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 | |
|---|---|---|---|---|---|---|---|---|---|
| 5451 | William Charles | 46.42 | 10 | B Min | BB: 42.89 (+3.53s | 7.6%) | Rochester Swim Club | 02/27/2026 | 2026 MN RSC Minnesota Regional Championship | |
| 5452 | Ali Daniels | 46.43 | 10 | B Min | BB: 42.89 (+3.54s | 7.6%) | Prince George\\\\\\'s Parks and Recr | 03/21/2026 | 2026 MAKO SPRING FLING | |
| 5453 | Jagger Kosch | 46.43 | 8 | B Min | BB: 42.89 (+3.54s | 7.6%) | Oly Swimming | 11/14/2025 | OLY Swimming Turkey Bowl | |
| 5454 | Eli Northington | 46.43 | 8 | B Min | BB: 42.89 (+3.54s | 7.6%) | Plymouth Canton Cruisers | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 5455 | Raphael Lynch | 46.43 | 9 | B Min | BB: 42.89 (+3.54s | 7.6%) | Westchester Aquatic Club | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 5456 | Kole Martin | 46.44 | 10 | B Min | BB: 42.89 (+3.55s | 7.6%) | Martinsville Marlins | 03/07/2026 | PYSA Champs 2026 | |
| 5457 | Lincoln Zolnierek | 46.45 | 10 | B Min | BB: 42.89 (+3.56s | 7.7%) | Annapolis Swim Club | 03/21/2026 | 2026 Maryland 9 10 B Championship Meet | |
| 5458 | Luca Yont-Schmitt | 46.45 | 10 | B Min | BB: 42.89 (+3.56s | 7.7%) | YMCA of Central Florida | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 5459 | Richard Li | 46.45 | 9 | B Min | BB: 42.89 (+3.56s | 7.7%) | Monocacy Aquatic Club | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 5460 | Aleksei Novik | 46.45 | 10 | B Min | BB: 42.89 (+3.56s | 7.7%) | Tac Titans | 02/14/2026 | 2026 TAC TITANS February Qualifier Meet | |
| 5461 | Johnathan Velez | 46.45 | 8 | B Min | BB: 42.89 (+3.56s | 7.7%) | Beach Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 5462 | Ethan Gu | 46.45 | 10 | B Min | BB: 42.89 (+3.56s | 7.7%) | Burlingame Aquatics | 10/11/2025 | SSF October Splash C B A+ Meet | |
| 5463 | Nicholas Ambar | 46.45 | 7 | B Min | BB: 42.89 (+3.56s | 7.7%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 5464 | Ivan Boukhanov | 46.45 | 10 | B Min | BB: 42.89 (+3.56s | 7.7%) | Gulf Coast Swim Team | 12/13/2025 | CCS Holiday Classic 2025 | |
| 5465 | Austin Xu | 46.46 | 10 | B Min | BB: 42.89 (+3.57s | 7.7%) | Nation\\\\\\'s Capital Swim Club | 01/17/2026 | PVS January Open 2026 Fairland | |
| 5466 | Evan Arkoub | 46.46 | 10 | B Min | BB: 42.89 (+3.57s | 7.7%) | Fast Falcons | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 5467 | Charles Engler | 46.46 | 9 | B Min | BB: 42.89 (+3.57s | 7.7%) | Metro Marlins Swim Team | 02/27/2026 | 2026 MN STRM Minnesota Regional Championship | |
| 5468 | Graham Yesquen | 46.46 | 10 | B Min | BB: 42.89 (+3.57s | 7.7%) | Centreville Swim Club | 12/12/2025 | 2025 MAKO HOLIDAY INVITATIONAL | |
| 5469 | Kaito Kinnaird | 46.46 | 10 | B Min | BB: 42.89 (+3.57s | 7.7%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 5470 | Ethan Miller | 46.46 | 9 | B Min | BB: 42.89 (+3.57s | 7.7%) | Occoquan Swimming | 11/21/2025 | 2025 Fall Festivus | |
| 5471 | Dashiel Herman | 46.46 | 9 | B Min | BB: 42.89 (+3.57s | 7.7%) | Aquaventure Riptides | 01/10/2026 | 2026 RMY Winter Invitational | |
| 5472 | Owen Zhu | 46.46 | 9 | B Min | BB: 42.89 (+3.57s | 7.7%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 5473 | Charles Mulliner | 46.47 | 9 | B Min | BB: 42.89 (+3.58s | 7.7%) | Streamline Aquatics | 11/07/2025 | 2025 ST SASA Sombrero Series Tres | |
| 5474 | Christian Oh | 46.47 | 9 | B Min | BB: 42.89 (+3.58s | 7.7%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 5475 | Gabriel Opperman | 46.47 | 10 | B Min | BB: 42.89 (+3.58s | 7.7%) | Wtrc Sharks | 02/20/2026 | 2026 OH WAVE SC Regional Championships | |
