USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2301 | Lincoln Smith | 41.51 | 10 | BB Min | A: 37.59 (+3.92s | 9.4%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 2302 | Matthew Garcia Castillo | 41.51 | 10 | BB Min | A: 37.59 (+3.92s | 9.4%) | Greater Tampa Swim Association | 04/10/2026 | 2026 GTSA TYR Spring Championship | |
| 2303 | Caiden Henricks | 41.52 | 10 | BB Min | A: 37.59 (+3.93s | 9.5%) | Potomac Marlins | 03/20/2026 | March Madness 2026 | |
| 2304 | Ryan Perlenfein | 41.52 | 9 | BB Min | A: 37.59 (+3.93s | 9.5%) | New Albany Aquatic Club | 02/19/2026 | 2026 OH UASC SC Regional Championships | |
| 2305 | Lucas Xie | 41.52 | 9 | BB Min | A: 37.59 (+3.93s | 9.5%) | Three Village Swim Club | 03/01/2026 | 2026 MR TVSC St Patrick S Day Last Chance | |
| 2306 | Callan Scribner | 41.52 | 10 | BB Min | A: 37.59 (+3.93s | 9.5%) | SwimEnergy Aquatics | 02/07/2026 | 2026 GCST WINTER OPEN | |
| 2307 | Anthony Sieiro | 41.52 | 8 | BB Min | A: 37.59 (+3.93s | 9.5%) | Blue Marlins Of Hialeah Garden | 06/20/2026 | NMST BMHG June Summer Invite 26 (SCY) Cop | |
| 2308 | Obinna Uzowulu | 41.52 | 10 | BB Min | A: 37.59 (+3.93s | 9.5%) | Alamo Area Aquatic Association | 01/10/2026 | 2026 ST AHAC B Champs South Copied | |
| 2309 | Arlow Velarde | 41.52 | 9 | BB Min | A: 37.59 (+3.93s | 9.5%) | York Swim Club of Northern Vir | 02/07/2026 | 2026 PM 14 U Champs Qualifier | |
| 2310 | William Martzke | 41.52 | 10 | BB Min | A: 37.59 (+3.93s | 9.5%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 10/26/2025 | Lisa Ferris Fall Festival Time Trial 2025 | |
| 2311 | Oliver Cao | 41.52 | 9 | BB Min | A: 37.59 (+3.93s | 9.5%) | Club Wolverine | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 2312 | Tomer Fromberg | 41.52 | 9 | BB Min | A: 37.59 (+3.93s | 9.5%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 2313 | Ryan Kashani | 41.52 | 10 | BB Min | A: 37.59 (+3.93s | 9.5%) | Houston Hydra | 11/01/2024 | Gravy Boat Invitational | |
| 2314 | Joseph Beebe | 41.53 | 9 | BB Min | A: 37.59 (+3.94s | 9.5%) | Utica Shelby Swim Club | 02/27/2026 | 2026 Junior Cup | |
| 2315 | Rowan Payne | 41.53 | 9 | BB Min | A: 37.59 (+3.94s | 9.5%) | Nation\\\\\\'s Capital Swim Club | 02/13/2026 | 2026 ASA President S Day Classic | |
| 2316 | Thomas Nguyen | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | Cascade Swim Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 2317 | Gabe Lydek | 41.53 | 9 | BB Min | A: 37.59 (+3.94s | 9.5%) | Firestone Akron Swim Team | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2318 | Noah Jagdev | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | San Ramon Valley Aquatics | 04/09/2026 | 2026 Far Western SC Hosted By SCSC | |
| 2319 | Daniel Yates | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | Upper Valley Aquatic Club | 01/04/2026 | 2026 NE UVAC CVI Invitational | |
| 2320 | Ashton Reinhart | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | Red Wing Swim Club | 06/23/2026 | 2026 MN RWSC Summer Mini Meet | |
| 2321 | David Tretiakov | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | Crimson Aquatics | 11/14/2025 | 2025 NE CRIM November Specialty Copied C | |
| 2322 | Daniel Lichko | 41.53 | 10 | BB Min | A: 37.59 (+3.94s | 9.5%) | Hauppauge Swimming | 12/11/2025 | 2025 MR HAUP Eagle Invitational | |
| 2323 | Jackson Stafford | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | Bgc-N. Westchester Marlins | 02/20/2026 | 2026 MR Silvers North Championship YMID | |
| 2324 | Yaeger Voithofer | 41.54 | 9 | BB Min | A: 37.59 (+3.95s | 9.5%) | Com Aquatics | 11/14/2025 | 2025 ST AAAA AH PW NC Invite | |
