USA Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1701 | Jonah Osborn | 48.33 | 9 | BB Min | A: 43.09 (+5.24s | 10.8%) | Tac Titans | 07/05/2026 | 2026 TAC July Qualifier Meet | |
| 1702 | Ellis Houghton | 48.34 | 8 | BB Min | A: 43.09 (+5.25s | 10.9%) | Georgia Coastal Aquatic Team | 05/23/2025 | EAJ Mayhem 2025 | |
| 1703 | Arthur Dodington | 48.35 | 9 | BB Min | A: 43.09 (+5.26s | 10.9%) | Edina Swim Club | 05/28/2026 | 2026 MN WOLF HUFF N PUFF INVITE | |
| 1704 | Chris Oh | 48.35 | 9 | BB Min | A: 43.09 (+5.26s | 10.9%) | Crimson Aquatics | 06/12/2026 | 2026 NE CS Summer Solstice | |
| 1705 | Moss Fano | 48.36 | 9 | BB Min | A: 43.09 (+5.27s | 10.9%) | Team Greenville | 06/12/2025 | Holtrey Summer Classic | |
| 1706 | Matthew Fernandez | 48.36 | 9 | BB Min | A: 43.09 (+5.27s | 10.9%) | Blue Marlins Of Hialeah Garden | 04/18/2026 | SCS Under The Sun Invitational | |
| 1707 | Hudson Sydor | 48.36 | 8 | BB Min | A: 43.09 (+5.27s | 10.9%) | SwimMAC Carolina | 05/01/2026 | 2026 NC SwimMAC Spring Splash | |
| 1708 | Neeson Ayers | 48.36 | 8 | BB Min | A: 43.09 (+5.27s | 10.9%) | Pikes Peak Athletics | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 1709 | Kieran Wilson | 48.37 | 10 | BB Min | A: 43.09 (+5.28s | 10.9%) | Northeast Family YMCA | 05/08/2026 | 2026 Cardinal Aquatics Summer Throwdown | |
| 1710 | Marcus Wang | 48.38 | 10 | BB Min | A: 43.09 (+5.29s | 10.9%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 1711 | Arjun Jois | 48.38 | 8 | BB Min | A: 43.09 (+5.29s | 10.9%) | Houston Bridge Bats | 06/14/2025 | CCLR CEM Summer Beach Bash LCM Unclassified | |
| 1712 | Bryan Moore | 48.38 | 10 | BB Min | A: 43.09 (+5.29s | 10.9%) | Watauga Swim Team | 06/19/2026 | 19th Annual Bob Pratt Invitational Copied | |
| 1713 | Arick Yuan | 48.39 | 10 | BB Min | A: 43.09 (+5.30s | 11.0%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1714 | Hongyi Shu | 48.40 | 9 | BB Min | A: 43.09 (+5.31s | 11.0%) | Tac Titans | 05/22/2026 | 2026 TAC TITANS Memorial Day Meet | |
| 1715 | Alexander Bell | 48.40 | 10 | BB Min | A: 43.09 (+5.31s | 11.0%) | Stingrays Swim Team | 05/01/2026 | 2026 Helen Wang Sunflower Classic | |
| 1716 | Isaiah Bridge | 48.40 | 10 | BB Min | A: 43.09 (+5.31s | 11.0%) | Redmond Aquatic Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 1717 | Dashel Archer | 48.40 | 10 | BB Min | A: 43.09 (+5.31s | 11.0%) | Evergreen Hurricanes | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 1718 | Jack Cohen | 48.41 | 10 | BB Min | A: 43.09 (+5.32s | 11.0%) | Class Aquatics | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 1719 | Bruce Chou | 48.41 | 10 | BB Min | A: 43.09 (+5.32s | 11.0%) | Jbarracudas Swim Team | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 1720 | Mars Meihack | 48.41 | 9 | BB Min | A: 43.09 (+5.32s | 11.0%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 1721 | Luther Kim | 48.44 | 10 | BB Min | A: 43.09 (+5.35s | 11.0%) | Sea to Desert Swim Association | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 1722 | James Coble | 48.44 | 10 | BB Min | A: 43.09 (+5.35s | 11.0%) | Tennessee Aquatics | 04/24/2026 | 2026 ARENA Long Course Invitational Meet | |
| 1723 | Rolen Totura | 48.45 | 8 | BB Min | A: 43.09 (+5.36s | 11.1%) | Springfield YMCA Swim Team | 06/26/2026 | 88th CSP Summer Invitational | |
| 1724 | Caleb Lau | 48.46 | 9 | BB Min | A: 43.09 (+5.37s | 11.1%) | Dynamo Swim Club | 06/26/2026 | 2026 HSA June Invitational | |
| 1725 | Kawika Cox | 48.46 | 10 | BB Min | A: 43.09 (+5.37s | 11.1%) | Kamehameha Swim Club | 06/06/2026 | 2026 15th Annual Wada Rainbow Invitational | |
