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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2651 | Dean Kosiorek | 43.20 | 8 | B Min | BB: 39.79 (+3.41s | 7.9%) | Dedham Health Hydra | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 2652 | Julian Kreth | 43.20 | 8 | B Min | BB: 39.79 (+3.41s | 7.9%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 2653 | Ethan Thomas | 43.20 | 10 | B Min | BB: 39.79 (+3.41s | 7.9%) | Memphis Tiger Swimming | 06/26/2026 | 2026 Dick Fadgen Tiger Classic | |
| 2654 | August Baikauskas | 43.21 | 9 | B Min | BB: 39.79 (+3.42s | 7.9%) | Loyola Blakefield Aquatics | 04/11/2026 | 2026 Fox April Long Course Invitational | |
| 2655 | Jun Lin | 43.21 | 8 | B Min | BB: 39.79 (+3.42s | 7.9%) | Seattle Metropolitan Aquatic C | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 2656 | Zakhar Biliavskyi | 43.22 | 8 | B Min | BB: 39.79 (+3.43s | 7.9%) | Tac Titans | 07/05/2026 | 2026 TAC July Qualifier Meet | |
| 2657 | Elijah Lin | 43.22 | 9 | B Min | BB: 39.79 (+3.43s | 7.9%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 2658 | Everett Funk | 43.22 | 8 | B Min | BB: 39.79 (+3.43s | 7.9%) | Rogue Rapids | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 2659 | Owen Hamaker | 43.22 | 9 | B Min | BB: 39.79 (+3.43s | 7.9%) | Unattached | 05/23/2026 | 2026 SI HSA A All Ages NTS May 23 24 | |
| 2660 | Arihaan Goswami | 43.22 | 7 | B Min | BB: 39.79 (+3.43s | 7.9%) | Lifetime | 05/30/2026 | 2026 NE NSSC May Invitational At Colby | |
| 2661 | Aiden Zhang | 43.22 | 8 | B Min | BB: 39.79 (+3.43s | 7.9%) | Olympic Cascade Aquatics | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 2662 | Knox Monsivais | 43.23 | 10 | B Min | BB: 39.79 (+3.44s | 8.0%) | Lehi Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 2663 | William Foster | 43.23 | 10 | B Min | BB: 39.79 (+3.44s | 8.0%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 2664 | Gordon Tai | 43.24 | 10 | B Min | BB: 39.79 (+3.45s | 8.0%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 2665 | Bennett Haselfeld | 43.24 | 10 | B Min | BB: 39.79 (+3.45s | 8.0%) | Issaquah Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 2666 | Cameron Mendelsohn | 43.25 | 8 | B Min | BB: 39.79 (+3.46s | 8.0%) | Life Time Minnesota Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 2667 | Flynn Taylor | 43.25 | 10 | B Min | BB: 39.79 (+3.46s | 8.0%) | Surge Aquatics | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 2668 | Andrew Cox | 43.25 | 8 | B Min | BB: 39.79 (+3.46s | 8.0%) | North Carolina Aquatic Club | 05/15/2026 | 2026 NCAC Meet On The Hill | |
| 2669 | James Cronin | 43.25 | 8 | B Min | BB: 39.79 (+3.46s | 8.0%) | Sebastopol Sea Serpents | 06/12/2026 | Neptune Swimming June LC Meet | |
| 2670 | Andre Michael | 43.26 | 9 | B Min | BB: 39.79 (+3.47s | 8.0%) | Gator Swim Club | 06/25/2026 | 2026 FAST Independence Invitational | |
| 2671 | Aanav Parekh | 43.26 | 9 | B Min | BB: 39.79 (+3.47s | 8.0%) | Phoenix Swimming | 04/24/2026 | 2026 NE NSSC 4 24 26 Specialty Meet | |
| 2672 | Maxwell Maser | 43.26 | 9 | B Min | BB: 39.79 (+3.47s | 8.0%) | Southwest Stars Swim Club | 06/11/2026 | 2026 RAFC Summer Solstice Invitational | |
| 2673 | Lincoln McGee | 43.26 | 9 | B Min | BB: 39.79 (+3.47s | 8.0%) | Jets Aquatic Club | 06/26/2026 | 2026 Dick Fadgen Tiger Classic | |
| 2674 | Pearson Saunders | 43.27 | 10 | B Min | BB: 39.79 (+3.48s | 8.0%) | Planet Swim Aquatics | 06/26/2026 | 2026 Planet Swim Summer Championships | |
| 2675 | Brooks Fitzpatrick | 43.27 | 7 | B Min | BB: 39.79 (+3.48s | 8.0%) | Enfinity Aquatic Club | 06/25/2026 | ONSA Independence Invitational Copied | |
