USA Boys 10 & under - 50 M Free
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 651 | Lock Sleeper | 38.90 | 9 | BB Min | A: 35.69 (+3.21s | 8.3%) | Com Aquatics | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 652 | Ronan Kendall | 38.91 | 9 | BB Min | A: 35.69 (+3.22s | 8.3%) | South Florida Aquatic Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 653 | Alexander Zhurid | 38.92 | 8 | BB Min | A: 35.69 (+3.23s | 8.3%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 654 | Muyang He | 38.92 | 9 | BB Min | A: 35.69 (+3.23s | 8.3%) | Santa Clara Swim Club | 07/19/2025 | Santa Clara Valley Splash Block Party | |
| 655 | Cooper Casebolt | 38.92 | 10 | BB Min | A: 35.69 (+3.23s | 8.3%) | Life Time Colorado Swim Club | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 656 | Matthew Bennett | 38.93 | 10 | BB Min | A: 35.69 (+3.24s | 8.3%) | Pipeline Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 657 | Adam Jiang | 38.93 | 10 | BB Min | A: 35.69 (+3.24s | 8.3%) | Waterloo Swimming | 04/19/2026 | 2026 ST WLOO Classic | |
| 658 | Adrian Tu | 38.94 | 10 | BB Min | A: 35.69 (+3.25s | 8.3%) | Walnut Creek Aquabears | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 659 | Christopher Thomas | 38.95 | 8 | BB Min | A: 35.69 (+3.26s | 8.4%) | Blue Dolfins | 05/15/2026 | 2026 PA Long Course Invite | |
| 660 | Brayden Nguyen | 38.97 | 9 | BB Min | A: 35.69 (+3.28s | 8.4%) | San Jose Goosemonkeys | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 661 | Charlie Vazac | 38.97 | 9 | BB Min | A: 35.69 (+3.28s | 8.4%) | St Croix Swim Club | 06/27/2025 | 2025 SD SFST Sanford Invite | |
| 662 | Thomas Cooke | 38.97 | 9 | BB Min | A: 35.69 (+3.28s | 8.4%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 663 | Flynn Chen | 38.97 | 10 | BB Min | A: 35.69 (+3.28s | 8.4%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 664 | Kroy Riley | 38.99 | 10 | BB Min | A: 35.69 (+3.30s | 8.5%) | High Performance Aquatic Club | 06/27/2025 | 2025 ST HPAC Long Course STX Championship | |
| 665 | Alex van den Berg | 38.99 | 9 | BB Min | A: 35.69 (+3.30s | 8.5%) | Swim Melbourne | 06/07/2025 | 2025 TCA Aaron Vaughn Memorial | |
| 666 | Oliver Song Zhang | 38.99 | 10 | BB Min | A: 35.69 (+3.30s | 8.5%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 667 | Kai McGovern | 38.99 | 10 | BB Min | A: 35.69 (+3.30s | 8.5%) | Hurricanes Swim Team | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 668 | Ben Tollon | 39.00 | 9 | BB Min | A: 35.69 (+3.31s | 8.5%) | West Florida Lightning Aquatic | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 669 | Levi Burrows | 39.00 | 10 | BB Min | A: 35.69 (+3.31s | 8.5%) | St Croix Swim Club | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 670 | Theodore Neese | 39.02 | 10 | BB Min | A: 35.69 (+3.33s | 8.5%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 671 | Nathanael Richards | 39.03 | 9 | BB Min | A: 35.69 (+3.34s | 8.6%) | Spokane Waves Aquatic Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 672 | Kian Bryson | 39.03 | 9 | BB Min | A: 35.69 (+3.34s | 8.6%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 673 | Cooper Dickie | 39.05 | 10 | BB Min | A: 35.69 (+3.36s | 8.6%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 674 | Owen Ball | 39.06 | 11 | BB Min | A: 35.69 (+3.37s | 8.6%) | Rocklin Swim Team | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 675 | Remington Kalicinski | 39.06 | 10 | BB Min | A: 35.69 (+3.37s | 8.6%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 676 | Jonah Densberger | 39.07 | 10 | BB Min | A: 35.69 (+3.38s | 8.7%) | Blue Dolfins | 05/15/2026 | 2026 PA Long Course Invite | |
