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 | Andres Velazquez | 40.86 | 9 | AA Min | AAA: 38.99 (+1.87s | 4.6%) | Pro Swimming | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 352 | Owen Nguyen | 40.88 | 10 | AA Min | AAA: 38.99 (+1.89s | 4.6%) | Mission Viejo Nadadores | 06/11/2026 | 2026 SCS June AG Invite | |
| 353 | Johnathan Wang | 40.88 | 9 | AA Min | AAA: 38.99 (+1.89s | 4.6%) | Alto Swim Club | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 354 | Leo Liao | 40.90 | 10 | AA Min | AAA: 38.99 (+1.91s | 4.7%) | Alto Swim Club | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 355 | Mason Sovich | 40.90 | 9 | AA Min | AAA: 38.99 (+1.91s | 4.7%) | Olympic Cascade Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 356 | William Jiang | 40.90 | 8 | AA Min | AAA: 38.99 (+1.91s | 4.7%) | Irvine Novaquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 357 | Jeffrey Moon | 40.90 | 10 | AA Min | AAA: 38.99 (+1.91s | 4.7%) | Commerce Aquatics Swim Team | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 358 | Clayton Chester | 40.91 | 10 | AA Min | AAA: 38.99 (+1.92s | 4.7%) | Heartland Swim Assoc | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 359 | Shay Jain | 40.92 | 9 | AA Min | AAA: 38.99 (+1.93s | 4.7%) | Palo Alto Stanford Aquatics | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 360 | Logan Fischer | 40.93 | 10 | AA Min | AAA: 38.99 (+1.94s | 4.7%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 361 | Bryce Morales | 40.93 | 9 | AA Min | AAA: 38.99 (+1.94s | 4.7%) | Jcc Waves | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 362 | Connor Li | 40.94 | 9 | AA Min | AAA: 38.99 (+1.95s | 4.8%) | Pacific Dragons Swim Team | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 363 | Leo Williams | 40.95 | 9 | AA Min | AAA: 38.99 (+1.96s | 4.8%) | Marlins Of Raleigh | 04/25/2026 | 2026 NCAC Quad Meet | |
| 364 | Summit Bergman | 40.96 | 10 | AA Min | AAA: 38.99 (+1.97s | 4.8%) | Life Time Southeast Swim Team | 06/26/2026 | 2026 SE Richard Quick Invitational | |
| 365 | Caleb Harrison | 40.96 | 10 | AA Min | AAA: 38.99 (+1.97s | 4.8%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | |
| 366 | Isaac Camenisch | 40.97 | 10 | AA Min | AAA: 38.99 (+1.98s | 4.8%) | Highbridge Aquatics | 06/05/2026 | 25th Annual CLPR David Webb Meet | |
| 367 | Aaron Kim | 40.99 | 10 | AA Min | AAA: 38.99 (+2.00s | 4.9%) | EL Paso Border Land Swim Team | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 368 | Qurtis Lo | 40.99 | 10 | AA Min | AAA: 38.99 (+2.00s | 4.9%) | Marlins Of Raleigh | 07/16/2026 | 2026 NCS LC AG Championships | |
| 369 | Ethan Hartley | 40.99 | 10 | AA Min | AAA: 38.99 (+2.00s | 4.9%) | Quest Swimming | 05/02/2026 | BASS Jim Frye Memorial Invitational May 2026 | |
| 370 | Bill Curran | 41.00 | 9 | AA Min | AAA: 38.99 (+2.01s | 4.9%) | Revolution Swim Club | 07/17/2026 | 2026 NE MST ESC LCM 12 Under Championship | |
| 371 | Jayden Chang | 41.01 | 10 | AA Min | AAA: 38.99 (+2.02s | 4.9%) | Maywood Sparks Swim Team | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 372 | Sawyer Ludeker | 41.03 | 10 | AA Min | AAA: 38.99 (+2.04s | 5.0%) | Stingrays Swim Team | 07/16/2026 | 2026 Virginia Swimming LC Age Group Champions | |
| 373 | Yu Xu | 41.03 | 10 | AA Min | AAA: 38.99 (+2.04s | 5.0%) | SwimMAC Carolina | 07/24/2026 | 2026 NC SwimMAC LC Summer Sun Sational | |
| 374 | Samuel Leven | 41.04 | 10 | AA Min | AAA: 38.99 (+2.05s | 5.0%) | Unattached | 06/10/2026 | Splash Into Summer | |
| 375 | Hawx Hansen | 41.04 | 10 | AA Min | AAA: 38.99 (+2.05s | 5.0%) | Utah Zone Team | 08/05/2026 | 2026 Western Zone Age Group Championships | |
