USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 701 | Levi Halbe | 42.21 | 10 | BB Min | A: 42.09 (+0.12s | 0.3%) | Nation\\\\\\'s Capital Swim Club | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 702 | Logan Nguyen | 42.21 | 10 | BB Min | A: 42.09 (+0.12s | 0.3%) | Potomac Marlins | 03/20/2026 | March Madness 2026 | |
| 703 | Jason Yin | 42.22 | 9 | BB Min | A: 42.09 (+0.13s | 0.3%) | Unattached | 11/15/2025 | Alto Nov 15 16 Fall Frolic | |
| 704 | Jayden Zhen | 42.22 | 10 | BB Min | A: 42.09 (+0.13s | 0.3%) | Adrienne C Nelson | 02/15/2025 | 2025 OR HS 6a 4 | |
| 705 | Conall Barrett | 42.22 | 9 | BB Min | A: 42.09 (+0.13s | 0.3%) | Upper Valley Aquatic Club | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 706 | Mason Folster | 42.22 | 10 | BB Min | A: 42.09 (+0.13s | 0.3%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 707 | Enzo Harter | 42.23 | 10 | BB Min | A: 42.09 (+0.14s | 0.3%) | Beaverton Area Aquatics Club | 10/17/2025 | 2025 CST Harvest Open | |
| 708 | Nathan Campbell | 42.23 | 9 | BB Min | A: 42.09 (+0.14s | 0.3%) | Southwestern Aquatics Team - S | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 709 | Michael Bevziuc | 42.23 | 9 | BB Min | A: 42.09 (+0.14s | 0.3%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 710 | Daniel Ferroni | 42.23 | 10 | BB Min | A: 42.09 (+0.14s | 0.3%) | Jersey Wahoos | 11/07/2025 | 2025 Mid Atlantic AG Championship Showdown | |
| 711 | Kaizen Toung | 42.24 | 9 | BB Min | A: 42.09 (+0.15s | 0.4%) | Orinda Aquatics | 11/08/2025 | Brentwood Seawolves SCY C B BB+ | |
| 712 | Gavin Samad | 42.24 | 9 | BB Min | A: 42.09 (+0.15s | 0.4%) | Unified Aquatics Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 713 | Rhyne Miller | 42.24 | 10 | BB Min | A: 42.09 (+0.15s | 0.4%) | Mecklenburg Swim Association | 01/23/2026 | 2026 TEAM Arena Western Open Copied | |
| 714 | Brayden Lee | 42.24 | 10 | BB Min | A: 42.09 (+0.15s | 0.4%) | Dedham Health Hydra | 03/20/2026 | 2026 NE NSSC March Madness At MIT | |
| 715 | Alex Yang | 42.26 | 10 | BB Min | A: 42.09 (+0.17s | 0.4%) | Three Village Swim Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 716 | Collin Boyle | 42.27 | 10 | BB Min | A: 42.09 (+0.18s | 0.4%) | Herndon Aquatic Club | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 717 | Phillippe Choi | 42.27 | 10 | BB Min | A: 42.09 (+0.18s | 0.4%) | Blast Sharks | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 718 | Arieh Elias | 42.29 | 10 | BB Min | A: 42.09 (+0.20s | 0.5%) | Unattached | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 719 | Russell Nguyen | 42.30 | 10 | BB Min | A: 42.09 (+0.21s | 0.5%) | City of Mobile Swim Associatio | 02/27/2026 | 2026 SE Southeastern Winter SC Championships | |
| 720 | Jordan Melenbrink | 42.31 | 9 | BB Min | A: 42.09 (+0.22s | 0.5%) | Oly Swimming | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 721 | William Yiengst | 42.32 | 10 | BB Min | A: 42.09 (+0.23s | 0.5%) | Machine Aquatics | 02/13/2026 | 39th Black History Swim Meet | |
| 722 | Tanner Langsdale | 42.33 | 10 | BB Min | A: 42.09 (+0.24s | 0.6%) | York Swim Club of Northern Vir | 03/20/2026 | March Madness 2026 | |
| 723 | Franco Martinez | 42.34 | 10 | BB Min | A: 42.09 (+0.25s | 0.6%) | EL Paso Border Land Swim Team | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 724 | Jake McNair | 42.34 | 9 | BB Min | A: 42.09 (+0.25s | 0.6%) | Bellevue Club Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 725 | Mason Kim | 42.35 | 10 | BB Min | A: 42.09 (+0.26s | 0.6%) | Maywood Sparks Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 726 | Henry Lampley | 42.35 | 9 | BB Min | A: 42.09 (+0.26s | 0.6%) | YMCA of Florida\\\\\\'s First Coast | 01/30/2026 | 2026 BSS February Classic Copied | |
