swim Team | 07/17/2026 | 2026 MN MAN Minnesota Regional Championship | |
| 1611 | Liam Thibault | 55.15 | 10 | B Min | BB: 54.39 (+0.76s | 1.4%) | Houston Hydra | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | |
| 1612 | Colin Sheehy | 55.15 | 10 | B Min | BB: 54.39 (+0.76s | 1.4%) | Houston Hydra | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | |
| 1613 | Thomas Salvitti | 55.15 | 9 | B Min | BB: 54.39 (+0.76s | 1.4%) | Raleigh Swimming Association | 04/24/2026 | 2026 RSA Warm Up To LC Copied Copied | |
| 1614 | Rylan Brill | 55.15 | 10 | B Min | BB: 54.39 (+0.76s | 1.4%) | Colorado Stingrays Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 1615 | Aleksander Zuev | 55.15 | 10 | B Min | BB: 54.39 (+0.76s | 1.4%) | Foothills Swim Team | 06/26/2026 | 2026 CO Zone 2 District Meet AAC | |
| 1616 | Colin Joyce | 55.16 | 9 | B Min | BB: 54.39 (+0.77s | 1.4%) | Nova of Virginia | 04/17/2026 | NOVA Long Course Kick Off | |
| 1617 | Zander Flores | 55.16 | 8 | B Min | BB: 54.39 (+0.77s | 1.4%) | Alameda Gators | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1618 | Benjamin Cook | 55.17 | 9 | B Min | BB: 54.39 (+0.78s | 1.4%) | Firefish Aquatics | 06/19/2026 | 2026 Firefish June Jam | |
| 1619 | Grant Bradbury | 55.18 | 8 | B Min | BB: 54.39 (+0.79s | 1.4%) | SwimRVA | 05/29/2026 | 2026 SwimRVA Success Bell | |
| 1620 | Andy Yu | 55.18 | 10 | B Min | BB: 54.39 (+0.79s | 1.4%) | Burlingame Aquatics | 06/12/2026 | BAC Long Course | |
| 1621 | Terence Wu | 55.19 | 9 | B Min | BB: 54.39 (+0.80s | 1.4%) | Bellevue Club Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 1622 | Alexander Zhang | 55.20 | 9 | B Min | BB: 54.39 (+0.81s | 1.5%) | Alamo Area Aquatic Association | 06/20/2025 | 2025 ST AAAA NS George Block Invite | |
| 1623 | Weibo Gao | 55.21 | 10 | B Min | BB: 54.39 (+0.82s | 1.5%) | Pacific Dragons Swim Team | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 1624 | Owen Deis | 55.21 | 10 | B Min | BB: 54.39 (+0.82s | 1.5%) | Clovis Swim Club | 05/24/2025 | 2025 Mike Snyder Memorial | |
| 1625 | Henry Croke | 55.23 | 10 | B Min | BB: 54.39 (+0.84s | 1.5%) | Springfield YMCA Swim Team | 04/17/2026 | 2026 METS Long Course Kickoff | |
| 1626 | Roch Robinson | 55.24 | 8 | B Min | BB: 54.39 (+0.85s | 1.5%) | Nation\\\\\\'s Capital Swim Club | 05/01/2026 | Speedo Spring Splash | |
| 1627 | Kieran McLennan | 55.25 | 9 | B Min | BB: 54.39 (+0.86s | 1.6%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 1628 | Gevon Moss | 55.25 | 7 | B Min | BB: 54.39 (+0.86s | 1.6%) | Blue Waves Swim Club | 04/11/2026 | 2026 Fox April Long Course Invitational | |
| 1629 | Aiden Xu | 55.25 | 9 | B Min | BB: 54.39 (+0.86s | 1.6%) | Northern Nevada Aquatics | 07/10/2026 | 2026 NNA Silver State Championships | |
| 1630 | Aiden Bajracharya | 55.26 | 9 | B Min | BB: 54.39 (+0.87s | 1.6%) | Tac Titans | 05/22/2026 | 2026 TAC TITANS Memorial Day Meet | |