| 677 | Felician Perski Smaluch | 39.08 | 9 | BB Min | A: 35.69 (+3.39s | 8.7%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 678 | Mason Howe | 39.09 | 10 | BB Min | A: 35.69 (+3.40s | 8.7%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 679 | Aaron Kim | 39.09 | 9 | BB Min | A: 35.69 (+3.40s | 8.7%) | The Spartans of La Canada | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 680 | Bennett Gregory | 39.10 | 10 | BB Min | A: 35.69 (+3.41s | 8.7%) | YMCA of Austin Swim Alliance | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 681 | Gavin Johnston | 39.10 | 9 | BB Min | A: 35.69 (+3.41s | 8.7%) | Manta Ray Aquatics | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 682 | Chase Witt | 39.11 | 10 | BB Min | A: 35.69 (+3.42s | 8.7%) | Gold\\\\\\'s Aquatics Club (Camas) | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 683 | Jay Kowren | 39.12 | 10 | BB Min | A: 35.69 (+3.43s | 8.8%) | Bainbridge Island Swim Club | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 684 | Matthew Davie | 39.12 | 10 | BB Min | A: 35.69 (+3.43s | 8.8%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 685 | Sebastian Siebert Restrepo | 39.13 | 10 | BB Min | A: 35.69 (+3.44s | 8.8%) | Clearwater Aquatic Team | 05/01/2026 | 2026 WFLA SPRING OPEN | |
| 686 | Ilan Rattner | 39.15 | 9 | BB Min | A: 35.69 (+3.46s | 8.8%) | Sunnyvale Swim Club | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 687 | Stefano Ferrarese | 39.15 | 9 | BB Min | A: 35.69 (+3.46s | 8.8%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 688 | Finn McJunkin | 39.16 | 10 | BB Min | A: 35.69 (+3.47s | 8.9%) | Swim Lake City Legends | 07/17/2025 | 2025 UTAGS LC Championships | |
| 689 | Greyson Huddleston | 39.16 | 9 | BB Min | A: 35.69 (+3.47s | 8.9%) | Patriot Aquatics | 05/15/2026 | 2026 PA Long Course Invite | |
| 690 | Nolan Giannini | 39.17 | 9 | BB Min | A: 35.69 (+3.48s | 8.9%) | Puma Aquatic Team | 07/16/2025 | Renee And Jim Patterson Meet 2025 | |
| 691 | Callahan Calkins | 39.19 | 10 | BB Min | A: 35.69 (+3.50s | 8.9%) | Hydro Swim Club | 05/02/2026 | SwimRise IMX IMR Challenge | |
| 692 | Micah Adams | 39.20 | 10 | BB Min | A: 35.69 (+3.51s | 9.0%) | Hood River Valley Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 693 | Emmett Tourney | 39.20 | 10 | BB Min | A: 35.69 (+3.51s | 9.0%) | Red Wing Swim Club | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 694 | Damon Mackey | 39.22 | 10 | BB Min | A: 35.69 (+3.53s | 9.0%) | Piranhas YMCA of the Suncoast | 04/17/2026 | 2026 SAINT PETE S 1st LONG COURSE MEET | |
| 695 | Gregory Rucker | 39.22 | 10 | BB Min | A: 35.69 (+3.53s | 9.0%) | Firestone Akron Swim Team | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 696 | Mark Bossowski | 39.22 | 10 | BB Min | A: 35.69 (+3.53s | 9.0%) | Tampa Y Swimming | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 697 | Emerson Wescott | 39.23 | 10 | BB Min | A: 35.69 (+3.54s | 9.0%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 698 | Adrian Mendoza | 39.24 | 10 | BB Min | A: 35.69 (+3.55s | 9.0%) | Front Range Barracudas | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 699 | Abraham Carver | 39.24 | 9 | BB Min | A: 35.69 (+3.55s | 9.0%) | Saint Petersburg Aquatics | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 700 | Liam Reyes | 39.25 | 10 | BB Min | A: 35.69 (+3.56s | 9.1%) | Unattached | 06/20/2025 | Reno Aquatic Club Gamble | |
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.