USA Boys 10 & under - 50 Y Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 3551 | Chris Guan | 44.03 | 9 | B Min | BB: 42.89 (+1.14s | 2.6%) | South Snohomish Co Dolphins | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | |
| 3552 | Ethan Gordon | 44.03 | 10 | B Min | BB: 42.89 (+1.14s | 2.6%) | North Carolina Aquatic Club | 03/26/2026 | 2026 NCAC Spring Tar Heel States Copied | |
| 3553 | Chase Clark | 44.04 | 10 | B Min | BB: 42.89 (+1.15s | 2.6%) | Issaquah Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 3554 | Loui George | 44.04 | 8 | B Min | BB: 42.89 (+1.15s | 2.6%) | Camana Bay Aquatic Club | 11/06/2025 | 2025 TAC TITANS Big Southern Classic | |
| 3555 | Alexander Stepania | 44.04 | 9 | B Min | BB: 42.89 (+1.15s | 2.6%) | Bellevue Club Swim Team | 10/12/2024 | 2024 PN CSC Fall Classic Invitational | |
| 3556 | Grant Schmidlin | 44.04 | 8 | B Min | BB: 42.89 (+1.15s | 2.6%) | Commonwealth Swimming | 01/10/2026 | 2026 NE CS Winter Classic | |
| 3557 | Charles Seaman | 44.05 | 9 | B Min | BB: 42.89 (+1.16s | 2.6%) | Rockville Montgomery Swim Club | 01/16/2026 | 2026 RMSC January Intrasquad Meet | |
| 3558 | James Vista | 44.05 | 9 | B Min | BB: 42.89 (+1.16s | 2.6%) | New York Sharks Aquatics | 02/28/2026 | 2026 MR QNS I Know I Can Invitational | |
| 3559 | Clark Galyen | 44.05 | 10 | B Min | BB: 42.89 (+1.16s | 2.6%) | YMCA of Virginia\\\\\\'s Blue Ridge | 03/19/2026 | 2026 USRY Short Course Champs | |
| 3560 | Timothy Song | 44.05 | 10 | B Min | BB: 42.89 (+1.16s | 2.6%) | Nation\\\\\\'s Capital Swim Club | 10/10/2025 | 2025 PV October Open Claude Moore | |
| 3561 | Jacob Day | 44.05 | 10 | B Min | BB: 42.89 (+1.16s | 2.6%) | Montgomery Aquatic Race Club | 01/10/2025 | MAC 2025 Neon New Year Meet | |
| 3562 | Colson Hosford | 44.06 | 10 | B Min | BB: 42.89 (+1.17s | 2.7%) | Area Tallahassee Aquatic Club | 09/19/2025 | 2025 Tropic Like It S Hot Open | |
| 3563 | Graham Davis | 44.06 | 10 | B Min | BB: 42.89 (+1.17s | 2.7%) | Quince Orchard Swim Academy | 10/25/2025 | 2025 PAC 10 Under RockHopper Penguin Meet | |
| 3564 | Nicolas Wilkes | 44.06 | 9 | B Min | BB: 42.89 (+1.17s | 2.7%) | City of Mobile Swim Associatio | 10/04/2025 | 2025 CMSA Vance Rose Invitational | |
| 3565 | Adam Kao | 44.06 | 10 | B Min | BB: 42.89 (+1.17s | 2.7%) | Life Time Oregon Swim Team | 02/07/2026 | 2026 OR HEAT BC Blastoff | |
| 3566 | Easton Yu | 44.06 | 10 | B Min | BB: 42.89 (+1.17s | 2.7%) | Longhorn Aquatics | 10/11/2025 | 2025 ST WOW Great Pumpkin Plunge | |
| 3567 | Jonah Friedrich | 44.06 | 10 | B Min | BB: 42.89 (+1.17s | 2.7%) | SwimMAC Carolina | 01/23/2026 | 2026 NC SwimMAC Battle Of The Crown | |
| 3568 | Charles Seaman | 44.06 | 9 | B Min | BB: 42.89 (+1.17s | 2.7%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 3569 | Declan Jewell | 44.07 | 8 | B Min | BB: 42.89 (+1.18s | 2.7%) | Nova of Virginia | 12/05/2025 | NOVA December Dip | |
| 3570 | Luca Thompson | 44.07 | 10 | B Min | BB: 42.89 (+1.18s | 2.7%) | Bayside Aquatics | 02/06/2026 | 2026 Last Chance Qualifying Meet | |
| 3571 | Ben Iciek | 44.07 | 9 | B Min | BB: 42.89 (+1.18s | 2.7%) | Macedonia Manta Rays | 02/20/2026 | 2026 OH Akron SC Regional Championships | |
| 3572 | Aur Cannaviello Persiche | 44.07 | 9 | B Min | BB: 42.89 (+1.18s | 2.7%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 3573 | Kai Johnson | 44.07 | 10 | B Min | BB: 42.89 (+1.18s | 2.7%) | Tide Swimming | 01/09/2026 | 2026 757swim Splash And Dash | |
| 3574 | Jackson Luding | 44.08 | 8 | B Min | BB: 42.89 (+1.19s | 2.7%) | Asphalt Green Unified Aquatics | 01/17/2026 | 2026 MR AGUA MLK Invitational | |