| 1631 | Adam Wanichek | 55.26 | 10 | B Min | BB: 54.39 (+0.87s | 1.6%) | Bellevue Club Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 1632 | Thomas Louzao | 55.26 | 9 | B Min | BB: 54.39 (+0.87s | 1.6%) | Asphalt Green Unified Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 1633 | Hohyeon Cho | 55.26 | 10 | B Min | BB: 54.39 (+0.87s | 1.6%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1634 | Lucas Yuan | 55.27 | 7 | B Min | BB: 54.39 (+0.88s | 1.6%) | Mei\\\\\\'s Typhoons Swimming Club | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 1635 | Benjamin Foster | 55.27 | 9 | B Min | BB: 54.39 (+0.88s | 1.6%) | Neptune Swimming | 06/12/2026 | Neptune Swimming June LC Meet | |
| 1636 | Jason Ma | 55.27 | 10 | B Min | BB: 54.39 (+0.88s | 1.6%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 1637 | Gibson Haynes | 55.28 | 10 | B Min | BB: 54.39 (+0.89s | 1.6%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | |
| 1638 | Oliver Rasmussen | 55.29 | 9 | B Min | BB: 54.39 (+0.90s | 1.6%) | Chamberlain Swim Team | 07/17/2026 | 2026 SD Long Course Rising Stars Swim Meet | |
| 1639 | Ryan Wang | 55.29 | 9 | B Min | BB: 54.39 (+0.90s | 1.6%) | Arctic Aquatics | 06/26/2026 | 2026 NE MST ESC June Memorial | |
| 1640 | Andrew Kaplan | 55.30 | 9 | B Min | BB: 54.39 (+0.91s | 1.6%) | SwimRise Aquatics | 06/26/2026 | 2026 SwimRise Season Finale | |
| 1641 | Coleton Prillaman | 55.30 | 9 | B Min | BB: 54.39 (+0.91s | 1.6%) | Poseidon Swimming Inc | 06/11/2026 | NOVA 2026 Virginia Commonwealth Games | |
| 1642 | Adam Yeh | 55.31 | 8 | B Min | BB: 54.39 (+0.92s | 1.7%) | YMCA of the Triangle Area Swim | 04/24/2026 | 2026 RSA Warm Up To LC Copied Copied | |
| 1643 | Maxen Cao | 55.32 | 10 | B Min | BB: 54.39 (+0.93s | 1.7%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 1644 | Diego Aguirre | 55.32 | 9 | B Min | BB: 54.39 (+0.93s | 1.7%) | El Paso Aqua Posse | 06/26/2026 | 2026 BD EPAP Jack White Memorial Classic | |
| 1645 | Kieran Heidtman | 55.33 | 9 | B Min | BB: 54.39 (+0.94s | 1.7%) | Helios | 05/08/2026 | 2026 Cyrus Blakney Memorial A May Zing Meet | |
| 1646 | Charlie Wheeler | 55.33 | 10 | B Min | BB: 54.39 (+0.94s | 1.7%) | Longmont Swim Club | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 1647 | Benjamin Segear | 55.34 | 10 | B Min | BB: 54.39 (+0.95s | 1.7%) | Fox Swim Club | 04/11/2026 | 2026 Fox April Long Course Invitational | |
| 1648 | Ezekiel Cardenas | 55.34 | 9 | B Min | BB: 54.39 (+0.95s | 1.7%) | EL Paso Border Land Swim Team | 07/23/2026 | 2026 BD Long Course Championship | |
| 1649 | Eli Shin | 55.34 | 9 | B Min | BB: 54.39 (+0.95s | 1.7%) | Stingray Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 1650 | Lionel Sudduth | 55.35 | 9 | B Min | BB: 54.39 (+0.96s | 1.7%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
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.