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 | |
|---|---|---|---|---|---|---|---|---|---|
| 601 | Benjamin Leger | 41.72 | 10 | A Min | AA: 40.19 (+1.53s | 3.7%) | Lynchburg YMCA Swim Team | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 602 | Ryu Ishibashi | 41.73 | 10 | A Min | AA: 40.19 (+1.54s | 3.7%) | Novi Sturgeons | 02/27/2026 | 2026 MCSA Junior Cup | |
| 603 | Yubo Wang | 41.73 | 10 | A Min | AA: 40.19 (+1.54s | 3.7%) | Laker Swim | 03/05/2026 | 2026 Florida Swimming FLAGS NORTH | |
| 604 | Cameron Cheng-Zhang | 41.73 | 10 | A Min | AA: 40.19 (+1.54s | 3.7%) | New Wave Swim Team | 02/14/2026 | 2026 TAC TITANS February Qualifier Meet | |
| 605 | David LI | 41.74 | 10 | A Min | AA: 40.19 (+1.55s | 3.7%) | Blue Team | 01/20/2024 | 2024 SCS All Star Festival | |
| 606 | Mason Yu | 41.76 | 10 | A Min | AA: 40.19 (+1.57s | 3.8%) | Qns Aquatic Club | 11/22/2025 | 2025 MR QNS Protect Ya Turkey Neck Invite | |
| 607 | Carter Prescher | 41.76 | 8 | A Min | AA: 40.19 (+1.57s | 3.8%) | All Star Aquatics | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 608 | Yangyang Xu | 41.77 | 10 | A Min | AA: 40.19 (+1.58s | 3.8%) | Pacific Dragons Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 609 | Keaton Visser | 41.78 | 10 | A Min | AA: 40.19 (+1.59s | 3.8%) | Byron Center Aquatics | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 610 | Gavin Liebson | 41.78 | 10 | A Min | AA: 40.19 (+1.59s | 3.8%) | Quince Orchard Swim Academy | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 611 | Beckett Blank | 41.78 | 9 | A Min | AA: 40.19 (+1.59s | 3.8%) | Nation\\\\\\'s Capital Swim Club | 12/04/2025 | 2025 RAYS Nutcracker Classic Copied | |
| 612 | Mateo Sison | 41.78 | 10 | A Min | AA: 40.19 (+1.59s | 3.8%) | San Ramon Valley Aquatics | 07/26/2025 | Zone 2 Summer Championships | |
| 613 | Lynn Wilson | 41.79 | 8 | A Min | AA: 40.19 (+1.60s | 3.8%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 614 | Ishaan Karunanayake | 41.79 | 10 | A Min | AA: 40.19 (+1.60s | 3.8%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 615 | Tate Robinson | 41.81 | 10 | A Min | AA: 40.19 (+1.62s | 3.9%) | Eagle Swimming Association | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 616 | Yixuan Zhu | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Pleasanton Seahawks | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 617 | Nathan Liu | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | First Colony Swim Team, Inc. | 01/31/2025 | 2025 Fleet Mardi Gras | |
| 618 | Owen Proud | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Huntsville Swim Association | 12/05/2025 | 2025 Holiday Classic | |
| 619 | Owen Yuk | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Nation\\\\\\'s Capital Swim Club | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 620 | Cameron Day | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | Mission Viejo Nadadores | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 621 | Aaron Kim | 41.82 | 10 | A Min | AA: 40.19 (+1.63s | 3.9%) | EL Paso Border Land Swim Team | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 622 | Lennox Luning | 41.83 | 9 | A Min | AA: 40.19 (+1.64s | 3.9%) | Naval Academy Aquatic Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 623 | Walker Lewis | 41.83 | 10 | A Min | AA: 40.19 (+1.64s | 3.9%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 624 | Santiago Diaz | 41.83 | 9 | A Min | AA: 40.19 (+1.64s | 3.9%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 625 | Alexander Jin | 41.84 | 10 | A Min | AA: 40.19 (+1.65s | 3.9%) | Csp Tideriders | 02/27/2026 | Ozark Division I Championship | |
