USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1601 | Nino Arndt | 32.66 | 10 | BB Min | A: 31.09 (+1.57s | 4.8%) | Upper Main Line YMCA | 12/11/2025 | 2025 East Coast WinterFest | |
| 1602 | Wynn Kitsadaviseksak | 32.66 | 10 | BB Min | A: 31.09 (+1.57s | 4.8%) | Hills Hurricane Swimming | 07/10/2026 | Redwood Empire Swim League Championship | |
| 1603 | Jonathan Short | 32.66 | 10 | BB Min | A: 31.09 (+1.57s | 4.8%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1604 | Evan Willis | 32.67 | 10 | BB Min | A: 31.09 (+1.58s | 4.8%) | Madison Swimming Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1605 | Samuel Williams | 32.67 | 9 | BB Min | A: 31.09 (+1.58s | 4.8%) | Battle Ground High School | 02/13/2026 | 2026 District IV 3A 4A Mens Championships | |
| 1606 | Alexander Davidson | 32.67 | 8 | BB Min | A: 31.09 (+1.58s | 4.8%) | Tri-Y Swim Club | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 1607 | Qifan Gong | 32.67 | 9 | BB Min | A: 31.09 (+1.58s | 4.8%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 1608 | Eason Kim | 32.67 | 9 | BB Min | A: 31.09 (+1.58s | 4.8%) | All Star Aquatics | 12/11/2025 | 2025 Riley Eaton Holiday Invitational | |
| 1609 | Daniel Popko | 32.67 | 9 | BB Min | A: 31.09 (+1.58s | 4.8%) | Matchpoint Nyc | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 1610 | Sava Sikirica | 32.68 | 10 | BB Min | A: 31.09 (+1.59s | 4.9%) | Suburban Seahawks Club | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 1611 | Forest Hastings | 32.68 | 10 | BB Min | A: 31.09 (+1.59s | 4.9%) | Roseburg High School | 02/14/2025 | 2025 OR HS 6A 7 | |
| 1612 | Grant Zimmermann | 32.68 | 10 | BB Min | A: 31.09 (+1.59s | 4.9%) | YMCA of the Triangle Area Swim | 01/23/2026 | GCY Winter Meet 2026 | |
| 1613 | Ian Susanto | 32.68 | 9 | BB Min | A: 31.09 (+1.59s | 4.9%) | Legacy Aquatics | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 1614 | Asher Caponera | 32.68 | 9 | BB Min | A: 31.09 (+1.59s | 4.9%) | Florida Atlantic Aquatics | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 1615 | Caleb Shepler | 32.69 | 9 | BB Min | A: 31.09 (+1.60s | 4.9%) | Motor City Aquatics | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 1616 | George Yu | 32.69 | 10 | BB Min | A: 31.09 (+1.60s | 4.9%) | Santa Clara Swim Club | 12/05/2025 | Zone 1S Year End Age Group Champs Minus Meet | |
| 1617 | Brian Yu | 32.69 | 10 | BB Min | A: 31.09 (+1.60s | 4.9%) | Dare Aquatics | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 1618 | Jake McNair | 32.69 | 9 | BB Min | A: 31.09 (+1.60s | 4.9%) | Bellevue Club Swim Team | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 1619 | Keller Cox | 32.70 | 10 | BB Min | A: 31.09 (+1.61s | 4.9%) | All Star Aquatics | 02/13/2026 | 2026 ASA President S Day Classic | |
| 1620 | Luca DeTillio | 32.70 | 10 | BB Min | A: 31.09 (+1.61s | 4.9%) | Bolles School Sharks | 02/20/2026 | 2026 Area 1 Spring Championships | |
| 1621 | Ethan Gaffin | 32.70 | 9 | BB Min | A: 31.09 (+1.61s | 4.9%) | Unattached | 04/10/2026 | 2026 ST SASA Sombrero Series Showdown | |
| 1622 | Aaron Kim | 32.70 | 10 | BB Min | A: 31.09 (+1.61s | 4.9%) | EL Paso Border Land Swim Team | 12/19/2025 | 2025 BD Leo Cancellare Memorial Swim Meet | |
| 1623 | Liam O'Brien | 32.70 | 9 | BB Min | A: 31.09 (+1.61s | 4.9%) | Walnut Creek Aquabears | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 1624 | Nikoloz Zhorzholiani | 32.71 | 10 | BB Min | A: 31.09 (+1.62s | 5.0%) | Seattle Metropolitan Aquatic C | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1625 | Lucas Ni | 32.71 | 9 | BB Min | A: 31.09 (+1.62s | 5.0%) | Makos Aquatics Club of Gainesv | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 1626 | Everett Beichner | 32.71 | 9 | BB Min | A: 31.09 (+1.62s | 5.0%) | Machine Aquatics | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 1627 | Preston Tran | 32.71 | 10 | BB Min | A: 31.09 (+1.62s | 5.0%) | Irvine Novaquatics | 02/14/2025 | 2025 CCS SCY AGC | |
