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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | Oliver Pearce | 44.89 | 10 | BB Min | A: 43.09 (+1.80s | 4.0%) | Aces Swim Club | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 402 | Samuel Diemert | 44.91 | 9 | BB Min | A: 43.09 (+1.82s | 4.1%) | Mission Aurora Colorado Swimmi | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 403 | Nicholas Harrold | 44.92 | 10 | BB Min | A: 43.09 (+1.83s | 4.1%) | Pikes Peak Athletics | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 404 | Bennett Gregory | 44.94 | 10 | BB Min | A: 43.09 (+1.85s | 4.1%) | YMCA of Austin Swim Alliance | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 405 | Miro Wang | 44.94 | 10 | BB Min | A: 43.09 (+1.85s | 4.1%) | Santa Clara Swim Club | 05/30/2025 | SCSC Pacific Swimming Long Course Intrasquad | |
| 406 | Caden Shane | 44.96 | 10 | BB Min | A: 43.09 (+1.87s | 4.2%) | Sarasota Tsunami Swim Team | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 407 | Sameer Pai | 44.97 | 10 | BB Min | A: 43.09 (+1.88s | 4.2%) | Aquajets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 408 | Owen Yan | 44.98 | 10 | BB Min | A: 43.09 (+1.89s | 4.2%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 409 | Patricio Pasquel Garcia | 44.99 | 10 | BB Min | A: 43.09 (+1.90s | 4.2%) | Titanes de Tym | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 410 | Garrett Legg | 45.00 | 8 | BB Min | A: 43.09 (+1.91s | 4.2%) | Pleasanton Seahawks | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 411 | Julian Lee | 45.02 | 10 | BB Min | A: 43.09 (+1.93s | 4.3%) | Sporting Jax Aquatic Club | 04/10/2026 | 2026 April Classic | |
| 412 | Colin Hui | 45.02 | 10 | BB Min | A: 43.09 (+1.93s | 4.3%) | Highlands Ranch Aquatics | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 413 | Marco Gonzalez | 45.02 | 10 | BB Min | A: 43.09 (+1.93s | 4.3%) | South Bay Aquatics | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 414 | Jaxon Despain | 45.03 | 9 | BB Min | A: 43.09 (+1.94s | 4.3%) | Denver Swim Academy | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 415 | Max Frankel | 45.03 | 10 | BB Min | A: 43.09 (+1.94s | 4.3%) | SwimRight Team | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 416 | Blake Davis | 45.03 | 8 | BB Min | A: 43.09 (+1.94s | 4.3%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 417 | Devin Song | 45.04 | 9 | BB Min | A: 43.09 (+1.95s | 4.3%) | Rose Bowl Aquatics | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 418 | Kyle Whitley | 45.04 | 10 | BB Min | A: 43.09 (+1.95s | 4.3%) | Fast Falcons | 04/25/2026 | 11th Annual Hohne Memorial Invitational | |
| 419 | Felix Hagen | 45.04 | 10 | BB Min | A: 43.09 (+1.95s | 4.3%) | Hurricanes Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 420 | Titus Wu | 45.05 | 10 | BB Min | A: 43.09 (+1.96s | 4.4%) | Lynchburg YMCA Swim Team | 07/12/2024 | 2024 CCA Summer Awards | |
| 421 | Anderson Bradley | 45.05 | 10 | BB Min | A: 43.09 (+1.96s | 4.4%) | Coastal Machine Aquatics Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 422 | Christian Schafer | 45.07 | 10 | BB Min | A: 43.09 (+1.98s | 4.4%) | Lone Star Aquatic Club | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 423 | Merrick Harner | 45.08 | 10 | BB Min | A: 43.09 (+1.99s | 4.4%) | Brevard Swim Club | 05/23/2025 | 2025 Dr Aspi Doctor Memorial Invitational | |
| 424 | Jaize Council | 45.08 | 10 | BB Min | A: 43.09 (+1.99s | 4.4%) | Tide Swimming | 07/11/2024 | 2024 VSI Regional Summer Awards | |
