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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4551 | Sebastian Perez | 45.86 | 10 | B Min | BB: 42.89 (+2.97s | 6.5%) | Unattached | 01/16/2026 | 2026 Vector Security Polar Plunge Meet | |
| 4552 | Lane Hutmacher | 45.86 | 10 | B Min | BB: 42.89 (+2.97s | 6.5%) | Watertown Area Swim Club | 07/10/2025 | 2025 Milbank Swim Meet | |
| 4553 | William Hamric | 45.86 | 10 | B Min | BB: 42.89 (+2.97s | 6.5%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 4554 | Clyde Olver | 45.86 | 9 | B Min | BB: 42.89 (+2.97s | 6.5%) | Nation\\\\\\'s Capital Swim Club | 10/18/2025 | 2025 NCAP Autumn Kingfish Splash | |
| 4555 | Baylee Gurczynski | 45.87 | 9 | B Min | BB: 42.89 (+2.98s | 6.5%) | Old Dominion Aquatic Club | 02/07/2026 | 2026 8 And Under Southeastern District Champs | |
| 4556 | Carlo Fumei | 45.87 | 9 | B Min | BB: 42.89 (+2.98s | 6.5%) | Atlantis Swimming | 10/17/2025 | 2025 OLY Fall Classic | |
| 4557 | Julian Gardner | 45.87 | 10 | B Min | BB: 42.89 (+2.98s | 6.5%) | Metro Surge Aquatic Club | 01/17/2026 | PVS January Open 2026 Fairland | |
| 4558 | Norman Matthew | 45.87 | 10 | B Min | BB: 42.89 (+2.98s | 6.5%) | Edina Swim Club | 10/05/2025 | 2025 EDI October Sunday At The Races | |
| 4559 | Lyle Arnold | 45.87 | 10 | B Min | BB: 42.89 (+2.98s | 6.5%) | Piranha Swimming | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 4560 | Frank Rodriguez | 45.88 | 10 | B Min | BB: 42.89 (+2.99s | 6.5%) | Memphis Tiger Swimming | 11/21/2025 | 2025 Tiger Turkey Tumble | |
| 4561 | Joseph Kenney | 45.88 | 10 | B Min | BB: 42.89 (+2.99s | 6.5%) | Nocatee Bluetide Swim Team | 07/26/2025 | 2025 NFSSL Champs | |
| 4562 | Mikhail Kulpanovich | 45.88 | 9 | B Min | BB: 42.89 (+2.99s | 6.5%) | YMCA of the North Shore Sharks | 11/14/2025 | 2025 NE CRIM November Specialty Copied C | |
| 4563 | Shaan Chenam | 45.88 | 9 | B Min | BB: 42.89 (+2.99s | 6.5%) | Aquazot Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 4564 | Easton Voithofer | 45.88 | 8 | B Min | BB: 42.89 (+2.99s | 6.5%) | Com Aquatics | 11/14/2025 | 2025 ST AAAA AH PW NC Invite | |
| 4565 | Riley Chattergoon | 45.88 | 10 | B Min | BB: 42.89 (+2.99s | 6.5%) | Bgc-N. Westchester Marlins | 12/05/2025 | 2025 MR BGNW December 14 Under Invitational | |
| 4566 | Alejandro Rigual Osorno | 45.88 | 10 | B Min | BB: 42.89 (+2.99s | 6.5%) | Fast Falcons | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 4567 | Eugene Walsh | 45.88 | 7 | B Min | BB: 42.89 (+2.99s | 6.5%) | Riptide Swim Team | 02/14/2026 | 2026 CO ACES Winter Open | |
| 4568 | Jameson McCall | 45.89 | 10 | B Min | BB: 42.89 (+3.00s | 6.5%) | COSA Swimming | 03/14/2026 | 2026 CO Zone 5 Championships | |
| 4569 | Owen King | 45.89 | 10 | B Min | BB: 42.89 (+3.00s | 6.5%) | Edina Swim Club | 05/09/2026 | 2026 MN EDI Gator Speedo Invite | |
| 4570 | Advik Krishnan | 45.89 | 9 | B Min | BB: 42.89 (+3.00s | 6.5%) | Anglerfish Aquatics | 12/12/2025 | 2025 NE CRIM Frosty Frenzy Trials Finals | |
| 4571 | Henry Conner | 45.89 | 9 | B Min | BB: 42.89 (+3.00s | 6.5%) | Mariemont Ohio Swim Team | 02/19/2026 | 2026 OH RAYS SC Regional Championships | |
| 4572 | Jeremiah Veloso | 45.89 | 10 | B Min | BB: 42.89 (+3.00s | 6.5%) | Swim Streamline at Northampton | 11/16/2024 | 2024 NOCH Turkey Classic | |
| 4573 | Logan Brooks | 45.90 | 9 | B Min | BB: 42.89 (+3.01s | 6.6%) | Nation\\\\\\'s Capital Swim Club | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 4574 | Gabriel Fabiano | 45.90 | 9 | B Min | BB: 42.89 (+3.01s | 6.6%) | Sporting Jax Aquatic Club | 10/25/2025 | 2025 SJAC Halloween Invitational | |
