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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4301 | Enzo Palomino | 50.10 | 9 | B: 43.89 (+6.21s | 12.4%) | South Valley Makos | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | ||
| 4302 | Samuel Avila Alcala | 50.11 | 8 | B: 43.89 (+6.22s | 12.4%) | Marmo Nadadores | 08/06/2025 | 2025 Summer Elite Showcase | ||
| 4303 | Finn Zeilman | 50.11 | 10 | B: 43.89 (+6.22s | 12.4%) | Gunnison Stingrays | 06/19/2025 | 2025 CO Grand Junction Invitational | ||
| 4304 | Theo Aho | 50.11 | 8 | B: 43.89 (+6.22s | 12.4%) | Lone Star Aquatic Club | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | ||
| 4305 | Ratibor Stepanov | 50.12 | 9 | B: 43.89 (+6.23s | 12.4%) | Waterloo Swimming | 05/08/2026 | 2026 ST ASC Cinco De Mayo | ||
| 4306 | Killian Adams | 50.14 | 10 | B: 43.89 (+6.25s | 12.5%) | Stingray Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | ||
| 4307 | William Fan | 50.14 | 8 | B: 43.89 (+6.25s | 12.5%) | DeAnza Cupertino Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | ||
| 4308 | Jiaqi Zong | 50.15 | 8 | B: 43.89 (+6.26s | 12.5%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | ||
| 4309 | Reece Kau | 50.15 | 10 | B: 43.89 (+6.26s | 12.5%) | Palo Alto Stanford Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | ||
| 4310 | Lucien Dickert | 50.15 | 10 | B: 43.89 (+6.26s | 12.5%) | St Croix Swim Club | 06/19/2026 | 2026 MN MAN Red White Blue Invite Copied | ||
| 4311 | Luke Seaton | 50.16 | 9 | B: 43.89 (+6.27s | 12.5%) | Ensworth Aquatics | 05/15/2026 | 2026 Officially Summer Invitational | ||
| 4312 | Cash Burns | 50.16 | 8 | B: 43.89 (+6.27s | 12.5%) | Montrose Marlins Swim Club | 05/29/2026 | 2026 CO Cortez Summer Open | ||
| 4313 | Ram Satam | 50.17 | 10 | B: 43.89 (+6.28s | 12.5%) | Rochester Swim Club | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | ||
| 4314 | Oliver Reilly | 50.18 | 8 | B: 43.89 (+6.29s | 12.5%) | SwimMAC Carolina | 06/05/2026 | 2026 TEAM School S Out Summer Invite | ||
| 4315 | Lincoln Swinto | 50.18 | 8 | B: 43.89 (+6.29s | 12.5%) | Pine Island Aquatics | 06/19/2026 | 2026 GCST MARK MCCAW SUMMER INVITE | ||
| 4316 | Shu Peng | 50.18 | 8 | B: 43.89 (+6.29s | 12.5%) | Aquajets Swim Team | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | ||
| 4317 | Theodore Pet | 50.21 | 9 | B: 43.89 (+6.32s | 12.6%) | Life Time Swim Missouri | 06/26/2026 | 88th CSP Summer Invitational | ||
| 4318 | Chase White | 50.21 | 10 | B: 43.89 (+6.32s | 12.6%) | South Valley Makos | 06/28/2024 | 2024 Valley Splash Zone 1S LCM C B A+ | ||
| 4319 | Peter Neibaur | 50.22 | 8 | B: 43.89 (+6.33s | 12.6%) | Voltage Aquatics | 06/07/2025 | Summer Classics 2025 | ||
| 4320 | Rayansh Pathak | 50.22 | 10 | B: 43.89 (+6.33s | 12.6%) | Swim Coral Springs | 06/06/2026 | 18th Annual LC NPB Summer Kickoff | ||
| 4321 | William Nurnberg | 50.22 | 10 | B: 43.89 (+6.33s | 12.6%) | Star Swim Team | 06/27/2026 | 2026 STAR Summer Splash Invite | ||
| 4322 | Thomas Castaneda | 50.22 | 7 | B: 43.89 (+6.33s | 12.6%) | Lifetime | 05/30/2026 | 2026 NE NSSC May Invitational At Colby | ||
| 4323 | Micah George | 50.23 | 8 | B: 43.89 (+6.34s | 12.6%) | Raleigh Swimming Association | 06/13/2026 | 2026 MOR Liberty Meet | ||
| 4324 | Esun Ni | 50.23 | 9 | B: 43.89 (+6.34s | 12.6%) | Mei\\\\\\'s Typhoons Swimming Club | 04/24/2026 | 2026 NE NSSC 4 24 26 Specialty Meet | ||
| 4325 | John Yi | 50.24 | 9 | B: 43.89 (+6.35s | 12.6%) | Orca Aquatics | 04/26/2026 | 2026 NE RIAC Quahog Cup | ||
