USA Boys 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1701 | Mo Chen | 39.87 | 9 | B Min | BB: 39.79 (+0.08s | 0.2%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 1702 | Rufus Nagygyorgy | 39.88 | 10 | B Min | BB: 39.79 (+0.09s | 0.2%) | Swim Fort Lauderdale | 06/17/2026 | Swim Fort Lauderdale Speedo Summer Classic 26 | |
| 1703 | Guillermo Dinares Cardenal | 39.88 | 8 | B Min | BB: 39.79 (+0.09s | 0.2%) | Vashon Seals Swim Team | 06/14/2025 | 2025 IST June Invtational | |
| 1704 | Owen Hayes | 39.88 | 10 | B Min | BB: 39.79 (+0.09s | 0.2%) | Hills Hurricane Swimming | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1705 | Levi Whitlock | 39.89 | 10 | B Min | BB: 39.79 (+0.10s | 0.3%) | Nova of Virginia | 04/17/2026 | NOVA Long Course Kick Off | |
| 1706 | Thomas Doyle | 39.89 | 8 | B Min | BB: 39.79 (+0.10s | 0.3%) | Csp Tideriders | 05/29/2026 | 2026 Meet Me In St Louis Invite | |
| 1707 | Ronan Kruse | 39.89 | 10 | B Min | BB: 39.79 (+0.10s | 0.3%) | South Bay Aquatics | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 1708 | Max Shen | 39.90 | 10 | B Min | BB: 39.79 (+0.11s | 0.3%) | Charles River Aquatics | 05/08/2026 | 2026 NE CRA MIT Team Specialty LC Meet | |
| 1709 | Jackson Porter | 39.90 | 10 | B Min | BB: 39.79 (+0.11s | 0.3%) | Stingray Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 1710 | Cooper Koehn | 39.91 | 10 | B Min | BB: 39.79 (+0.12s | 0.3%) | Starkville Swim Team | 06/26/2026 | 2026 Dick Fadgen Tiger Classic | |
| 1711 | Leo Labay | 39.92 | 10 | B Min | BB: 39.79 (+0.13s | 0.3%) | YMCA of Austin Swim Alliance | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 1712 | Samuel Zvenigorodskiy | 39.92 | 10 | B Min | BB: 39.79 (+0.13s | 0.3%) | Jcc Sea Serpents | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 1713 | Jaroslav Rezac | 39.93 | 9 | B Min | BB: 39.79 (+0.14s | 0.4%) | Longmont Swim Club | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 1714 | Brooks Dechaine | 39.93 | 10 | B Min | BB: 39.79 (+0.14s | 0.4%) | Swim Florida | 05/22/2026 | 2026 T2 Aquatics Norris Foundation LC Meet | |
| 1715 | Trent Statzer | 39.94 | 10 | B Min | BB: 39.79 (+0.15s | 0.4%) | Sea Dragon Aquatics | 05/03/2025 | 2025 Sea Dragon May Open | |
| 1716 | Artemii Ilchenko | 39.94 | 9 | B Min | BB: 39.79 (+0.15s | 0.4%) | San Antonio Wave | 05/15/2026 | 2026 ST NIST Salute To The Troops | |
| 1717 | Caleb Deering | 39.95 | 7 | B Min | BB: 39.79 (+0.16s | 0.4%) | New Wave Swim Team | 05/15/2026 | 2026 TAC TITANS Spring Fling Meet | |
| 1718 | Anthony Ma | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Cottonwood Heights Aquatics | 05/08/2025 | 2025 HAST Janet Oles LC Classic | |
| 1719 | Miles Key | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Raleigh Swimming Association | 06/26/2026 | 2026 MOR Long Course Qualifier | |
| 1720 | Samuel Zhou | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | Bay Club Panthers | 05/02/2026 | Alto Spring Jam CBA | |
| 1721 | Zachariah Cornine | 39.95 | 10 | B Min | BB: 39.79 (+0.16s | 0.4%) | South Lake Aquatic Club | 05/22/2026 | 2026 Dr Aspi Doctor Memorial Swim Invite | |
| 1722 | Rhett Stephens | 39.96 | 9 | B Min | BB: 39.79 (+0.17s | 0.4%) | North Carolina Aquatic Club | 06/25/2026 | ONSA Independence Invitational Copied | |
| 1723 | Ziyan Rong | 39.96 | 10 | B Min | BB: 39.79 (+0.17s | 0.4%) | Kingfish Swimming Medfield | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 1724 | Ahaan Iragavarapu | 39.96 | 10 | B Min | BB: 39.79 (+0.17s | 0.4%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 1725 | Nolan Bocan | 39.97 | 8 | B Min | BB: 39.79 (+0.18s | 0.5%) | YMCA of Northwest North Caroli | 06/25/2026 | ONSA Independence Invitational Copied | |
