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 | 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 | |
| 1702 | Aydin Alam | 48.39 | 10 | BB Min | A: 43.09 (+5.30s | 11.0%) | New Albany Aquatics Club | 07/10/2026 | 2026 OH Central LC Regional Champs | |
| 1703 | 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 | |
| 1704 | 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 | |
| 1705 | Lucas Bunge | 48.40 | 8 | BB Min | A: 43.09 (+5.31s | 11.0%) | Nova of Virginia | 06/25/2026 | LC Central District Champs | |
| 1706 | Dashel Archer | 48.40 | 10 | BB Min | A: 43.09 (+5.31s | 11.0%) | Evergreen Hurricanes | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 1707 | 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 | |
| 1708 | Mars Meihack | 48.41 | 10 | BB Min | A: 43.09 (+5.32s | 11.0%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 1709 | Benjamin Jameson | 48.42 | 10 | BB Min | A: 43.09 (+5.33s | 11.0%) | Wyckoff YMCA | 05/30/2026 | 2026 HACY Summer Solstice | |
| 1710 | Oliver Bark | 48.43 | 9 | BB Min | A: 43.09 (+5.34s | 11.0%) | Annapolis Swim Club | 07/29/2026 | 2026 MD LSC LC Championship | |
| 1711 | Henry Giddings | 48.43 | 10 | BB Min | A: 43.09 (+5.34s | 11.0%) | Cincinnati Marlins | 07/10/2026 | 2026 OH SW LC Regional Champs | |
| 1712 | Larson Memont | 48.43 | 9 | BB Min | A: 43.09 (+5.34s | 11.0%) | Andover-North Andover YMCA Hur | 07/11/2026 | 2026 NE YNS July Last Chance Meet | |
| 1713 | August Baikauskas | 48.44 | 9 | BB Min | A: 43.09 (+5.35s | 11.0%) | Loyola Blakefield Aquatics | 07/29/2026 | 2026 MD LSC LC Championship | |
| 1714 | 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 | |
| 1715 | Rolen Totura | 48.45 | 9 | BB Min | A: 43.09 (+5.36s | 11.1%) | Springfield YMCA Swim Team | 06/26/2026 | 88th CSP Summer Invitational | |
| 1716 | Caleb Lau | 48.46 | 9 | BB Min | A: 43.09 (+5.37s | 11.1%) | Dynamo Swim Club | 06/26/2026 | 2026 HSA June Invitational | |
| 1717 | Raphael Macar | 48.46 | 9 | BB Min | A: 43.09 (+5.37s | 11.1%) | Peddie Aquatic Association | 06/05/2026 | 2026 XCEL Meet Of XCellence | |
| 1718 | Eric Wu | 48.46 | 10 | BB Min | A: 43.09 (+5.37s | 11.1%) | Florida Atlantic Aquatics | 07/10/2026 | 2026 FG LCM BB Champs North | |
| 1719 | 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 | |
| 1720 | 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 | |
| 1721 | 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 | |
| 1722 | Alexander Zavala | 48.47 | 9 | BB Min | A: 43.09 (+5.38s | 11.1%) | Tuna Swim Club | 07/17/2026 | 2026 MN TUNA LC MRC | |
| 1723 | Joseph Leach | 48.47 | 10 | BB Min | A: 43.09 (+5.38s | 11.1%) | Highlands Ranch Aquatics | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 1724 | Ethan Yang | 48.47 | 9 | BB Min | A: 43.09 (+5.38s | 11.1%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1725 | 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 | |
| 1726 | Declan Brennan | 48.48 | 9 | BB Min | A: 43.09 (+5.39s | 11.1%) | Peddie Aquatic Association | 05/02/2026 | 2026 STAC Thank You Mom | |
| 1727 | Taylor Kent | 48.49 | 10 | BB Min | A: 43.09 (+5.40s | 11.1%) | Birmingham Swim League | 04/18/2026 | 2026 Carson Muir Cowgirl Classic | |
| 1728 | George Bilyk | 48.49 | 9 | BB Min | A: 43.09 (+5.40s | 11.1%) | Issaquah Swim Team | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 1729 | Enzo Rodrigues | 48.49 | 10 | BB Min | A: 43.09 (+5.40s | 11.1%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 1730 | 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 | |
| 1731 | 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 | |
| 1732 | Matvii Medvediev | 48.50 | 9 | BB Min | A: 43.09 (+5.41s | 11.2%) | Tornadoes Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 1733 | Rhys Mehta | 48.50 | 10 | BB Min | A: 43.09 (+5.41s | 11.2%) | Tualatin Hills Swim Club | 06/12/2026 | 2026 THSC June Open | |
| 1734 | 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 | |
| 1735 | Parker Widell | 48.53 | 9 | BB Min | A: 43.09 (+5.44s | 11.2%) | Unattached | 06/05/2026 | 2026 TAMPA BAY SWIM CLASSIC | |
| 1736 | Derek Nichols | 48.53 | 10 | 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 | |
| 1737 | Dylan Jablonski | 48.53 | 8 | BB Min | A: 43.09 (+5.44s | 11.2%) | Swim Fort Lauderdale | 07/10/2026 | 2026 FG LCM BB Champs North | |
| 1738 | 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 | |
| 1739 | Oliver Li | 48.54 | 10 | BB Min | A: 43.09 (+5.45s | 11.2%) | Eastside Aquatic Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 1740 | Hudson Goodrich | 48.55 | 9 | BB Min | A: 43.09 (+5.46s | 11.2%) | Denver Swim Academy | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 1741 | Silas Slevin | 48.55 | 9 | BB Min | A: 43.09 (+5.46s | 11.2%) | Lakeside Swim Team | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 1742 | 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 | |
| 1743 | 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 | |
| 1744 | Taenam Oh jr | 48.56 | 9 | BB Min | A: 43.09 (+5.47s | 11.3%) | Bolles School Sharks | 07/24/2026 | 2026 Area 1 LCM Championships | |
| 1745 | Owen Wallin | 48.57 | 8 | BB Min | A: 43.09 (+5.48s | 11.3%) | Swim Tampa Aquatics | 06/05/2026 | 2026 TAMPA BAY SWIM CLASSIC | |
| 1746 | Christopher Scheetz | 48.58 | 9 | BB Min | A: 43.09 (+5.49s | 11.3%) | COSA Swimming | 06/05/2026 | 2026 COSA Long Couse Open | |
| 1747 | Aiden Killion | 48.59 | 10 | BB Min | A: 43.09 (+5.50s | 11.3%) | Marlins Of Raleigh | 04/25/2026 | 2026 NCAC Quad Meet | |
| 1748 | Archer Dary | 48.59 | 9 | BB Min | A: 43.09 (+5.50s | 11.3%) | Carolina Aquatic Team | 06/18/2026 | 2026 Tennessee Aquatics June Invitational | |
| 1749 | Connor Hilton | 48.60 | 9 | BB Min | A: 43.09 (+5.51s | 11.3%) | SwimRVA | 05/29/2026 | 2026 SwimRVA Success Bell | |
| 1750 | Sean Tangmunkong | 48.60 | 9 | BB Min | A: 43.09 (+5.51s | 11.3%) | Unattached | 06/26/2026 | 2026 NE YNS June Prelims Finals Meet | |
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.