| 2676 | Alejandro Rigual Osorno | 43.27 | 10 | B Min | BB: 39.79 (+3.48s | 8.0%) | Fast Falcons | 06/25/2026 | 2026 FAST Independence Invitational | |
| 2677 | Spartacus Szymanski | 43.28 | 9 | B Min | BB: 39.79 (+3.49s | 8.1%) | Swim Tampa Aquatics | 06/19/2026 | 2026 Lightning Invitational | |
| 2678 | Andrew Hitt | 43.28 | 10 | B Min | BB: 39.79 (+3.49s | 8.1%) | Life Time Oregon Swim Team | 06/05/2026 | 2026 CST Summer Invitational | |
| 2679 | Michel Opp | 43.29 | 10 | B Min | BB: 39.79 (+3.50s | 8.1%) | Sporting Jax Aquatic Club | 05/03/2025 | SwimRise IMX IMR Challenge | |
| 2680 | Harvey Yuan | 43.29 | 8 | B Min | BB: 39.79 (+3.50s | 8.1%) | Pacific Swim | 05/23/2026 | 2026 SI HSA 2 All Ages NTS May 23 24 | |
| 2681 | Nolan Austin | 43.29 | 9 | B Min | BB: 39.79 (+3.50s | 8.1%) | Bolles School Sharks | 06/18/2026 | 2026 June Classic | |
| 2682 | Boaz Mccabe | 43.30 | 9 | B Min | BB: 39.79 (+3.51s | 8.1%) | Cortez Water Dragons | 07/11/2025 | 2025 CO Western Slope LeagueChampionships | |
| 2683 | Conrad Hennen | 43.30 | 10 | B Min | BB: 39.79 (+3.51s | 8.1%) | Foxjets Swim Team | 06/19/2026 | 2026 MN MAN Red White Blue Invite Copied | |
| 2684 | Eli Bywater | 43.31 | 8 | B Min | BB: 39.79 (+3.52s | 8.1%) | South Davis Aquatics Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 2685 | Logan Walker | 43.31 | 9 | B Min | BB: 39.79 (+3.52s | 8.1%) | Fort Collins Area Swim Team | 06/05/2026 | 2026 CO FAST June Bonanza Open | |
| 2686 | Leaf Volschke | 43.31 | 9 | B Min | BB: 39.79 (+3.52s | 8.1%) | Valley Swim Team Phoenix | 05/17/2024 | HNVR Storm Surge 2024 | |
| 2687 | Bruno Rech | 43.31 | 8 | B Min | BB: 39.79 (+3.52s | 8.1%) | Lone Star Aquatic Club | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 2688 | Collis Mockon | 43.31 | 10 | B Min | BB: 39.79 (+3.52s | 8.1%) | Lakeside Swim Team | 06/04/2026 | 98th Ohio Valley Championships 2026 | |
| 2689 | Jayden Suh | 43.32 | 8 | B Min | BB: 39.79 (+3.53s | 8.1%) | Foxjets Swim Team | 06/11/2026 | 2026 MN AQJT Aquajets Summer Spectacular | |
| 2690 | Edison Cois | 43.32 | 10 | B Min | BB: 39.79 (+3.53s | 8.1%) | Life Time Oregon Swim Team | 06/12/2026 | 2026 THSC June Open | |
| 2691 | David Tan | 43.32 | 9 | B Min | BB: 39.79 (+3.53s | 8.1%) | Pacifica Sea Lions | 05/02/2026 | Alto Spring Jam CBA | |
| 2692 | Wyatt Howison | 43.33 | 10 | B Min | BB: 39.79 (+3.54s | 8.2%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | |
| 2693 | Ivan Orozco Lerma | 43.34 | 9 | B Min | BB: 39.79 (+3.55s | 8.2%) | El Paso Aqua Posse | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 2694 | Samuel Wright | 43.34 | 7 | B Min | BB: 39.79 (+3.55s | 8.2%) | Club Talon | 05/15/2026 | 2026 Officially Summer Invitational | |
| 2695 | Luca Ferraz de Toledo | 43.34 | 7 | B Min | BB: 39.79 (+3.55s | 8.2%) | South East Metro Sharks | 06/19/2026 | 2026 MN MAN Red White Blue Invite Copied | |
| 2696 | Calvin Littlejohn | 43.35 | 8 | B Min | BB: 39.79 (+3.56s | 8.2%) | Eugene City Swim Club | 06/13/2026 | 2026 Mike Morris Memorial Invitational Copi | |
| 2697 | Adam Kozhemiako | 43.36 | 8 | B Min | BB: 39.79 (+3.57s | 8.2%) | Seattle Metropolitan Aquatic C | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 2698 | Daniel McLain | 43.36 | 9 | B Min | BB: 39.79 (+3.57s | 8.2%) | Huntsville Swim Association | 04/18/2026 | HSA April LC Meet | |
| 2699 | Barry Ji | 43.37 | 10 | B Min | BB: 39.79 (+3.58s | 8.3%) | Waterloo Swimming | 06/06/2026 | 2026 ST ASC June Bug | |
| 2700 | Eugene McCarthy | 43.37 | 10 | B Min | BB: 39.79 (+3.58s | 8.3%) | Mighty Marlins Swim Club | 05/28/2026 | 2026 IE VS Apple Capital | |
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.