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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4451 | Angus Brownlie | 45.71 | 10 | B Min | BB: 42.89 (+2.82s | 6.2%) | Htx Swims | 10/18/2024 | BATS 2024 October Invite | |
| 4452 | Matthew Romano | 45.71 | 8 | B Min | BB: 42.89 (+2.82s | 6.2%) | 92ny Flying Dolphins | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 4453 | Levi Durrett | 45.71 | 9 | B Min | BB: 42.89 (+2.82s | 6.2%) | Old Dominion Aquatic Club | 01/10/2026 | ODAC January 2026 Rising Stars Meet | |
| 4454 | Bode Malik | 45.71 | 8 | B Min | BB: 42.89 (+2.82s | 6.2%) | Capital of Texas Aquatics | 10/26/2025 | 2025 ST TXLA 10 U Fall Kick Off | |
| 4455 | Leif Osborne | 45.71 | 9 | B Min | BB: 42.89 (+2.82s | 6.2%) | Bay Club Aquatics | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 4456 | Dalton Dodson | 45.72 | 9 | B Min | BB: 42.89 (+2.83s | 6.2%) | Hydra Aquatics | 02/27/2026 | 2026 OH BSC SC Regional Championships | |
| 4457 | Sean Smith | 45.72 | 10 | B Min | BB: 42.89 (+2.83s | 6.2%) | Long Island Aquatic Club | 11/21/2025 | 2025 MR LIAC Thanksgiving Invite | |
| 4458 | Lucas Hernandez | 45.72 | 10 | B Min | BB: 42.89 (+2.83s | 6.2%) | Bellevue Club Swim Team | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 4459 | Jonathan Moore | 45.73 | 9 | B Min | BB: 42.89 (+2.84s | 6.2%) | Accokeek Stroke Technique Swim | 02/13/2026 | 39th Black History Swim Meet | |
| 4460 | Mark Pavlenko | 45.73 | 9 | B Min | BB: 42.89 (+2.84s | 6.2%) | Eastside Aquatic Swim Team | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 4461 | Nathaniel Haley | 45.73 | 9 | B Min | BB: 42.89 (+2.84s | 6.2%) | North Shore Swim Club | 04/04/2026 | 2026 NE NSSC Sprint Meet | |
| 4462 | Jaxon Abadam | 45.73 | 8 | B Min | BB: 42.89 (+2.84s | 6.2%) | Potomac Marlins | 03/20/2026 | March Madness 2026 | |
| 4463 | Parker Blaine | 45.73 | 9 | B Min | BB: 42.89 (+2.84s | 6.2%) | Montrose Marlins Swim Club | 04/17/2026 | 2026 CO Jolean Scott Memorial | |
| 4464 | Izaak Ambrose | 45.73 | 10 | B Min | BB: 42.89 (+2.84s | 6.2%) | Katy Aquatic Team For Youth | 02/21/2025 | 2025 Gulf 12 Under Champs (KATY) | |
| 4465 | Matthew Benton | 45.73 | 10 | B Min | BB: 42.89 (+2.84s | 6.2%) | Oyster River Otters | 03/20/2026 | 2026 NE ORO TSSA Champs | |
| 4466 | Thomas Boernke | 45.73 | 10 | B Min | BB: 42.89 (+2.84s | 6.2%) | Nampa Swim Team | 10/11/2025 | 2025 Koudelka Memorial | |
| 4467 | Ayden Peng | 45.73 | 9 | B Min | BB: 42.89 (+2.84s | 6.2%) | Raleigh Swimming Association | 01/16/2026 | 2026 RSA Winter Tri | |
| 4468 | Samuel Rogers | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | Oyster River Otters | 01/16/2026 | 2026 NE UVAC Bronze Championships | |
| 4469 | Nathaniel Chiang | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | Issaquah Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 4470 | Thomas Zeller | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | SwimRVA | 10/10/2025 | 2025 TIDE Atlantic Coast Clash Copied | |
| 4471 | Nicholas Wang | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | The Fish | 03/20/2026 | 26th Annual Spring Championships | |
| 4472 | Jeffrey Krell | 45.74 | 9 | B Min | BB: 42.89 (+2.85s | 6.2%) | YMCA of Virginia\\\\\\'s Blue Ridge | 03/07/2026 | PYSA Champs 2026 | |
| 4473 | Ian Benrey | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | SwimFast | 12/05/2025 | 2025 FG Holiday Champ | |
| 4474 | Thomas Russo | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | Bgc-N. Westchester Marlins | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 4475 | Brody Kershaw | 45.74 | 10 | B Min | BB: 42.89 (+2.85s | 6.2%) | Rima United | 10/03/2025 | 2025 NE KING Pink Pentahlon Copied | |
