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 | |
|---|---|---|---|---|---|---|---|---|---|
| 901 | Leo Ioffe | 40.47 | 9 | B Min | BB: 39.79 (+0.68s | 1.7%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 902 | William Vaughn | 40.47 | 9 | B Min | BB: 39.79 (+0.68s | 1.7%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 903 | Johnathan Wang | 40.48 | 9 | B Min | BB: 39.79 (+0.69s | 1.7%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 904 | Jay Dai | 40.48 | 10 | B Min | BB: 39.79 (+0.69s | 1.7%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 905 | Maddix Loh | 40.48 | 10 | B Min | BB: 39.79 (+0.69s | 1.7%) | Unattached | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 906 | Xander Andrade | 40.50 | 9 | B Min | BB: 39.79 (+0.71s | 1.8%) | Pflugerville Pflamingos | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 907 | Jeremiah Dejos | 40.51 | 8 | B Min | BB: 39.79 (+0.72s | 1.8%) | High Performance Aquatic Club | 04/26/2025 | 2025 HPAC Banana Slug Beach Bash | |
| 908 | Alroy Conry | 40.51 | 8 | B Min | BB: 39.79 (+0.72s | 1.8%) | Aces Swim Club | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 909 | Everett Harrell | 40.51 | 9 | B Min | BB: 39.79 (+0.72s | 1.8%) | Com Aquatics | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 910 | Ethan Liu | 40.52 | 9 | B Min | BB: 39.79 (+0.73s | 1.8%) | Highlands Ranch Aquatics | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 911 | Benjamin Bolkey | 40.52 | 9 | B Min | BB: 39.79 (+0.73s | 1.8%) | Lone Star Aquatic Club | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 912 | Ethan Baxter | 40.53 | 10 | B Min | BB: 39.79 (+0.74s | 1.8%) | Island Aquatics | 04/19/2026 | 2026 MAGSA LCM A1 Meet | |
| 913 | Benjamin Carusone | 40.53 | 9 | B Min | BB: 39.79 (+0.74s | 1.8%) | Westlake Aquatic Facility | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 914 | Evan Wang | 40.54 | 9 | B Min | BB: 39.79 (+0.75s | 1.9%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 915 | Oliver Tornatore | 40.54 | 10 | B Min | BB: 39.79 (+0.75s | 1.9%) | Central Minnesota Aquatics | 07/18/2025 | 2025 MN TUNA Minnesota Regional Championship | |
| 916 | Westley Berman | 40.54 | 10 | B Min | BB: 39.79 (+0.75s | 1.9%) | Palo Alto Stanford Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 917 | Paul Gunn | 40.55 | 10 | B Min | BB: 39.79 (+0.76s | 1.9%) | Y Wooster Rec Club | 06/27/2025 | 2025 55th FREEDLANDER MEET | |
| 918 | Ahmet Okyay | 40.55 | 10 | B Min | BB: 39.79 (+0.76s | 1.9%) | Alto Swim Club | 04/19/2025 | Alto Spring Jam Meet | |
| 919 | Liam Schnobrich | 40.58 | 10 | B Min | BB: 39.79 (+0.79s | 1.9%) | St Croix Swim Club | 06/27/2025 | 2025 SD SFST Sanford Invite | |
| 920 | Marcel Sanchez Bannikov | 40.58 | 9 | B Min | BB: 39.79 (+0.79s | 1.9%) | South Florida Aquatic Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 921 | Moss Fano | 40.59 | 9 | B Min | BB: 39.79 (+0.80s | 2.0%) | Team Greenville | 06/12/2025 | Holtrey Summer Classic | |
| 922 | Oliver Ryan | 40.60 | 10 | B Min | BB: 39.79 (+0.81s | 2.0%) | San Gabriel Aquatics | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 923 | Grant Zimmermann | 40.61 | 10 | B Min | BB: 39.79 (+0.82s | 2.0%) | YMCA of the Triangle Area Swim | 06/14/2024 | SwimRVA Summer Invitational | |
| 924 | Austin Pham | 40.61 | 10 | B Min | BB: 39.79 (+0.82s | 2.0%) | Foothills Swim Team | 04/26/2025 | 2025 CO FST Spring LC Fever | |
| 925 | Liam Benson | 40.62 | 10 | B Min | BB: 39.79 (+0.83s | 2.0%) | Sea Devils | 06/21/2025 | 2025 MN TUNA Oppor TUNA Ty 2 Invite | |
