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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | David Grant | 38.91 | 10 | BB Min | A: 35.69 (+3.22s | 8.3%) | Fort Collins Area Swim Team | 05/16/2025 | 2025 CO NJ Ken Kelley Invite | |
| 402 | 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 | |
| 403 | 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 | |
| 404 | 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 | |
| 405 | 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 | |
| 406 | Thomas Cooke | 38.97 | 9 | BB Min | A: 35.69 (+3.28s | 8.4%) | Aptos Cabrillo Swim Club | 06/27/2025 | Valley Splash | |
| 407 | 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 | |
| 408 | 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 | |
| 409 | 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 | |
| 410 | Ryan Hartmann | 39.03 | 9 | BB Min | A: 35.69 (+3.34s | 8.6%) | Lakewood Ranch Swim Associatio | 06/19/2025 | 2025 Shark Open | |
| 411 | 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 | |
| 412 | Yanbo LI | 39.05 | 9 | BB Min | A: 35.69 (+3.36s | 8.6%) | Seattle Metropolitan Aquatic C | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 413 | Maxwell Morgan | 39.05 | 9 | BB Min | A: 35.69 (+3.36s | 8.6%) | Spartan Aquatic Club | 05/30/2025 | Hydro4 Summer Open | |
| 414 | Thomas Shearer | 39.09 | 10 | BB Min | A: 35.69 (+3.40s | 8.7%) | Sailfish | 05/04/2025 | 2025 ST TXLA 10 U End Of School Splash | |
| 415 | 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 | |
| 416 | 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 | |
| 417 | Sean Ning | 39.12 | 10 | BB Min | A: 35.69 (+3.43s | 8.8%) | YMCA of Central Florida | 06/12/2025 | 2025 RAFC Summer Solstice | |
| 418 | Kai Kitamori | 39.12 | 10 | BB Min | A: 35.69 (+3.43s | 8.8%) | East Bay Bat Rays | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 419 | Matthew Caldwell | 39.12 | 10 | BB Min | A: 35.69 (+3.43s | 8.8%) | Univ. of Denver Hilltoppers | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 420 | Rafael Koefman Camacho | 39.13 | 10 | BB Min | A: 35.69 (+3.44s | 8.8%) | Swim Florida | 05/23/2025 | 2025 T2 Aquatics Norris Foundation LC Meet | |
| 421 | Lucas Shamshurin | 39.14 | 10 | BB Min | A: 35.69 (+3.45s | 8.8%) | Bellevue Club Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 422 | 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 | |
| 423 | Samuel Leven | 39.15 | 10 | BB Min | A: 35.69 (+3.46s | 8.8%) | Alamo Area Aquatic Association | 06/20/2025 | 2025 ST AAAA NS George Block Invite | |
| 424 | 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 | |
| 425 | 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 | |
| 426 | Caleb McGovern | 39.18 | 10 | BB Min | A: 35.69 (+3.49s | 8.9%) | Portland Aquatic Club | 11/14/2025 | GACC PAC 12 U Sprint Dual | |
| 427 | Nikoloz Zhorzholiani | 39.19 | 9 | BB Min | A: 35.69 (+3.50s | 8.9%) | Seattle Metropolitan Aquatic C | 05/02/2025 | 2025 THSC Spring Invitational | |
| 428 | 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 | |
| 429 | Emmett Tourney | 39.20 | 9 | BB Min | A: 35.69 (+3.51s | 9.0%) | Red Wing Swim Club | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 430 | Kaden Falisi | 39.22 | 9 | BB Min | A: 35.69 (+3.53s | 9.0%) | Blue Dolfins | 05/16/2025 | 2025 PA Long Course Invite | |
| 431 | Levi Julson | 39.22 | 8 | BB Min | A: 35.69 (+3.53s | 9.0%) | Seminole Aquatics | 05/16/2025 | 2025 PA Long Course Invite | |
| 432 | 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 | |
| 433 | Nicholas Medina | 39.23 | 9 | BB Min | A: 35.69 (+3.54s | 9.0%) | Laker Swim | 06/12/2025 | 2025 RAFC Summer Solstice | |
| 434 | 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 | |
| 435 | Liam Reyes | 39.25 | 10 | BB Min | A: 35.69 (+3.56s | 9.1%) | Unattached | 06/20/2025 | Reno Aquatic Club Gamble | |
| 436 | Daniel Platon | 39.25 | 10 | BB Min | A: 35.69 (+3.56s | 9.1%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 437 | Arnesh Saraswat | 39.25 | 10 | BB Min | A: 35.69 (+3.56s | 9.1%) | SwimStrongsville | 07/12/2025 | LSSC Avon Classic | |
| 438 | Rojan Kundey | 39.27 | 10 | BB Min | A: 35.69 (+3.58s | 9.1%) | Monocacy Aquatic Club | 06/14/2024 | 2024 Winchester Long Course Inviational | |
| 439 | Jayan Naik | 39.27 | 10 | BB Min | A: 35.69 (+3.58s | 9.1%) | Capital of Texas Aquatics | 06/27/2025 | 2025 ST HPAC Long Course STX Championship | |
| 440 | Alex Liu | 39.27 | 9 | BB Min | A: 35.69 (+3.58s | 9.1%) | Brea Aquatics | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 441 | Ezra Epstein | 39.29 | 10 | BB Min | A: 35.69 (+3.60s | 9.2%) | Asphalt Green Unified Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 442 | Felix Hagen | 39.29 | 10 | BB Min | A: 35.69 (+3.60s | 9.2%) | Hurricanes Swim Team | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 443 | Luke Wang | 39.30 | 9 | BB Min | A: 35.69 (+3.61s | 9.2%) | Unattached | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 444 | Luke Chai | 39.30 | 9 | BB Min | A: 35.69 (+3.61s | 9.2%) | Pleasanton Seahawks | 06/20/2025 | Zone 2 Last Chance To AG Champs | |
| 445 | Uriah Sanchez | 39.32 | 10 | BB Min | A: 35.69 (+3.63s | 9.2%) | Rocky Mountain Rapids | 07/11/2025 | 2025 CO NJ Firecracker Invite | |
| 446 | Gary Stoll | 39.33 | 10 | BB Min | A: 35.69 (+3.64s | 9.3%) | Legacy Aquatics | 05/30/2025 | LA OPEN 2025 | |
| 447 | Chase Witt | 39.33 | 10 | BB Min | A: 35.69 (+3.64s | 9.3%) | Tillamook YMCA Sharks | 04/26/2025 | April Invitational 2025 | |
| 448 | Henry Bresson | 39.35 | 10 | BB Min | A: 35.69 (+3.66s | 9.3%) | Chinook Aquatic Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 449 | Muze Teng | 39.35 | 10 | BB Min | A: 35.69 (+3.66s | 9.3%) | Cascadia Swimming | 11/01/2025 | Oregon City Fall Open 2025 | |
| 450 | Castle Cline | 39.36 | 10 | BB Min | A: 35.69 (+3.67s | 9.3%) | Seattle Metropolitan Aquatic C | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
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.