| 727 | Dmitry Klyukin | 42.35 | 10 | BB Min | A: 42.09 (+0.26s | 0.6%) | Tide Swimming | 02/13/2026 | 2026 Southeast District 9 12 Championship | |
| 728 | Johnny Rudd | 42.36 | 9 | BB Min | A: 42.09 (+0.27s | 0.6%) | Jupiter Dragons Swim Team | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 729 | Aiden Sanchez | 42.36 | 7 | BB Min | A: 42.09 (+0.27s | 0.6%) | Saint Petersburg Aquatics | 11/21/2025 | SPA PYP NOVEMBER 2025 | |
| 730 | David Xiong | 42.37 | 8 | BB Min | A: 42.09 (+0.28s | 0.7%) | Arctic Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 731 | Aedan Allen | 42.38 | 10 | BB Min | A: 42.09 (+0.29s | 0.7%) | Lone Star Aquatic Club | 02/06/2026 | 2026 ST AQTX STX Champs North | |
| 732 | Theodore Hovord | 42.38 | 10 | BB Min | A: 42.09 (+0.29s | 0.7%) | Club Wolverine | 01/16/2026 | SLA Arctic Blast 2026 | |
| 733 | Noah Sleeman | 42.38 | 10 | BB Min | A: 42.09 (+0.29s | 0.7%) | Nova of Virginia | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 734 | Andres Gomez | 42.39 | 10 | BB Min | A: 42.09 (+0.30s | 0.7%) | South Florida Aquatic Club | 09/05/2025 | 2025 Michael S Memorial Meet | |
| 735 | Hengrui Cao | 42.39 | 10 | BB Min | A: 42.09 (+0.30s | 0.7%) | Saline Swim Team | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 736 | Noah Bello | 42.40 | 10 | BB Min | A: 42.09 (+0.31s | 0.7%) | Riverview Buccaneers Swim Team | 12/06/2025 | 2025 26 Super Fast And Furious Prelim Final | |
| 737 | Marcus Kim | 42.40 | 10 | BB Min | A: 42.09 (+0.31s | 0.7%) | Asphalt Green Unified Aquatics | 10/11/2025 | 2025 MR AGUA Season Starter Invitational | |
| 738 | Ryan gao | 42.40 | 10 | BB Min | A: 42.09 (+0.31s | 0.7%) | Long Island Aquatic Club | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 739 | Mason Sovich | 42.41 | 9 | BB Min | A: 42.09 (+0.32s | 0.8%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 740 | Jeffrey Hill | 42.41 | 10 | BB Min | A: 42.09 (+0.32s | 0.8%) | Saint Andrew\\\\\\'s Aquatics | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 741 | Michael Evans | 42.41 | 10 | BB Min | A: 42.09 (+0.32s | 0.8%) | Sea Dragon Aquatics | 03/26/2026 | Destination Athlete Centennial Invite 2026 | |
| 742 | Nolan Ruther | 42.41 | 10 | BB Min | A: 42.09 (+0.32s | 0.8%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 743 | Edward Ng | 42.42 | 10 | BB Min | A: 42.09 (+0.33s | 0.8%) | Tac Titans | 11/06/2025 | 2025 TAC TITANS Big Southern Classic | |
| 744 | Aiden Kiatrungrit | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | South San Francisco Aquatics | 12/06/2025 | DCD Winter Holiday Splash CBA+ | |
| 745 | Hawx Hansen | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | Wasatch Front Fish Market | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 746 | Grant Zimmermann | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | YMCA of the Triangle Area Swim | 03/19/2026 | 2026 USRY Short Course Champs | |
| 747 | William Massie | 42.43 | 10 | BB Min | A: 42.09 (+0.34s | 0.8%) | O\\\\\\'Neal Aquatics | 03/20/2026 | 2026 STAR Tar Heel States | |
| 748 | Daniel Nagaoka | 42.44 | 10 | BB Min | A: 42.09 (+0.35s | 0.8%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 749 | Leon Oka | 42.44 | 10 | BB Min | A: 42.09 (+0.35s | 0.8%) | Westchester Aquatic Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 750 | Herman Wollman | 42.44 | 10 | BB Min | A: 42.09 (+0.35s | 0.8%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman 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.