| 376 | Joseph Sweitzer | 41.06 | 10 | AA Min | AAA: 38.99 (+2.07s | 5.0%) | Portland Porpoise Swim Club | 07/10/2026 | 2026 NE NSSC July Trials Finals @ Colby | |
| 377 | Ben Krizay | 41.06 | 10 | AA Min | AAA: 38.99 (+2.07s | 5.0%) | Southwest Stars Swim Club | 07/09/2026 | 2026 FL Summer Age Group Championships | |
| 378 | Daniel Thorpe | 41.07 | 10 | AA Min | AAA: 38.99 (+2.08s | 5.1%) | Aquajets Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 379 | Bennett Upton | 41.09 | 9 | AA Min | AAA: 38.99 (+2.10s | 5.1%) | Greensboro Community YMCA | 07/16/2026 | 2026 NCS LC AG Championships | |
| 380 | William Bradley | 41.10 | 9 | A Min | AA: 41.09 (+0.01s | 0.0%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 381 | Hays Wilson | 41.10 | 9 | A Min | AA: 41.09 (+0.01s | 0.0%) | Nashville Aquatic Club | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 382 | Remington Tucker | 41.12 | 10 | A Min | AA: 41.09 (+0.03s | 0.1%) | Huntsville Swim Association | 07/17/2026 | 2026 SE Southeastern Summer LC Championships | |
| 383 | Eric Zeng | 41.12 | 9 | A Min | AA: 41.09 (+0.03s | 0.1%) | Canyons Aquatic Club | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 384 | Nicholas Galvin | 41.12 | 10 | A Min | AA: 41.09 (+0.03s | 0.1%) | Sarasota Sharks | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 385 | Owen McDonald | 41.13 | 10 | A Min | AA: 41.09 (+0.04s | 0.1%) | Houston Hydra | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | |
| 386 | Luke Wang | 41.13 | 9 | A Min | AA: 41.09 (+0.04s | 0.1%) | Flatiron Athletic Club | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 387 | Chase Turlington | 41.15 | 10 | A Min | AA: 41.09 (+0.06s | 0.1%) | Tac Titans | 07/24/2026 | 2026 TAC TITANS Closeout Meet | |
| 388 | Nicolas Martinez | 41.16 | 10 | A Min | AA: 41.09 (+0.07s | 0.2%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 389 | Keegan Bertoia | 41.16 | 10 | A Min | AA: 41.09 (+0.07s | 0.2%) | Streamline Aquatics | 07/09/2026 | 2026 ST NIST LC STAGS | |
| 390 | Jacob Liu | 41.16 | 10 | A Min | AA: 41.09 (+0.07s | 0.2%) | Trident Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 391 | August Rothgerber | 41.18 | 10 | A Min | AA: 41.09 (+0.09s | 0.2%) | Lakeside Swim Team | 07/16/2026 | 2026 Kentucky Swimming LC Championship 2 Co | |
| 392 | Jett Manion | 41.18 | 10 | A Min | AA: 41.09 (+0.09s | 0.2%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | |
| 393 | Ashton Yang | 41.19 | 10 | A Min | AA: 41.09 (+0.10s | 0.2%) | Southwest Stars Swim Club | 07/09/2026 | 2026 FL Summer Age Group Championships | |
| 394 | Mark Taylor | 41.20 | 10 | A Min | AA: 41.09 (+0.11s | 0.3%) | Seal Beach Swim Club | 06/11/2026 | ARMADA 2026 SCS June AG Invite | |
| 395 | Ethan Wu | 41.21 | 10 | A Min | AA: 41.09 (+0.12s | 0.3%) | Swim Torrance | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 396 | Asher Knapp | 41.21 | 10 | A Min | AA: 41.09 (+0.12s | 0.3%) | Tide Swimming | 06/05/2026 | 2026 TIDE Schools Out Classic | |
| 397 | William Haines | 41.22 | 10 | A Min | AA: 41.09 (+0.13s | 0.3%) | North Shore Swim Club | 07/31/2026 | 2026 NE NSSC New England Summer Championship | |
| 398 | Ilan Rattner | 41.24 | 9 | A Min | AA: 41.09 (+0.15s | 0.4%) | Sunnyvale Swim Club | 07/17/2026 | 2026 Adam Szmidt Memorial PC Summer AG Champs | |
| 399 | Daniel Perekotiy | 41.24 | 10 | A Min | AA: 41.09 (+0.15s | 0.4%) | Mission Viejo Nadadores | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 400 | Nathan Applegate | 41.24 | 10 | A Min | AA: 41.09 (+0.15s | 0.4%) | Unattached | 08/05/2026 | 2026 Western Zone Age Group 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.