USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | Yifeng Feng | 40.98 | 11 | A Min | AA: 40.19 (+0.79s | 1.9%) | Charles River Aquatics | 12/05/2025 | 2025 NE UVAC Winter Classic | |
| 402 | Osvalt Weng Brouard | 40.98 | 10 | A Min | AA: 40.19 (+0.79s | 1.9%) | Long Island Aquatic Club | 01/16/2026 | 2026 MR NFS 43rd Annual Dr MLK Jr Invite | |
| 403 | Mason Leal | 40.99 | 10 | A Min | AA: 40.19 (+0.80s | 2.0%) | Metro Aquatic Club of Miami | 11/21/2025 | 2025 Gulliver Gobble Gobble Nov Last Chance | |
| 404 | Lucas Jain | 40.99 | 10 | A Min | AA: 40.19 (+0.80s | 2.0%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 405 | Ziqian Liu | 41.00 | 9 | A Min | AA: 40.19 (+0.81s | 2.0%) | Tac Titans | 01/16/2026 | 2026 Vector Security Polar Plunge Meet | |
| 406 | Aaron Yang | 41.02 | 9 | A Min | AA: 40.19 (+0.83s | 2.0%) | Tac Titans | 10/18/2025 | 2025 TAC TITANS 12 U Tri Meet | |
| 407 | Izaan Syed | 41.02 | 10 | A Min | AA: 40.19 (+0.83s | 2.0%) | Tac Titans | 02/14/2026 | 2026 TAC TITANS February Qualifier Meet | |
| 408 | Timothy Park | 41.03 | 10 | A Min | AA: 40.19 (+0.84s | 2.0%) | Phoenix Aquatic Club | 12/06/2025 | 2025 MR PAC 12 U Holiday Invitational | |
| 409 | Flynn Chen | 41.03 | 9 | A Min | AA: 40.19 (+0.84s | 2.0%) | DeAnza Cupertino Aquatics | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 410 | Gavin Mahrous | 41.03 | 9 | A Min | AA: 40.19 (+0.84s | 2.0%) | Sioux Falls Swim Team | 01/23/2026 | SFST SD 2026 January Invite | |
| 411 | Wyatt Weakley | 41.03 | 10 | A Min | AA: 40.19 (+0.84s | 2.0%) | Livonia Community Swim Club | 10/18/2025 | Romp In The Swamp Knockout Edition | |
| 412 | Finn McGuire | 41.04 | 10 | A Min | AA: 40.19 (+0.85s | 2.1%) | Swim Florida | 02/07/2026 | 2026 GCST WINTER OPEN | |
| 413 | Ezra Landsman | 41.04 | 10 | A Min | AA: 40.19 (+0.85s | 2.1%) | The Fish | 01/31/2026 | The 2026 Super FISH Bowl XVI | |
| 414 | Benjamin Li | 41.04 | 10 | A Min | AA: 40.19 (+0.85s | 2.1%) | Seattle Metropolitan Aquatic C | 12/12/2025 | 2025 PN 14 Under Short Course Champs APPROVED | |
| 415 | Marshall Kohout | 41.04 | 10 | A Min | AA: 40.19 (+0.85s | 2.1%) | Unattached | 01/09/2026 | 2026 IA Midwest All Stars 09Jan2026 Midwestern | |
| 416 | Chukwuma Chiedozi | 41.06 | 10 | A Min | AA: 40.19 (+0.87s | 2.1%) | Rogue Rapids | 11/21/2025 | 2025 Rogue Rapids Sofia Marks Invitational | |
| 417 | Khaled Elbanna | 41.07 | 10 | A Min | AA: 40.19 (+0.88s | 2.1%) | Nation\\\\\\'s Capital Swim Club | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 418 | Felix Doerfler | 41.07 | 11 | A Min | AA: 40.19 (+0.88s | 2.1%) | YMCA East Hampton Hurricanes | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
| 419 | Jacob YU | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | Twisters Swim Club | 01/24/2026 | 2026 MR FLY Fran Schnarr Sprint Pentathlon Me | |
| 420 | Allen Chen | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | Seattle Metropolitan Aquatic C | 01/31/2026 | 2026 PN KING Beast IMX IMR Invitational Appr | |
| 421 | Tristan Keough | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | YMCA of the Triangle Area Swim | 12/05/2025 | 2025 TYDE Winter Championship | |
| 422 | Finnegan Riley | 41.09 | 10 | A Min | AA: 40.19 (+0.90s | 2.2%) | Old Dominion Aquatic Club | 12/11/2025 | 2025 East Coast WinterFest | |
| 423 | Johann Mancenido | 41.11 | 10 | A Min | AA: 40.19 (+0.92s | 2.2%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 424 | Francisco Santiago | 41.11 | 10 | A Min | AA: 40.19 (+0.92s | 2.2%) | San Juan Carib� | 11/21/2025 | 2025 RAFC Almost Turkey Invitational | |