| 425 | Vincent Nan | 45.10 | 10 | BB Min | A: 43.09 (+2.01s | 4.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 426 | Charles Knigge | 45.11 | 10 | BB Min | A: 43.09 (+2.02s | 4.5%) | Spokane Waves Aquatic Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 427 | Brandon Worth | 45.13 | 10 | BB Min | A: 43.09 (+2.04s | 4.5%) | Capital of Texas Aquatics | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 428 | Forrest Foster | 45.13 | 10 | BB Min | A: 43.09 (+2.04s | 4.5%) | Northside Aquatics | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 429 | Matias Franco Delgado | 45.13 | 10 | BB Min | A: 43.09 (+2.04s | 4.5%) | Fast Falcons | 04/11/2026 | 2026 Stingrays Early LCM Season Opener | |
| 430 | Henry Luevano | 45.14 | 9 | BB Min | A: 43.09 (+2.05s | 4.5%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 431 | Mikhail Lagzdin | 45.16 | 9 | BB Min | A: 43.09 (+2.07s | 4.6%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 432 | Deniz Gokbulut | 45.19 | 10 | BB Min | A: 43.09 (+2.10s | 4.6%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 433 | Oliver Ni | 45.20 | 10 | BB Min | A: 43.09 (+2.11s | 4.7%) | Makos Aquatics Club of Gainesv | 05/15/2026 | 2026 FAST May Invite | |
| 434 | Russell Sanosi | 45.20 | 10 | BB Min | A: 43.09 (+2.11s | 4.7%) | Tide Swimming | 04/20/2024 | 2024 Black Vs Blue Intrasquad Meet | |
| 435 | Daniel Reschke | 45.20 | 10 | BB Min | A: 43.09 (+2.11s | 4.7%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 436 | Jonathan Wen | 45.21 | 10 | BB Min | A: 43.09 (+2.12s | 4.7%) | Rancho San Dieguito | 04/24/2026 | 2026 SI PS ABB Meet B Group | |
| 437 | Jaafar Lahmidi | 45.23 | 10 | BB Min | A: 43.09 (+2.14s | 4.7%) | Foothills Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 438 | Aleksandr Rybin | 45.25 | 10 | BB Min | A: 43.09 (+2.16s | 4.8%) | King Aquatic Club | 04/25/2025 | 2025 PN KING Spring Derby | |
| 439 | Adrian Goo | 45.26 | 10 | BB Min | A: 43.09 (+2.17s | 4.8%) | Walnut Creek Aquabears | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 440 | William Palumbo | 45.27 | 10 | BB Min | A: 43.09 (+2.18s | 4.8%) | Nova of Virginia | 07/11/2024 | 2024 RAYS Summer Awards | |
| 441 | Kaulu Au | 45.28 | 10 | BB Min | A: 43.09 (+2.19s | 4.8%) | Rainbow Aquatics | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 442 | Scott Maley | 45.29 | 10 | BB Min | A: 43.09 (+2.20s | 4.9%) | Rochester Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 443 | Martin Li | 45.30 | 9 | BB Min | A: 43.09 (+2.21s | 4.9%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 444 | Sebastian Saade | 45.33 | 10 | BB Min | A: 43.09 (+2.24s | 4.9%) | Los Angeles Swim Club | 06/13/2024 | 2024 CA SCS CANY June Age Group Invite | |
| 445 | Avyan Bajpai | 45.33 | 9 | BB Min | A: 43.09 (+2.24s | 4.9%) | Hillsboro Swim Team | 05/01/2026 | 2026 THSC Spring Invite | |
| 446 | Daniel Guo | 45.33 | 10 | BB Min | A: 43.09 (+2.24s | 4.9%) | Riptide Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 447 | Caleb Taussig | 45.34 | 9 | BB Min | A: 43.09 (+2.25s | 5.0%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 448 | Evan Buchanan | 45.34 | 10 | BB Min | A: 43.09 (+2.25s | 5.0%) | Hudson Explorer Aquatic | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 449 | Lockyer Landry | 45.35 | 10 | BB Min | A: 43.09 (+2.26s | 5.0%) | Treasure Coast Aquatics | 05/02/2026 | TCSC Go For The Gold Invitational | |
| 450 | David Suchkov | 45.35 | 9 | BB Min | A: 43.09 (+2.26s | 5.0%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
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.