| 1726 | Tyler Lu | 48.46 | 10 | BB Min | A: 43.09 (+5.37s | 11.1%) | Tac Titans | 06/11/2026 | 2026 CMC Triangle Classic Meet | |
| 1727 | Hohyeon Cho | 48.47 | 10 | BB Min | A: 43.09 (+5.38s | 11.1%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1728 | Jasper Zhong | 48.47 | 8 | BB Min | A: 43.09 (+5.38s | 11.1%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 1729 | Ethan Yang | 48.47 | 8 | BB Min | A: 43.09 (+5.38s | 11.1%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1730 | Nicolas Bastida Gonzalez | 48.47 | 10 | BB Min | A: 43.09 (+5.38s | 11.1%) | Titanes de Tym | 05/02/2025 | 2025 ST 22nd Annual Cinco De Mayo | |
| 1731 | Joseph Leach | 48.47 | 9 | BB Min | A: 43.09 (+5.38s | 11.1%) | Highlands Ranch Aquatics | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 1732 | Dean Kosiorek | 48.47 | 8 | BB Min | A: 43.09 (+5.38s | 11.1%) | Dedham Health Hydra | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 1733 | Enzo Rodrigues | 48.49 | 9 | BB Min | A: 43.09 (+5.40s | 11.1%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 1734 | Taylor Kent | 48.49 | 9 | BB Min | A: 43.09 (+5.40s | 11.1%) | Birmingham Swim League | 04/18/2026 | 2026 Carson Muir Cowgirl Classic | |
| 1735 | Mason Park | 48.49 | 10 | BB Min | A: 43.09 (+5.40s | 11.1%) | Auburn Aquatics | 05/16/2026 | 2026 Opelika Open | |
| 1736 | Brendan Moore | 48.50 | 10 | BB Min | A: 43.09 (+5.41s | 11.2%) | Perry Aquatic Club | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 1737 | Grayson Julien | 48.50 | 10 | BB Min | A: 43.09 (+5.41s | 11.2%) | South Valley Makos | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 1738 | Mo Chen | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 1739 | Rhys Mehta | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June Open | |
| 1740 | Connor Jacob | 48.52 | 8 | BB Min | A: 43.09 (+5.43s | 11.2%) | Raleigh Swimming Association | 06/26/2026 | 2026 MOR Long Course Qualifier | |
| 1741 | Parker Widell | 48.53 | 9 | BB Min | A: 43.09 (+5.44s | 11.2%) | Unattached | 06/05/2026 | 2026 TAMPA BAY SWIM CLASSIC | |
| 1742 | Derek Nichols | 48.53 | 9 | BB Min | A: 43.09 (+5.44s | 11.2%) | Alamo Area Aquatic Association | 07/25/2025 | 2025 ST AAAA NE LC End Of Season Splash | |
| 1743 | River Wilkinson | 48.54 | 10 | BB Min | A: 43.09 (+5.45s | 11.2%) | North Coast Aquatics | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 1744 | Noah Olusanya | 48.54 | 9 | BB Min | A: 43.09 (+5.45s | 11.2%) | Wahoos of Jacksonville | 06/26/2026 | 2026 Planet Swim Summer Championships | |
| 1745 | Wyatt Flynn | 48.54 | 10 | BB Min | A: 43.09 (+5.45s | 11.2%) | Raleigh Swimming Association | 06/13/2026 | 2026 MOR Liberty Meet | |
| 1746 | Ziyan Rong | 48.54 | 10 | BB Min | A: 43.09 (+5.45s | 11.2%) | Kingfish Swimming Medfield | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 1747 | Silas Slevin | 48.55 | 9 | BB Min | A: 43.09 (+5.46s | 11.2%) | Lakeside Swim Team | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 1748 | Graham Talton | 48.56 | 10 | BB Min | A: 43.09 (+5.47s | 11.3%) | Enfinity Aquatic Club | 04/17/2026 | 2026 STAR April Friday Night At The Races | |
| 1749 | William Rickert | 48.56 | 8 | BB Min | A: 43.09 (+5.47s | 11.3%) | South Orange County Aquatics | 06/11/2026 | 2026 SCS June AG Invite | |
| 1750 | Boone Day | 48.56 | 8 | BB Min | A: 43.09 (+5.47s | 11.3%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
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.