| 926 | Amir Turgunov | 40.63 | 9 | B Min | BB: 39.79 (+0.84s | 2.1%) | Patriot Aquatics | 04/11/2026 | 2026 Ron Nardozzi Pre Derby Sprint Invite C | |
| 927 | Colin Chin | 40.63 | 9 | B Min | BB: 39.79 (+0.84s | 2.1%) | Highlander Aquatic Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 928 | Yunus Mukhamadiev | 40.63 | 10 | B Min | BB: 39.79 (+0.84s | 2.1%) | Brentwood Seawolves | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 929 | Luka Radchenko Avondo | 40.63 | 9 | B Min | BB: 39.79 (+0.84s | 2.1%) | Nitro Swimming | 05/09/2026 | 2026 ST NTRO LC School S Out | |
| 930 | Anton Todd | 40.64 | 10 | B Min | BB: 39.79 (+0.85s | 2.1%) | Pierre Swim Team | 07/18/2025 | 2025 SD State Long Course Meet | |
| 931 | Haoran Cong | 40.65 | 10 | B Min | BB: 39.79 (+0.86s | 2.1%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 932 | Watson She | 40.66 | 9 | B Min | BB: 39.79 (+0.87s | 2.1%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 933 | Owen Wallin | 40.67 | 8 | B Min | BB: 39.79 (+0.88s | 2.2%) | Swim Tampa Aquatics | 05/01/2026 | 2026 WFLA SPRING OPEN | |
| 934 | Dashel Archer | 40.69 | 10 | B Min | BB: 39.79 (+0.90s | 2.2%) | Evergreen Hurricanes | 06/06/2025 | 2025 CO NJ Summer Solstice Invitational | |
| 935 | Timo Allen | 40.69 | 9 | B Min | BB: 39.79 (+0.90s | 2.2%) | Azura Florida Aquatics | 04/25/2026 | 2026 Azura Spring Open LCM Invit | |
| 936 | Erik Hai | 40.70 | 10 | B Min | BB: 39.79 (+0.91s | 2.2%) | The Claremont Club | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 937 | Nolan Cox | 40.70 | 9 | B Min | BB: 39.79 (+0.91s | 2.2%) | San Antonio Wave | 04/18/2026 | 2026 ST NIST Spring Into Long Course | |
| 938 | River Wilkinson | 40.71 | 9 | B Min | BB: 39.79 (+0.92s | 2.3%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 939 | Stephan Fesenko | 40.71 | 8 | B Min | BB: 39.79 (+0.92s | 2.3%) | Bolles School Sharks | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 940 | Kai Karam | 40.72 | 8 | B Min | BB: 39.79 (+0.93s | 2.3%) | South Florida Aquatic Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 941 | Luca Mansur | 40.74 | 10 | B Min | BB: 39.79 (+0.95s | 2.3%) | Azura Florida Aquatics | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 942 | Reed Bohonek | 40.75 | 10 | B Min | BB: 39.79 (+0.96s | 2.4%) | SwimEnergy Aquatics | 04/11/2025 | 2025 GCST Spring Invite | |
| 943 | James Martin | 40.75 | 10 | B Min | BB: 39.79 (+0.96s | 2.4%) | Nova of Virginia | 04/26/2024 | NOVA LC Kick Off | |
| 944 | August McFarland | 40.76 | 8 | B Min | BB: 39.79 (+0.97s | 2.4%) | Form Swim Team | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 945 | Lucas De Soto Mejias | 40.77 | 10 | B Min | BB: 39.79 (+0.98s | 2.4%) | Bolles School Sharks | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 946 | Bryant Arguello | 40.77 | 10 | B Min | BB: 39.79 (+0.98s | 2.4%) | City of Miami Parks Swim Team | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 947 | Arthur Grant | 40.78 | 10 | B Min | BB: 39.79 (+0.99s | 2.4%) | Indian River Aquatics | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 948 | Austin Chang | 40.79 | 10 | B Min | BB: 39.79 (+1.00s | 2.5%) | Waterloo Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 949 | Gabriel Lydek | 40.79 | 9 | B Min | BB: 39.79 (+1.00s | 2.5%) | Firestone Akron Swim Team | 05/16/2025 | Busbey Invitational 2025 | |
| 950 | Cooper McDonald | 40.79 | 8 | B Min | BB: 39.79 (+1.00s | 2.5%) | Perry Aquatic Club | 05/10/2025 | 2025 NCAT TYR LC Age Group Open | |
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.