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 | |
|---|---|---|---|---|---|---|---|---|---|
| 351 | Nan-Yi Yeh | 41.48 | 10 | A Min | AA: 41.09 (+0.39s | 0.9%) | Marlins Of Raleigh | 04/25/2026 | 2026 NCAC Quad Meet | |
| 352 | Camden Kern | 41.48 | 10 | A Min | AA: 41.09 (+0.39s | 0.9%) | Cavalier Aquatics/Piedmont Fam | 05/02/2026 | BASS Jim Frye Memorial Invitational May 2026 | |
| 353 | Isaac Zepeda | 41.48 | 10 | A Min | AA: 41.09 (+0.39s | 0.9%) | South Gate Aquatics Club | 06/11/2026 | 2026 SCS June AG Invite | |
| 354 | Hayden Reed | 41.48 | 10 | A Min | AA: 41.09 (+0.39s | 0.9%) | C.M. Gatton Beaumont YMCA | 06/26/2026 | 2026 Colonel Summer Classic Copied | |
| 355 | Meron Tsegai | 41.50 | 9 | A Min | AA: 41.09 (+0.41s | 1.0%) | Nation\\\\\\'s Capital Swim Club | 06/05/2026 | HNVR Storm Surge 2026 | |
| 356 | Alexander Rich | 41.51 | 10 | A Min | AA: 41.09 (+0.42s | 1.0%) | Maverick Aquatics | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 357 | Cullen Owen | 41.52 | 10 | A Min | AA: 41.09 (+0.43s | 1.0%) | SwimMAC Carolina | 06/19/2026 | GSA 70th Annual Eastern Invitational | |
| 358 | Lev Petrovskii | 41.54 | 9 | A Min | AA: 41.09 (+0.45s | 1.1%) | Swim Fort Lauderdale | 06/17/2026 | Swim Fort Lauderdale Speedo Summer Classic 26 | |
| 359 | Daniel Reschke | 41.54 | 10 | A Min | AA: 41.09 (+0.45s | 1.1%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 360 | Henry Lampley | 41.54 | 9 | A Min | AA: 41.09 (+0.45s | 1.1%) | YMCA of Florida\\\\\\'s First Coast | 06/26/2026 | 2026 SwimRise Season Finale | |
| 361 | Harvey Zhang | 41.55 | 10 | A Min | AA: 41.09 (+0.46s | 1.1%) | Wave Aquatics | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 362 | Christian Bland | 41.57 | 10 | A Min | AA: 41.09 (+0.48s | 1.2%) | Northeast Family YMCA | 06/26/2026 | 2026 Colonel Summer Classic Copied | |
| 363 | William Sun | 41.57 | 10 | A Min | AA: 41.09 (+0.48s | 1.2%) | Coast Gaurd Blue Dolphins | 06/11/2026 | NOVA 2026 Virginia Commonwealth Games | |
| 364 | Emilio Retana | 41.58 | 10 | A Min | AA: 41.09 (+0.49s | 1.2%) | El Paso Aqua Posse | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 365 | Brendon Kim | 41.60 | 10 | A Min | AA: 41.09 (+0.51s | 1.2%) | H2o Swim Team | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 366 | John Calhoun | 41.60 | 10 | A Min | AA: 41.09 (+0.51s | 1.2%) | Nova of Virginia | 06/11/2026 | NOVA 2026 Virginia Commonwealth Games | |
| 367 | Alex Liu | 41.63 | 10 | A Min | AA: 41.09 (+0.54s | 1.3%) | Anglerfish Aquatics | 06/05/2026 | 2026 NE SAC America S Cup | |
| 368 | Oliver Klauke | 41.64 | 9 | A Min | AA: 41.09 (+0.55s | 1.3%) | Unattached | 06/26/2026 | 2026 MOR Long Course Qualifier | |
| 369 | Koki Tsujiuchi | 41.65 | 10 | A Min | AA: 41.09 (+0.56s | 1.3%) | Huntsville Swim Association | 05/16/2026 | NAC LC May Classic | |
| 370 | Beckett Collins | 41.65 | 10 | A Min | AA: 41.09 (+0.56s | 1.3%) | Columbia Swim Club | 06/26/2026 | 88th CSP Summer Invitational | |
| 371 | Potter Wright | 41.66 | 10 | A Min | AA: 41.09 (+0.57s | 1.4%) | Lexington Dolphins | 06/26/2026 | 2026 Colonel Summer Classic Copied | |
| 372 | Kaimana Hashimoto | 41.67 | 10 | A Min | AA: 41.09 (+0.58s | 1.4%) | Splash Aquatics | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 373 | Arsenii Chebaev | 41.68 | 10 | A Min | AA: 41.09 (+0.59s | 1.4%) | Bravo Swim Team | 05/22/2026 | 2026 Terrapin Invite | |
| 374 | Winston Chase | 41.69 | 10 | A Min | AA: 41.09 (+0.60s | 1.4%) | Utah Valley Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 375 | Alexander Bicherl | 41.69 | 10 | A Min | AA: 41.09 (+0.60s | 1.4%) | Bluefish Swim Club | 06/26/2026 | 2026 NE YNS June Prelims Finals Meet | |
