USA Boys 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2001 | Xander Dalai | 40.78 | 8 | BB Min | A: 37.59 (+3.19s | 7.8%) | Old Dominion Aquatic Club | 02/07/2026 | 2026 8 And Under Southeastern District Champs | |
| 2002 | Oliver Shalvey | 40.78 | 10 | BB Min | A: 37.59 (+3.19s | 7.8%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 2003 | James Heilbronn | 40.78 | 10 | BB Min | A: 37.59 (+3.19s | 7.8%) | Saline Swim Team | 02/14/2026 | SAC Winter Classic | |
| 2004 | Remy Destics | 40.79 | 10 | BB Min | A: 37.59 (+3.20s | 7.8%) | Omni Otters Swim Club | 11/22/2025 | 2025 MN OMNI Pentathlon Challenge | |
| 2005 | Lucas Smock | 40.79 | 10 | BB Min | A: 37.59 (+3.20s | 7.8%) | Grosse Pointe Gators | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 2006 | Xavier Kallus | 40.79 | 10 | BB Min | A: 37.59 (+3.20s | 7.8%) | Victoria Texas Aquatic Club | 11/07/2025 | 2025 ST SCY Surge Shark Sizzler | |
| 2007 | Theodore Antonio | 40.79 | 10 | BB Min | A: 37.59 (+3.20s | 7.8%) | Bayside Branch YMCA | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 2008 | Christian Thomas | 40.79 | 10 | BB Min | A: 37.59 (+3.20s | 7.8%) | Accokeek Stroke Technique Swim | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 2009 | Lucas Wang | 40.80 | 10 | BB Min | A: 37.59 (+3.21s | 7.9%) | Chinook Aquatic Club | 05/15/2026 | 2026 PN SRST Pacific Coast Invitational App | |
| 2010 | Noah Beimesche | 40.80 | 9 | BB Min | A: 37.59 (+3.21s | 7.9%) | Cincinnati Marlins | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2011 | Aidan Baranec | 40.80 | 9 | BB Min | A: 37.59 (+3.21s | 7.9%) | Connetquot Swim Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
| 2012 | Elliott Zimmer | 40.80 | 10 | BB Min | A: 37.59 (+3.21s | 7.9%) | Greensboro Community YMCA | 03/19/2026 | 2026 USRY Short Course Champs | |
| 2013 | Tyler Mirasol | 40.80 | 9 | BB Min | A: 37.59 (+3.21s | 7.9%) | Quicksilver Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 2014 | Cameron Mendelsohn | 40.81 | 8 | BB Min | A: 37.59 (+3.22s | 7.9%) | Life Time Minnesota Swim Team | 12/20/2025 | 2025 MN AQJT Holiday Invite | |
| 2015 | Sawyer Sedlock | 40.81 | 10 | BB Min | A: 37.59 (+3.22s | 7.9%) | Smac | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 2016 | Gustavo Granados | 40.81 | 9 | BB Min | A: 37.59 (+3.22s | 7.9%) | Fenix Swim Club | 06/06/2026 | NMST June Invite 26 | |
| 2017 | Jakob Lipscomb | 40.81 | 10 | BB Min | A: 37.59 (+3.22s | 7.9%) | Watauga Swim Team | 02/14/2026 | 12th Annual Chris Peterson Invitational | |
| 2018 | Keegan Brown | 40.81 | 10 | BB Min | A: 37.59 (+3.22s | 7.9%) | Kingfish Swimming Medfield | 01/30/2026 | 2026 NE GS Silver Championships | |
| 2019 | Nicolas Matteo | 40.81 | 10 | BB Min | A: 37.59 (+3.22s | 7.9%) | Nation\\\\\\'s Capital Swim Club | 02/13/2026 | 2026 ASA President S Day Classic | |
| 2020 | Noah Wu | 40.82 | 10 | BB Min | A: 37.59 (+3.23s | 7.9%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 2021 | Carter Manning | 40.82 | 10 | BB Min | A: 37.59 (+3.23s | 7.9%) | Richland | 01/11/2025 | 2025 Kentridge HS Invitational BOYS OBSERVED | |
| 2022 | Troy Cary | 40.83 | 10 | BB Min | A: 37.59 (+3.24s | 7.9%) | Alamo Area Aquatic Association | 03/01/2025 | 2025 AAAA SW End Of Season Splash | |