| 5476 | Roman Moore | 46.48 | 8 | B Min | BB: 42.89 (+3.59s | 7.7%) | YMCA of Northwest North Caroli | 12/05/2025 | 2025 TYDE Winter Championship | |
| 5477 | Theodore Gardner | 46.48 | 10 | B Min | BB: 42.89 (+3.59s | 7.7%) | SwimMAC Carolina | 01/23/2026 | 2026 NC SwimMAC Battle Of The Crown | |
| 5478 | William McDowell | 46.48 | 8 | B Min | BB: 42.89 (+3.59s | 7.7%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 5479 | Kauri Katene | 46.48 | 7 | B Min | BB: 42.89 (+3.59s | 7.7%) | Badger Swim Club,Inc. | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 5480 | Aadyant Agrawal | 46.48 | 8 | B Min | BB: 42.89 (+3.59s | 7.7%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 5481 | John Miller | 46.48 | 10 | B Min | BB: 42.89 (+3.59s | 7.7%) | YMCA OF Western North Carolina | 09/27/2025 | 2025 WNCY October Opener Copied Copied | |
| 5482 | Leonardo DiVincenzo | 46.49 | 10 | B Min | BB: 42.89 (+3.60s | 7.7%) | Blue Tide Aquatics | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 5483 | Charles Baccich | 46.49 | 10 | B Min | BB: 42.89 (+3.60s | 7.7%) | Team Charlotte Swimming | 02/14/2026 | 2026 SwimMAC Qualifier Festival | |
| 5484 | Adam Alqaqaa | 46.49 | 9 | B Min | BB: 42.89 (+3.60s | 7.7%) | Front Range Barracudas | 01/16/2026 | 2026 CO CUDA Classic | |
| 5485 | Owen Keiling | 46.49 | 10 | B Min | BB: 42.89 (+3.60s | 7.7%) | Life Time Colorado Swim Club | 12/14/2025 | 2025 CO FORM Winter Open | |
| 5486 | Austin Houser | 46.49 | 7 | B Min | BB: 42.89 (+3.60s | 7.7%) | Blue Water Otters | 03/07/2026 | 2026 Michigan YMCA State Championship | |
| 5487 | Oliver Catala | 46.49 | 10 | B Min | BB: 42.89 (+3.60s | 7.7%) | Gulliver Swim Club | 12/06/2025 | 2025 Pompano Beach Santa Claus Meet | |
| 5488 | Jesper Lin | 46.49 | 10 | B Min | BB: 42.89 (+3.60s | 7.7%) | Trident Aquatic Club | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 5489 | Jayden Yu | 46.49 | 9 | B Min | BB: 42.89 (+3.60s | 7.7%) | DeAnza Cupertino Aquatics | 03/28/2026 | LAMV C B A+ Meet | |
| 5490 | Bennett Haselfeld | 46.49 | 9 | B Min | BB: 42.89 (+3.60s | 7.7%) | Issaquah Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 5491 | Miles Wang | 46.50 | 9 | B Min | BB: 42.89 (+3.61s | 7.8%) | Pleasanton Seahawks | 10/18/2025 | PC SRVA SCY B BB+ Meet | |
| 5492 | Samuel Pratt | 46.50 | 8 | B Min | BB: 42.89 (+3.61s | 7.8%) | United Swim Club | 02/21/2026 | 2026 USC Last Chance | |
| 5493 | Benjamin Lahaye-Biddle | 46.50 | 9 | B Min | BB: 42.89 (+3.61s | 7.8%) | Nova of Virginia | 01/09/2026 | NOVA New Year S Kick Off | |
| 5494 | Theo Ferrufino Paz | 46.50 | 10 | B Min | BB: 42.89 (+3.61s | 7.8%) | Crimson Aquatics | 03/06/2026 | 2026 NE CRIM March Trials Finals Meet | |
| 5495 | Dexter Rhodes | 46.50 | 10 | B Min | BB: 42.89 (+3.61s | 7.8%) | Poseidon Aquatic Club | 11/16/2025 | 2025 PN PAC Q Meet | |
| 5496 | Alex Chatfield | 46.51 | 9 | B Min | BB: 42.89 (+3.62s | 7.8%) | Annapolis Swim Club | 11/07/2025 | 2025 CAC 5th Annual Zachary Spain Memorial Me | |
| 5497 | Van Calicchio | 46.51 | 9 | B Min | BB: 42.89 (+3.62s | 7.8%) | Plantation Swim Team | 10/03/2025 | Early October Central Park Series | |
| 5498 | Yihao Wu | 46.51 | 8 | B Min | BB: 42.89 (+3.62s | 7.8%) | Laker Swim | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 5499 | Aldon Rafferty | 46.51 | 10 | B Min | BB: 42.89 (+3.62s | 7.8%) | Middlebury Aquatics Club | 11/07/2025 | 2025 NE UVAC Dorsi Raynolds Memorial Meet C | |
| 5500 | Matthew Monteleone | 46.51 | 9 | B Min | BB: 42.89 (+3.62s | 7.8%) | Raleigh Swimming Association | 10/11/2025 | 2025 CAT Rock The Block | |
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.