| 4575 | Charles Sutton | 45.90 | 9 | B Min | BB: 42.89 (+3.01s | 6.6%) | Rockville Montgomery Swim Club | 03/20/2026 | 2026 RMSC Spring Finale | |
| 4576 | Andrew Papendorf | 45.90 | 10 | B Min | BB: 42.89 (+3.01s | 6.6%) | Skagit Valley YMCA Tritons | 05/09/2026 | 2026 PN BBST Take A Chance Invite Approved | |
| 4577 | Aiden Kiatrungrit | 45.90 | 10 | B Min | BB: 42.89 (+3.01s | 6.6%) | South San Francisco Aquatics | 11/14/2025 | PSL Pumpkin Spice Lovers 25 129 | |
| 4578 | Camden Knutson | 45.90 | 10 | B Min | BB: 42.89 (+3.01s | 6.6%) | River Falls Swim Club | 05/02/2026 | 2026 MN RFSC Spring Invite | |
| 4579 | Thomas Morris | 45.90 | 10 | B Min | BB: 42.89 (+3.01s | 6.6%) | Marlins Of Raleigh | 03/14/2026 | 2026 MOR Reagan Martin Rocks Swim Meet | |
| 4580 | Grant Levenson | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 4581 | Sterling McCraw | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | City of Mobile Swim Associatio | 10/04/2025 | 2025 CMSA Vance Rose Invitational | |
| 4582 | Jackson Scott | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Coast Gaurd Blue Dolphins | 01/09/2026 | 2026 757swim Splash And Dash | |
| 4583 | William MacDonald | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 4584 | Sebastian Alfonso | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Walnut Creek Aquabears | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 4585 | Owen Lee | 45.91 | 9 | B Min | BB: 42.89 (+3.02s | 6.6%) | Chinook Aquatic Club | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 4586 | Luke Jeong | 45.91 | 9 | B Min | BB: 42.89 (+3.02s | 6.6%) | Auburn Aquatics | 10/03/2025 | 2025 SE War Eagle Invitational | |
| 4587 | Jayce Jenkins | 45.91 | 10 | B Min | BB: 42.89 (+3.02s | 6.6%) | Amarillo Swim Team | 07/26/2025 | 2025 ST SCY SurgeFest | |
| 4588 | Leo Yang | 45.92 | 10 | B Min | BB: 42.89 (+3.03s | 6.6%) | YMCA Fairfax County Reston | 11/08/2025 | 2025 MAKO GOBBLE GOBBLE INVITATIONAL | |
| 4589 | Finn Blayney | 45.92 | 8 | B Min | BB: 42.89 (+3.03s | 6.6%) | Machine Aquatics | 02/20/2026 | 2026 Machine Qualifier | |
| 4590 | Asher Gersick | 45.92 | 10 | B Min | BB: 42.89 (+3.03s | 6.6%) | Lamarlins Swim Team, Inc. | 06/12/2026 | 2026 CO Lamarlins Invitational | |
| 4591 | Samuel Zhou | 45.92 | 10 | B Min | BB: 42.89 (+3.03s | 6.6%) | Bay Club Panthers | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 4592 | Dominic Coyle | 45.93 | 9 | B Min | BB: 42.89 (+3.04s | 6.6%) | Cardinal and Gold Aquatics | 11/14/2025 | Harvest Festival 2025 | |
| 4593 | Joseph Sheppard | 45.93 | 9 | B Min | BB: 42.89 (+3.04s | 6.6%) | Tide Swimming | 10/10/2025 | 2025 TIDE Atlantic Coast Clash Copied | |
| 4594 | Zachariah Sivaraj | 45.93 | 8 | B Min | BB: 42.89 (+3.04s | 6.6%) | Sawtooth Aquatic Club | 12/04/2025 | 2025 Holiday Swim Festival | |
| 4595 | Adrian Gutierrez | 45.93 | 9 | B Min | BB: 42.89 (+3.04s | 6.6%) | Gulliver Swim Club | 12/06/2025 | 2025 Pompano Beach Santa Claus Meet | |
| 4596 | Brady Burnsky | 45.94 | 7 | B Min | BB: 42.89 (+3.05s | 6.6%) | Rockville Montgomery Swim Club | 12/06/2025 | 2025 Reindeer Mini Meet | |
| 4597 | David Whalen | 45.94 | 9 | B Min | BB: 42.89 (+3.05s | 6.6%) | Dexter Community Aquatic Club | 02/14/2026 | 2026 Best ValenTimes Meet | |
| 4598 | Hongxiao Chen | 45.94 | 10 | B Min | BB: 42.89 (+3.05s | 6.6%) | Holyoke YMCA Vikings | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 4599 | Davis Starkes | 45.95 | 10 | B Min | BB: 42.89 (+3.06s | 6.7%) | Capital Area Aquatics | 09/19/2025 | 2025 ST AQTX Round Rock Unclassified | |
| 4600 | Aiden Boudjemaa | 45.95 | 8 | B Min | BB: 42.89 (+3.06s | 6.7%) | Machine Aquatics | 02/20/2026 | 2026 Machine Qualifier | |
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.