| 626 | Reagan Chau | 41.85 | 10 | A Min | AA: 40.19 (+1.66s | 4.0%) | Ensworth Aquatics | 02/27/2026 | 2026 SE Southeastern Winter SC Championships | |
| 627 | Nick Scarpitti | 41.85 | 10 | A Min | AA: 40.19 (+1.66s | 4.0%) | Cincinnati Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 628 | Henry Zheng | 41.86 | 9 | A Min | AA: 40.19 (+1.67s | 4.0%) | Aquajets Swim Team | 01/30/2026 | 2026 MN MTKA TYR Team Challenge | |
| 629 | Hengyu Cao | 41.86 | 10 | A Min | AA: 40.19 (+1.67s | 4.0%) | Saline Swim Team | 03/14/2026 | 2026 SCY 10 Under Championship Meet | |
| 630 | Leo Morrissey | 41.86 | 10 | A Min | AA: 40.19 (+1.67s | 4.0%) | Tide Swimming | 01/09/2026 | 2026 757swim Splash And Dash | |
| 631 | Paxton Wilson | 41.86 | 9 | A Min | AA: 40.19 (+1.67s | 4.0%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 632 | Winston Du | 41.86 | 10 | A Min | AA: 40.19 (+1.67s | 4.0%) | Aquajets Swim Team | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 633 | Jair Ortega | 41.86 | 10 | A Min | AA: 40.19 (+1.67s | 4.0%) | Nitro Swimming | 01/31/2026 | 2026 ST NTRO Fiery Flames | |
| 634 | Quentin Lin | 41.87 | 9 | A Min | AA: 40.19 (+1.68s | 4.0%) | Eastern Nassau Aquatic Club | 11/28/2025 | 2025 MR LIE Thanksgiving Invitational | |
| 635 | Eli Lawson | 41.88 | 9 | A Min | AA: 40.19 (+1.69s | 4.0%) | Dolphin Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 636 | David Powell | 41.89 | 10 | A Min | AA: 40.19 (+1.70s | 4.1%) | Heartland Swim Assoc | 01/17/2026 | 2026 SBA All Ages A BB Meet | |
| 637 | Graham Messink | 41.90 | 10 | A Min | AA: 40.19 (+1.71s | 4.1%) | Egra Waves | 12/05/2025 | EGRA 2025 Winter Washout | |
| 638 | Kian Bahmani | 41.90 | 10 | A Min | AA: 40.19 (+1.71s | 4.1%) | Rockville Montgomery Swim Club | 12/11/2025 | 2025 Riley Eaton Holiday Invitational | |
| 639 | Santiago Diaz | 41.91 | 9 | A Min | AA: 40.19 (+1.72s | 4.1%) | Rockville Montgomery Swim Club | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 640 | Koa Tejwani | 41.92 | 9 | A Min | AA: 40.19 (+1.73s | 4.1%) | Jcc Waves | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 641 | Nicolas Guzman | 41.92 | 10 | A Min | AA: 40.19 (+1.73s | 4.1%) | Blue Marlins Of Hialeah Garden | 11/21/2025 | 2025 SoFlo Last Chance And Holiday Classic | |
| 642 | Cole Cinadr | 41.92 | 10 | A Min | AA: 40.19 (+1.73s | 4.1%) | Hudson Explorer Aquatic | 03/12/2026 | 2026 OH SC Junior Championships | |
| 643 | Jack Peterson | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Bend Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 644 | Ryder Carsey | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Greater Toledo Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 645 | Mason Wong | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Cavalier Aquatics/Piedmont Fam | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 646 | Ian Kang | 41.93 | 10 | A Min | AA: 40.19 (+1.74s | 4.1%) | Punahou Aquatics Institute | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 647 | William Martzke | 41.94 | 10 | A Min | AA: 40.19 (+1.75s | 4.2%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 02/27/2026 | 2026 Junior Cup | |
| 648 | Maddox Jordan | 41.94 | 10 | A Min | AA: 40.19 (+1.75s | 4.2%) | Prime Aquatics | 01/16/2026 | 2026 TNAQ JANUARY INVITATIONAL | |
| 649 | Luke Rowan | 41.95 | 10 | A Min | AA: 40.19 (+1.76s | 4.2%) | Club Husker | 02/20/2026 | 2026 MW Midwestern Age Group Short Course | |
| 650 | Christian Oh | 41.95 | 9 | A Min | AA: 40.19 (+1.76s | 4.2%) | Asphalt Green Unified Aquatics | 03/13/2026 | 2026 MR SC Junior Metropolitan 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.