| 4326 | Derek Feng | 50.24 | 10 | B: 43.89 (+6.35s | 12.6%) | San Ramon Valley Aquatics | 04/26/2025 | PacSwim LCM C B BB+ Hosted By TERA | ||
| 4327 | Xavier Jimenez | 50.25 | 8 | B: 43.89 (+6.36s | 12.7%) | Stafford Aquatics Team | 05/01/2026 | 2026 Helen Wang Sunflower Classic | ||
| 4328 | Connor Mattoon | 50.26 | 7 | B: 43.89 (+6.37s | 12.7%) | Kona Dolphins Swim Club | 06/27/2026 | BIG ISLAND SWIMMING @ KSH | ||
| 4329 | Liam Brown | 50.26 | 8 | B: 43.89 (+6.37s | 12.7%) | Northern KY Clippers | 06/05/2026 | 25th Annual CLPR David Webb Meet | ||
| 4330 | Kevin Lin | 50.26 | 10 | B: 43.89 (+6.37s | 12.7%) | Cougar Aquatics | 06/19/2026 | 2026 SWAT Summer Solstice | ||
| 4331 | Leon Lu | 50.27 | 8 | B: 43.89 (+6.38s | 12.7%) | Denver Triton Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | ||
| 4332 | Robby Westman | 50.27 | 9 | B: 43.89 (+6.38s | 12.7%) | Foxjets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | ||
| 4333 | Eason Niu | 50.28 | 9 | B: 43.89 (+6.39s | 12.7%) | San Ramon Valley Aquatics | 06/13/2026 | Orinda PC LC AG C B BB+ | ||
| 4334 | Jett Crawford | 50.29 | 8 | B: 43.89 (+6.40s | 12.7%) | Four Corners Aquatic Team | 05/29/2026 | 2026 CO Cortez Summer Open | ||
| 4335 | Liam Daykhovsky | 50.29 | 9 | B: 43.89 (+6.40s | 12.7%) | SwimMAC Carolina | 06/05/2026 | 2026 TEAM School S Out Summer Invite | ||
| 4336 | Owen Bailey | 50.30 | 9 | B: 43.89 (+6.41s | 12.7%) | Mission Aurora Colorado Swimmi | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | ||
| 4337 | Julian Nagpal | 50.30 | 10 | B: 43.89 (+6.41s | 12.7%) | Piedmont Swim Team | 06/27/2026 | NVST Summer Plunge 2026 | ||
| 4338 | James Reynolds | 50.31 | 8 | B: 43.89 (+6.42s | 12.8%) | Sarasota Tsunami Swim Team | 05/02/2026 | 2026 Sea Dragon May Open | ||
| 4339 | Ivan Marchuk | 50.31 | 9 | B: 43.89 (+6.42s | 12.8%) | Patriot Aquatics | 04/11/2026 | 2026 Ron Nardozzi Pre Derby Sprint Invite C | ||
| 4340 | Adrian Mataras | 50.33 | 10 | B: 43.89 (+6.44s | 12.8%) | Crimson Aquatics | 04/26/2026 | 2026 NE RIAC Quahog Cup | ||
| 4341 | Leonardo Soto | 50.34 | 10 | B: 43.89 (+6.45s | 12.8%) | Ensworth Aquatics | 04/24/2026 | 2026 ARENA Long Course Invitational Meet | ||
| 4342 | Cody Preikschas | 50.34 | 9 | B: 43.89 (+6.45s | 12.8%) | Area Tallahassee Aquatic Club | 06/27/2025 | ATAC Long Course | ||
| 4343 | Vivaan Palit | 50.36 | 9 | B: 43.89 (+6.47s | 12.8%) | Waterloo Swimming | 04/19/2026 | 2026 ST WLOO Classic | ||
| 4344 | Mason Birnie | 50.37 | 9 | B: 43.89 (+6.48s | 12.9%) | Front Range Barracudas | 06/27/2026 | 2026 CO CUDA Summer Kicker | ||
| 4345 | Bennett Byrne | 50.37 | 8 | B: 43.89 (+6.48s | 12.9%) | Texas Elite Swimming | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | ||
| 4346 | Jonathan Shi | 50.38 | 8 | B: 43.89 (+6.49s | 12.9%) | Cascadia Swimming | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | ||
| 4347 | Lucas Couture | 50.40 | 8 | B: 43.89 (+6.51s | 12.9%) | Smithfield YMCA Dolphins | 05/16/2026 | 2026 NE KCY Invitational | ||
| 4348 | Pascal Srour | 50.41 | 8 | B: 43.89 (+6.52s | 12.9%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | ||
| 4349 | Holden Karver | 50.42 | 8 | B: 43.89 (+6.53s | 13.0%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | ||
| 4350 | Marion Haynes | 50.42 | 8 | B: 43.89 (+6.53s | 13.0%) | Cincinnati Marlins | 06/05/2026 | 25th Annual CLPR David Webb Meet | ||
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.