| 425 | Lee Pham | 41.11 | 10 | A Min | AA: 40.19 (+0.92s | 2.2%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 426 | Charlie Foster | 41.12 | 10 | A Min | AA: 40.19 (+0.93s | 2.3%) | Byron Center Aquatics | 02/07/2026 | 2026 Grand Rapids Open | |
| 427 | Gabriel Nolan | 41.12 | 10 | A Min | AA: 40.19 (+0.93s | 2.3%) | Long Island Express | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 428 | Gleb Nikishin | 41.13 | 9 | A Min | AA: 40.19 (+0.94s | 2.3%) | SwimRight Team | 10/25/2025 | 2025 FG YSF October Invite | |
| 429 | William Xing | 41.14 | 10 | A Min | AA: 40.19 (+0.95s | 2.3%) | Olympus Aquatics | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 430 | Brian Pan | 41.15 | 9 | A Min | AA: 40.19 (+0.96s | 2.3%) | Badger Swim Club,Inc. | 01/17/2026 | 2026 MR AGUA MLK Invitational | |
| 431 | Austin Loving | 41.15 | 10 | A Min | AA: 40.19 (+0.96s | 2.3%) | Nova of Virginia | 12/12/2025 | 2025 HVAC Winterfest Invitational | |
| 432 | Allen Wu | 41.19 | 10 | A Min | AA: 40.19 (+1.00s | 2.4%) | La Crosse Area Family YMCA Swi | 10/10/2025 | 2025 MN RSC Fall Frenzy | |
| 433 | Eliott Jackson | 41.19 | 9 | A Min | AA: 40.19 (+1.00s | 2.4%) | Team Eugene Aquatics | 12/12/2025 | 2025 TEAM Winter Invitational | |
| 434 | Owen Vaiana | 41.20 | 9 | A Min | AA: 40.19 (+1.01s | 2.5%) | Michigan Lakeshore Aquatics | 01/17/2026 | MLA 2026 Big Lake Invite | |
| 435 | Isaac Suh | 41.20 | 10 | A Min | AA: 40.19 (+1.01s | 2.5%) | Rebel Aquatic Club | 02/06/2026 | 2026 MR COND Last Chance Invitational | |
| 436 | James Zechmeister | 41.22 | 8 | A Min | AA: 40.19 (+1.03s | 2.5%) | Minnetonka Swim Club | 01/30/2026 | 2026 MN MTKA TYR Team Challenge | |
| 437 | Leo Wu | 41.22 | 12 | A Min | AA: 40.19 (+1.03s | 2.5%) | Dragon Swim Team | 11/14/2025 | 2025 PV November Open Dulles South | |
| 438 | Ethan Liang | 41.23 | 8 | A Min | AA: 40.19 (+1.04s | 2.5%) | Xtreme Swim Club | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 439 | John Cuba | 41.23 | 11 | A Min | AA: 40.19 (+1.04s | 2.5%) | Eastern Shore YMCA Fins | 01/10/2026 | ODAC January 2026 Rising Stars Meet | |
| 440 | Aris Shi | 41.23 | 9 | A Min | AA: 40.19 (+1.04s | 2.5%) | Arctic Aquatics | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 441 | Landon Wang | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Seattle Metropolitan Aquatic C | 11/22/2025 | 2025 PN Nov AGI, Division 2 (SMAC) | |
| 442 | Gabriel Brown | 41.24 | 8 | A Min | AA: 40.19 (+1.05s | 2.5%) | Unattached | 06/14/2024 | 2024 CZ Multi Cultural Meet | |
| 443 | Gilly Luna | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Paseo Aquatics Swim Team | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 444 | Jackson Lee | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Burlingame Aquatics | 10/25/2025 | TYR BAC SPOOKY FALL CLASSIC | |
| 445 | Mark Kouzmenko | 41.25 | 10 | A Min | AA: 40.19 (+1.06s | 2.6%) | Scorpion Swim Club | 10/04/2025 | 2025 NE CRIM IMR PENTATHLON Copied | |
| 446 | James Williams | 41.25 | 10 | A Min | AA: 40.19 (+1.06s | 2.6%) | Eagle Swim Team Inc. | 10/18/2025 | 2025 Fox Fall Invitational 1 Copied | |
| 447 | Matvey Fadeev | 41.25 | 9 | A Min | AA: 40.19 (+1.06s | 2.6%) | Issaquah Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 448 | Zackary Gromowski | 41.26 | 9 | A Min | AA: 40.19 (+1.07s | 2.6%) | Rockville Montgomery Swim Club | 12/11/2025 | 2025 Riley Eaton Holiday Invitational | |
| 449 | Ethan Kang | 41.27 | 10 | A Min | AA: 40.19 (+1.08s | 2.6%) | Santa Clara Swim Club | 11/08/2025 | Folsom Classic 2025 | |
| 450 | Thomas Sayer | 41.28 | 9 | A Min | AA: 40.19 (+1.09s | 2.6%) | Foxjets Swim Team | 01/30/2026 | 2026 MN MTKA TYR Team Challenge | |
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.