| 4476 | Timothy Huang | 45.74 | 9 | B Min | BB: 42.89 (+2.85s | 6.2%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 4477 | Raylan Raphael | 45.75 | 9 | B Min | BB: 42.89 (+2.86s | 6.3%) | Sailfish | 01/17/2026 | 2026 ST AQTX B Champs North | |
| 4478 | Alfonso Salinas | 45.75 | 10 | B Min | BB: 42.89 (+2.86s | 6.3%) | EL Paso Border Land Swim Team | 02/22/2026 | 2026 BD SC Jr Border Championship | |
| 4479 | Reed Song | 45.75 | 9 | B Min | BB: 42.89 (+2.86s | 6.3%) | Columbia Aquatics Association | 01/03/2026 | 2026 ASTS Invitational | |
| 4480 | Alexander Yang | 45.75 | 10 | B Min | BB: 42.89 (+2.86s | 6.3%) | Long Island Aquatic Club | 11/16/2025 | 2025 MR LIAC Fall Festival Invitational | |
| 4481 | Ryker Todd | 45.75 | 9 | B Min | BB: 42.89 (+2.86s | 6.3%) | Monterey Bay Swim Club | 10/25/2025 | 2025 Gil Williams Memorial Halloween Meet | |
| 4482 | John Murray | 45.75 | 10 | B Min | BB: 42.89 (+2.86s | 6.3%) | Greater Lowell Family YMCA | 01/24/2026 | 2026 NE NSSC Snowman Sprints | |
| 4483 | Joshua Cho | 45.75 | 10 | B Min | BB: 42.89 (+2.86s | 6.3%) | Life Time Southeast | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 4484 | Amir Arfaoui | 45.75 | 9 | B Min | BB: 42.89 (+2.86s | 6.3%) | Sarasota Sharks | 04/18/2026 | CCS Spring Classic 2026 | |
| 4485 | Konstantin Zhou | 45.76 | 9 | B Min | BB: 42.89 (+2.87s | 6.3%) | Cross Island YMCA Barracudas | 11/28/2025 | 2025 MR LIE Thanksgiving Invitational | |
| 4486 | Kellan Auguste | 45.76 | 10 | B Min | BB: 42.89 (+2.87s | 6.3%) | Phoenix Aquatic Club | 11/08/2025 | 2025 MR PAC Maria Parmanan Invitational | |
| 4487 | Henry Oracki | 45.76 | 10 | B Min | BB: 42.89 (+2.87s | 6.3%) | Nation\\\\\\'s Capital Swim Club | 10/10/2025 | 2025 PV October Open Fairland | |
| 4488 | Avery Sawyer | 45.76 | 9 | B Min | BB: 42.89 (+2.87s | 6.3%) | Nitro Swimming | 01/31/2026 | 2026 ST NTRO Fiery Flames | |
| 4489 | Fennick Brown | 45.77 | 9 | B Min | BB: 42.89 (+2.88s | 6.3%) | Zeus Swim Team | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 4490 | Chun Huang | 45.77 | 9 | B Min | BB: 42.89 (+2.88s | 6.3%) | Alamo Area Aquatic Association | 09/28/2024 | 2024 ST AAAA NE September Splash | |
| 4491 | Lincoln Muncie | 45.77 | 10 | B Min | BB: 42.89 (+2.88s | 6.3%) | Spokane Waves Aquatic Team | 02/08/2025 | Cougar Winter Classic | |
| 4492 | Payne Osborne | 45.77 | 10 | B Min | BB: 42.89 (+2.88s | 6.3%) | Greater Omaha Aquatics Leopard | 02/20/2026 | 2026 MW Midwestern Age Group Short Course | |
| 4493 | Andrew Mastilenko | 45.77 | 10 | B Min | BB: 42.89 (+2.88s | 6.3%) | Lakeshore Swim Club | 02/19/2026 | 2026 OH Cleveland SC Regional Championships | |
| 4494 | Theodore Kim | 45.78 | 10 | B Min | BB: 42.89 (+2.89s | 6.3%) | Machine Aquatics | 11/14/2025 | 2025 PV November Open Franconia | |
| 4495 | Nash King | 45.78 | 9 | B Min | BB: 42.89 (+2.89s | 6.3%) | North Baltimore Aquatic Club | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 4496 | Dallas Smith | 45.78 | 9 | B Min | BB: 42.89 (+2.89s | 6.3%) | YMCA East Hampton Hurricanes | 10/11/2025 | 2025 MR TVSC Ann Wycoff Memorial Swim Meet | |
| 4497 | Seif Nimri | 45.78 | 9 | B Min | BB: 42.89 (+2.89s | 6.3%) | Tollefson Swimming | 02/01/2026 | 2026 Little Blue Penguin Pentathlon | |
| 4498 | Odin Yu | 45.78 | 7 | B Min | BB: 42.89 (+2.89s | 6.3%) | Xtreme Swim Club | 02/06/2026 | 2026 NE CRIM Last Chance Meet | |
| 4499 | Henry Li | 45.78 | 10 | B Min | BB: 42.89 (+2.89s | 6.3%) | Eastern Nassau Aquatic Club | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 4500 | Niall Lalomio | 45.78 | 8 | B Min | BB: 42.89 (+2.89s | 6.3%) | Edina Swim Club | 05/09/2026 | 2026 MN EDI Gator Speedo 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.