| 3575 | Rhett Szymanski | 44.08 | 10 | B Min | BB: 42.89 (+1.19s | 2.7%) | Cardinal and Gold Aquatics | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 3576 | Thomas Gately | 44.08 | 9 | B Min | BB: 42.89 (+1.19s | 2.7%) | YMCA of the North Shore Sharks | 03/26/2026 | Destination Athlete Centennial Invite 2026 | |
| 3577 | Christian Kewley | 44.08 | 10 | B Min | BB: 42.89 (+1.19s | 2.7%) | Southwest Stars Swim Club | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 3578 | Harrison Eberle | 44.08 | 10 | B Min | BB: 42.89 (+1.19s | 2.7%) | Frederick Area Swim Team | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 3579 | Zakhar Biliavskyi | 44.08 | 8 | B Min | BB: 42.89 (+1.19s | 2.7%) | Tac Titans | 12/19/2025 | 2025 TAC TITANS Jingle Bells Meet | |
| 3580 | Ori Lowenthal | 44.08 | 9 | B Min | BB: 42.89 (+1.19s | 2.7%) | Front Range Barracudas | 04/17/2026 | 2026 CO CUDA April Pizza Meet | |
| 3581 | Bennett Hooks | 44.08 | 10 | B Min | BB: 42.89 (+1.19s | 2.7%) | Egra Waves | 01/10/2026 | 2026 Zeeland Winter Classic | |
| 3582 | Adrian Feng | 44.08 | 9 | B Min | BB: 42.89 (+1.19s | 2.7%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 3583 | Lucas Ding | 44.08 | 8 | B Min | BB: 42.89 (+1.19s | 2.7%) | Waterloo Swimming | 01/17/2026 | 2026 ST AQTX B Champs North | |
| 3584 | Aaron Yang | 44.09 | 10 | B Min | BB: 42.89 (+1.20s | 2.7%) | Wave Aquatics | 01/24/2026 | 2026 PN WAVE Winter Invitational Approved | |
| 3585 | Youcheng Yin | 44.09 | 9 | B Min | BB: 42.89 (+1.20s | 2.7%) | Arctic Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 3586 | Owen Cochrane | 44.09 | 9 | B Min | BB: 42.89 (+1.20s | 2.7%) | Catawba Valley Aquatic Club | 01/10/2026 | ATOM Frosty Invitational 2026 | |
| 3587 | Rio Gardi | 44.09 | 10 | B Min | BB: 42.89 (+1.20s | 2.7%) | Hills Hurricane Swimming | 07/10/2026 | Redwood Empire Swim League Championship | |
| 3588 | John Driver | 44.10 | 10 | B Min | BB: 42.89 (+1.21s | 2.7%) | Marshall County Swim Club | 02/06/2026 | 2026 SES Region 3 Champions | |
| 3589 | Callahan Calkins | 44.10 | 10 | B Min | BB: 42.89 (+1.21s | 2.7%) | Hydro Swim Club | 10/26/2025 | 2025 Hydro Halloween Pentathlon Copied | |
| 3590 | Sahil Singh Kumar | 44.10 | 8 | B Min | BB: 42.89 (+1.21s | 2.7%) | Nation\\\\\\'s Capital Swim Club | 10/18/2025 | 2025 AAC Fall Gator Mini Meet | |
| 3591 | Benjamin Gould | 44.10 | 10 | B Min | BB: 42.89 (+1.21s | 2.7%) | Mason Makos Swim Team | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 3592 | Wyatt Stoner | 44.10 | 9 | B Min | BB: 42.89 (+1.21s | 2.7%) | Annapolis Swim Club | 03/21/2026 | 2026 Maryland 9 10 B Championship Meet | |
| 3593 | Oliver Hall | 44.10 | 10 | B Min | BB: 42.89 (+1.21s | 2.7%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 3594 | Max Campbell | 44.11 | 10 | B Min | BB: 42.89 (+1.22s | 2.8%) | Powell Crosley YMCA | 02/19/2026 | 2026 OH CM SC Regional Championships | |
| 3595 | Hanhui Mei | 44.11 | 10 | B Min | BB: 42.89 (+1.22s | 2.8%) | Pacific Dragons Swim Team | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 3596 | Sebastian Dudenko | 44.11 | 9 | B Min | BB: 42.89 (+1.22s | 2.8%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 3597 | Wyatt Comfort | 44.11 | 9 | B Min | BB: 42.89 (+1.22s | 2.8%) | Eastmont | 12/06/2025 | 2025 IE VS Christmas Open | |
| 3598 | Adler Shen | 44.11 | 10 | B Min | BB: 42.89 (+1.22s | 2.8%) | Manta Rays | 03/27/2026 | 2026 MR Bronze Championships Central KBM | |
| 3599 | Timothy Wang | 44.11 | 10 | B Min | BB: 42.89 (+1.22s | 2.8%) | Cascadia Swimming | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 3600 | Ali Fadlallah | 44.12 | 9 | B Min | BB: 42.89 (+1.23s | 2.8%) | Greater Toledo Aquatic Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
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.