| 1628 | Jonathan Li | 32.72 | 8 | BB Min | A: 31.09 (+1.63s | 5.0%) | Brea Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 1629 | Palmantonio Semerano | 32.72 | 10 | BB Min | A: 31.09 (+1.63s | 5.0%) | Belen Jesuit Preparatory | 10/17/2025 | 2025 Belen Jesuit Invitational | |
| 1630 | Nick Scarpitti | 32.72 | 10 | BB Min | A: 31.09 (+1.63s | 5.0%) | Cincinnati Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1631 | Evan Wik | 32.72 | 9 | BB Min | A: 31.09 (+1.63s | 5.0%) | Southwest Stars Swim Club | 02/21/2026 | 2026 SLAC Last Chance To Dance Invitational | |
| 1632 | Corban Williams | 32.73 | 9 | BB Min | A: 31.09 (+1.64s | 5.0%) | Selah | 01/10/2026 | 2026 Kentridge High School Invitational Obse | |
| 1633 | William Heath | 32.73 | 10 | BB Min | A: 31.09 (+1.64s | 5.0%) | YMCA of Greater Nashua Storm | 10/10/2025 | 2025 NE CRA October Distance Specialty Meet | |
| 1634 | Kenneth Huang | 32.73 | 10 | BB Min | A: 31.09 (+1.64s | 5.0%) | Charles River Aquatics | 12/11/2025 | 2025 NE CRA Winter Invitational | |
| 1635 | Charles Sundberg | 32.73 | 10 | BB Min | A: 31.09 (+1.64s | 5.0%) | Unattached | 07/10/2026 | Redwood Empire Swim League Championship | |
| 1636 | Andrick McDermott | 32.73 | 10 | BB Min | A: 31.09 (+1.64s | 5.0%) | Nation\\\\\\'s Capital Swim Club | 01/10/2026 | 2026 MAKO POLAR PLUNGE | |
| 1637 | Elliott Renner | 32.73 | 10 | BB Min | A: 31.09 (+1.64s | 5.0%) | Upper Arlington Swim Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1638 | Conrad Shwe | 32.74 | 9 | BB Min | A: 31.09 (+1.65s | 5.0%) | Clovis Swim Club | 01/10/2026 | 2026 Clovis Swim Club Winter Open | |
| 1639 | Luka O'Brien | 32.74 | 10 | BB Min | A: 31.09 (+1.65s | 5.0%) | The Woodlands Swim Team | 10/25/2024 | 2024 TWST Halloween Meet | |
| 1640 | Lucas Panez | 32.74 | 10 | BB Min | A: 31.09 (+1.65s | 5.0%) | Heritage Aquatic Team | 02/20/2026 | 2026 FG SCY BB Championships (NORTH) | |
| 1641 | Owen Ozkul | 32.75 | 9 | BB Min | A: 31.09 (+1.66s | 5.1%) | Empire Swimming | 07/30/2026 | 2026 NE CRA Prelim Final SCY Meet | |
| 1642 | Robert Bates | 32.76 | 9 | BB Min | A: 31.09 (+1.67s | 5.1%) | Trident Aquatic Club | 03/13/2026 | 2026 MR SC Junior Metropolitan Championships | |
| 1643 | Nolan Porras | 32.76 | 9 | BB Min | A: 31.09 (+1.67s | 5.1%) | Long Island Express | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 1644 | Braden Dunlap | 32.76 | 9 | BB Min | A: 31.09 (+1.67s | 5.1%) | Naval Academy Aquatic Club | 03/05/2026 | 2026 MD LSC 14 U Championships | |
| 1645 | Johnathan Wang | 32.76 | 9 | BB Min | A: 31.09 (+1.67s | 5.1%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 1646 | Henry Mertz | 32.77 | 10 | BB Min | A: 31.09 (+1.68s | 5.1%) | Victory Lane Aquatic Club | 03/21/2026 | 2026 MAKO SPRING FLING | |
| 1647 | Robert Mello | 32.77 | 10 | BB Min | A: 31.09 (+1.68s | 5.1%) | Excel Aquatics | 12/05/2025 | 2025 Beaman Toyota Meet Of Champs | |
| 1648 | Henson Terrill | 32.77 | 10 | BB Min | A: 31.09 (+1.68s | 5.1%) | Hydro Elite Aquatic Team | 12/20/2024 | 2024 Gulf Fall Champs (SHRK) | |
| 1649 | Thomas Prochazka | 32.77 | 10 | BB Min | A: 31.09 (+1.68s | 5.1%) | East Coast Aquatic Team | 02/13/2026 | 2026 Southeast District 9 12 Championship | |
| 1650 | Matthew Garcia Castillo | 32.78 | 10 | BB Min | A: 31.09 (+1.69s | 5.2%) | Greater Tampa Swim Association | 04/10/2026 | 2026 GTSA TYR Spring Championship | |
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.