| 1726 | Grayson Wagner | 39.97 | 10 | B Min | BB: 39.79 (+0.18s | 0.5%) | Arkansas Racers | 06/19/2026 | 2026 ST ASC Firecracker | |
| 1727 | Colin Morrison | 39.97 | 10 | B Min | BB: 39.79 (+0.18s | 0.5%) | Parkway-Rockwood Gateway Swim | 06/26/2026 | 88th CSP Summer Invitational | |
| 1728 | Mars Meihack | 39.97 | 9 | B Min | BB: 39.79 (+0.18s | 0.5%) | Tualatin Hills Swim Club | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 1729 | Isaiah Burdett | 39.97 | 9 | B Min | BB: 39.79 (+0.18s | 0.5%) | Waves Of Wilmington Inc | 04/25/2026 | 2026 WAVE Sprint Into LC | |
| 1730 | Michael Tromp | 39.98 | 8 | B Min | BB: 39.79 (+0.19s | 0.5%) | Lakeside Swim Team | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 1731 | Ethan Holmgren | 39.98 | 10 | B Min | BB: 39.79 (+0.19s | 0.5%) | North Jeffco Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 1732 | Brooks Noblett | 39.98 | 10 | B Min | BB: 39.79 (+0.19s | 0.5%) | Westlake Aquatic Facility | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 1733 | Jack Cohen | 39.98 | 10 | B Min | BB: 39.79 (+0.19s | 0.5%) | Class Aquatics | 06/11/2026 | 2026 SCS June AG Invite CANY | |
| 1734 | Jamie Russell | 39.98 | 9 | B Min | BB: 39.79 (+0.19s | 0.5%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 1735 | Knox Miklowcic | 39.98 | 9 | B Min | BB: 39.79 (+0.19s | 0.5%) | Jcc Sea Serpents | 05/15/2026 | 2026 NE YNS May Specialty Meet | |
| 1736 | Dean Chou | 39.99 | 9 | B Min | BB: 39.79 (+0.20s | 0.5%) | Capital Area Aquatics | 06/06/2026 | 2026 HPAC Sunshine Splash | |
| 1737 | Owen Wallin | 39.99 | 8 | B Min | BB: 39.79 (+0.20s | 0.5%) | Swim Tampa Aquatics | 06/05/2026 | 2026 TAMPA BAY SWIM CLASSIC | |
| 1738 | Quinn Sengpiel | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | La Crosse Area Family YMCA Swi | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 1739 | Ethan Yang | 39.99 | 8 | B Min | BB: 39.79 (+0.20s | 0.5%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1740 | Nathan Selinger | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | Minnetonka Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 1741 | Chance Baker | 39.99 | 10 | B Min | BB: 39.79 (+0.20s | 0.5%) | Xcell Aquatics | 04/17/2026 | 2026 STAR April Friday Night At The Races | |
| 1742 | Jacob Meade | 40.00 | 10 | B Min | BB: 39.79 (+0.21s | 0.5%) | Great Lakes Tritons | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 1743 | Marcus Wang | 40.00 | 10 | B Min | BB: 39.79 (+0.21s | 0.5%) | Pacific Dragons Swim Team | 06/13/2026 | 2026 PN IST June Invtational Approved | |
| 1744 | Kou Takahashi | 40.01 | 7 | B Min | BB: 39.79 (+0.22s | 0.5%) | West Express Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 1745 | Gideon Brooks | 40.01 | 10 | B Min | BB: 39.79 (+0.22s | 0.5%) | Decatur Area Swim Team | 06/26/2026 | 2026 HSA June Invitational | |
| 1746 | Arlo Nagy | 40.01 | 9 | B Min | BB: 39.79 (+0.22s | 0.5%) | Minnetonka Swim Club | 06/11/2026 | 2026 MN AQJT Aquajets Summer Spectacular | |
| 1747 | John Stetson | 40.01 | 10 | B Min | BB: 39.79 (+0.22s | 0.5%) | Bolles School Sharks | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 1748 | Taeyul Heo | 40.02 | 10 | B Min | BB: 39.79 (+0.23s | 0.6%) | Pleasanton Seahawks | 06/13/2026 | PC CDST LC C B BB+ 26 074 | |
| 1749 | Bennett Burtz | 40.02 | 9 | B Min | BB: 39.79 (+0.23s | 0.6%) | Colorado Stingrays Swim Team | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 1750 | Marco Hines | 40.02 | 10 | B Min | BB: 39.79 (+0.23s | 0.6%) | Southwest Aquatic Team | 06/12/2026 | 2026 BD DSSC Poppas Day | |
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.