| 2325 | Andrew Pappageorge | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | Herndon Aquatic Club | 03/21/2026 | 2026 MAKO SPRING FLING | |
| 2326 | Thomas Van Bruggen | 41.54 | 8 | BB Min | A: 37.59 (+3.95s | 9.5%) | Metro Marlins Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 2327 | Shi Zha | 41.54 | 8 | BB Min | A: 37.59 (+3.95s | 9.5%) | Charles River Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 2328 | Ari Isis | 41.54 | 9 | BB Min | A: 37.59 (+3.95s | 9.5%) | Capital of Texas Aquatics | 12/12/2025 | 2025 ST AAAA NS Winter Wonderland | |
| 2329 | Briggs North | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 2330 | Brooks Dana-Evans | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | Annapolis Swim Club | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 2331 | Coewyn Curtin | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | St Johns Sea Lions | 02/15/2026 | 2026 MTSL Championship | |
| 2332 | Owen Yusko | 41.54 | 9 | BB Min | A: 37.59 (+3.95s | 9.5%) | Ensworth Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 2333 | Walid Ould Abbou | 41.54 | 10 | BB Min | A: 37.59 (+3.95s | 9.5%) | Freedom Aquatics | 01/10/2026 | 2026 MR FREE Freedom Winter Magic | |
| 2334 | Daniel Nye | 41.55 | 8 | BB Min | A: 37.59 (+3.96s | 9.5%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 2335 | Barry McDonald | 41.55 | 9 | BB Min | A: 37.59 (+3.96s | 9.5%) | Ofpy Makos | 02/27/2026 | Ozark Division I Championship | |
| 2336 | Johnny Hoesch | 41.55 | 9 | BB Min | A: 37.59 (+3.96s | 9.5%) | Olympus Aquatics | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 2337 | Shepherd Carpentier | 41.55 | 10 | BB Min | A: 37.59 (+3.96s | 9.5%) | YMCA of Virginia\\\\\\'s Blue Ridge | 03/07/2026 | PYSA Champs 2026 | |
| 2338 | Meade Murphy | 41.56 | 9 | BB Min | A: 37.59 (+3.97s | 9.6%) | Upper Main Line YMCA | 12/11/2025 | 2025 East Coast WinterFest | |
| 2339 | Bradley Royce | 41.56 | 10 | BB Min | A: 37.59 (+3.97s | 9.6%) | Highlands Ranch Aquatics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 2340 | Kevin Shih | 41.56 | 9 | BB Min | A: 37.59 (+3.97s | 9.6%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 2341 | Thomas Bailey | 41.56 | 9 | BB Min | A: 37.59 (+3.97s | 9.6%) | Raleigh Swimming Association | 03/14/2026 | 2026 MOR Reagan Martin Rocks Swim Meet | |
| 2342 | Anderson Moore | 41.56 | 8 | BB Min | A: 37.59 (+3.97s | 9.6%) | Stowe Swimmers | 01/30/2026 | 2026 NE UVAC Silvers | |
| 2343 | Kai Mihov | 41.57 | 10 | BB Min | A: 37.59 (+3.98s | 9.6%) | Palo Alto Stanford Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 2344 | Logan Stephens | 41.57 | 9 | BB Min | A: 37.59 (+3.98s | 9.6%) | Livonia Community Swim Club | 02/20/2026 | For The Love Of Swimming | |
| 2345 | Eli Delman | 41.57 | 10 | BB Min | A: 37.59 (+3.98s | 9.6%) | Central Ohio Aquatics | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2346 | Roman Tsikalov | 41.58 | 10 | BB Min | A: 37.59 (+3.99s | 9.6%) | Otter Swim Club | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 2347 | Thedford Neely | 41.59 | 10 | BB Min | A: 37.59 (+4.00s | 9.6%) | Eagle Swimming Association | 10/26/2024 | 2024 ESA Halloween Classic | |
| 2348 | Noah Vukojevic | 41.59 | 8 | BB Min | A: 37.59 (+4.00s | 9.6%) | Olympus Aquatics | 11/06/2025 | 2025 OA Thanksgiving Turkey Meet | |
| 2349 | Oliver Jahshan | 41.59 | 9 | BB Min | A: 37.59 (+4.00s | 9.6%) | The Fish | 03/20/2026 | 26th Annual Spring Championships | |
| 2350 | John Glenn | 41.60 | 9 | BB Min | A: 37.59 (+4.01s | 9.6%) | SlipStream Aquatics | 02/13/2026 | 2026 CO NJ Groundhog 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.