| 376 | Beckham Sleeth | 41.70 | 9 | A Min | AA: 41.09 (+0.61s | 1.5%) | Highlands Ranch Aquatics | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 377 | Cole Proescher | 41.71 | 10 | A Min | AA: 41.09 (+0.62s | 1.5%) | Orinda Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 378 | Stryker Fonseca | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Barracuda Aquatic Club | 07/17/2025 | 2025 UTAGS LC Championships | |
| 379 | Colt Sivells | 41.73 | 10 | A Min | AA: 41.09 (+0.64s | 1.5%) | Southwest Stars Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 380 | Vance Schildknecht | 41.74 | 9 | A Min | AA: 41.09 (+0.65s | 1.6%) | Gulliver Swim Club | 06/17/2026 | Swim Fort Lauderdale Speedo Summer Classic 26 | |
| 381 | Luke Ford | 41.75 | 10 | A Min | AA: 41.09 (+0.66s | 1.6%) | The Claremont Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 382 | Raf Rothfuss de la Asunc | 41.75 | 9 | A Min | AA: 41.09 (+0.66s | 1.6%) | SwimMAC Carolina | 06/26/2026 | Sharks Aquatic Club Last Chance Qualifier | |
| 383 | Evan Wik | 41.75 | 9 | A Min | AA: 41.09 (+0.66s | 1.6%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 384 | Cash Bailey | 41.76 | 10 | A Min | AA: 41.09 (+0.67s | 1.6%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 385 | Toby Wong | 41.78 | 11 | A Min | AA: 41.09 (+0.69s | 1.7%) | Quicksilver Swimming | 07/31/2025 | 2025 Long Course Far Western Championship | |
| 386 | Yaroslav Biliavskyi | 41.78 | 10 | A Min | AA: 41.09 (+0.69s | 1.7%) | Tac Titans | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 387 | Easton Mower | 41.80 | 10 | A Min | AA: 41.09 (+0.71s | 1.7%) | Poseidon Swimming Inc | 04/17/2026 | NOVA Long Course Kick Off | |
| 388 | Isaac Kalsbeek | 41.80 | 10 | A Min | AA: 41.09 (+0.71s | 1.7%) | New Wave Swim Team | 07/05/2026 | 2026 TAC July Qualifier Meet | |
| 389 | Evan Fairhurst | 41.81 | 10 | A Min | AA: 41.09 (+0.72s | 1.7%) | Mecklenburg Swim Association | 07/08/2026 | ATOM LC Finale 2026 | |
| 390 | Caleb Nash | 41.81 | 10 | A Min | AA: 41.09 (+0.72s | 1.7%) | Unattached | 05/15/2026 | 2026 EAC Memorial Invite | |
| 391 | Sawyer Heath | 41.82 | 10 | A Min | AA: 41.09 (+0.73s | 1.7%) | Greensboro Community YMCA | 06/12/2026 | 2026 GCY Sprint And Distance | |
| 392 | Owen Kramer | 41.82 | 10 | A Min | AA: 41.09 (+0.73s | 1.7%) | New Wave Swim Team | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 393 | Matthew Sha | 41.83 | 10 | A Min | AA: 41.09 (+0.74s | 1.8%) | Nashville Aquatic Club | 04/18/2026 | HSA April LC Meet | |
| 394 | Max Frankel | 41.83 | 10 | A Min | AA: 41.09 (+0.74s | 1.8%) | SwimRight Team | 05/22/2026 | 2026 Doral Swim Club LCM Spring Invite | |
| 395 | Kyle Whitley | 41.83 | 10 | A Min | AA: 41.09 (+0.74s | 1.8%) | Fast Falcons | 06/25/2026 | 2026 FAST Independence Invitational | |
| 396 | Max Muse | 41.83 | 8 | A Min | AA: 41.09 (+0.74s | 1.8%) | Auburn Aquatics | 06/06/2026 | 2026 Jack Barnasastle Invitational | |
| 397 | Coleman McCheyne | 41.84 | 10 | A Min | AA: 41.09 (+0.75s | 1.8%) | Aquatic Team Of Mecklenburg | 06/05/2026 | 2026 TEAM School S Out Summer Invite | |
| 398 | Christian Bertram | 41.86 | 10 | A Min | AA: 41.09 (+0.77s | 1.8%) | Naval Academy Aquatic Club | 06/12/2026 | 2026 SwimRVA Summer Invitational | |
| 399 | John Piracci | 41.86 | 10 | A Min | AA: 41.09 (+0.77s | 1.8%) | SwimRVA | 06/12/2026 | 2026 SwimRVA Summer Invitational | |
| 400 | Dean Hunter | 41.87 | 10 | A Min | AA: 41.09 (+0.78s | 1.9%) | Planet Swim Aquatics | 06/26/2026 | 2026 Planet Swim Summer Championships | |
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.