| 2023 | Nicholas Bowers | 40.83 | 10 | BB Min | A: 37.59 (+3.24s | 7.9%) | Rec-Plex Sharks | 02/27/2026 | Ozark Division I Championship | |
| 2024 | Milo Lanigan | 40.83 | 10 | BB Min | A: 37.59 (+3.24s | 7.9%) | Pikes Peak Athletics | 04/11/2026 | 2026 CO PPA Sprint Penthathlon | |
| 2025 | Jonathan Chen | 40.83 | 9 | BB Min | A: 37.59 (+3.24s | 7.9%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 2026 | Dean Chou | 40.83 | 9 | BB Min | A: 37.59 (+3.24s | 7.9%) | Capital Area Aquatics | 09/19/2025 | 2025 ST AQTX Round Rock Unclassified | |
| 2027 | Asher Young | 40.83 | 9 | BB Min | A: 37.59 (+3.24s | 7.9%) | SwimRVA | 12/11/2025 | 2025 East Coast WinterFest | |
| 2028 | Andrew Stoffers | 40.83 | 10 | BB Min | A: 37.59 (+3.24s | 7.9%) | Oregon City | 02/15/2025 | 2025 OR HS 6A 5 | |
| 2029 | James Mauldin | 40.84 | 9 | BB Min | A: 37.59 (+3.25s | 8.0%) | Huntsville Swim Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 2030 | Graham Cassella | 40.84 | 10 | BB Min | A: 37.59 (+3.25s | 8.0%) | Y-Spartaquatics Swim Club | 01/16/2026 | 2026 TNAQ JANUARY INVITATIONAL | |
| 2031 | Micah Parris | 40.84 | 9 | BB Min | A: 37.59 (+3.25s | 8.0%) | Sunnyvale Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 2032 | Ace-Ryder Garza | 40.85 | 9 | BB Min | A: 37.59 (+3.26s | 8.0%) | Dr Dolores Silas | 02/20/2026 | 2026 WIAA 3A Boys HS State Champs OB | |
| 2033 | Ryan McCall | 40.85 | 10 | BB Min | A: 37.59 (+3.26s | 8.0%) | Egra Waves | 12/05/2025 | EGRA 2025 Winter Washout | |
| 2034 | Grant Puro | 40.85 | 10 | BB Min | A: 37.59 (+3.26s | 8.0%) | Oly Swimming | 02/27/2026 | 2026 MCSA Junior Cup | |
| 2035 | Owen Large | 40.85 | 10 | BB Min | A: 37.59 (+3.26s | 8.0%) | FireFish Swim Team | 03/22/2026 | 2026 NE SSC March Madness | |
| 2036 | Caden Shane | 40.86 | 10 | BB Min | A: 37.59 (+3.27s | 8.0%) | Sarasota Tsunami Swim Team | 12/13/2025 | CCS Holiday Classic 2025 | |
| 2037 | Leif Rinehardt | 40.86 | 10 | BB Min | A: 37.59 (+3.27s | 8.0%) | Northern Lights Swimming Assoc | 02/14/2026 | 2026 MN NLSA Marlins Swimming FEBRUARY Invite | |
| 2038 | Owen Vaiana | 40.86 | 9 | BB Min | A: 37.59 (+3.27s | 8.0%) | Michigan Lakeshore Aquatics | 12/05/2025 | EGRA 2025 Winter Washout | |
| 2039 | Levi Whitlock | 40.87 | 10 | BB Min | A: 37.59 (+3.28s | 8.0%) | Nova of Virginia | 12/05/2025 | NOVA December Dip | |
| 2040 | Peyton Hiller | 40.87 | 10 | BB Min | A: 37.59 (+3.28s | 8.0%) | Egra Waves | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 2041 | Evan Xia | 40.87 | 9 | BB Min | A: 37.59 (+3.28s | 8.0%) | Nitro Swimming | 12/12/2025 | 2025 ST AAAA NS Winter Wonderland | |
| 2042 | Oliver Zhang | 40.87 | 10 | BB Min | A: 37.59 (+3.28s | 8.0%) | Three Village Swim Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
| 2043 | Holt Jorgensen | 40.88 | 9 | BB Min | A: 37.59 (+3.29s | 8.0%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 2044 | Brady Heald | 40.88 | 9 | BB Min | A: 37.59 (+3.29s | 8.0%) | Pen Bay Sailfish | 02/27/2026 | 2026 NE Maine State Y Championships | |
| 2045 | John Stetson | 40.88 | 10 | BB Min | A: 37.59 (+3.29s | 8.0%) | Bolles School Sharks | 09/14/2025 | 2025 September Splash | |
| 2046 | John Jackson | 40.88 | 10 | BB Min | A: 37.59 (+3.29s | 8.0%) | Cavalier Aquatics/Piedmont Fam | 01/31/2026 | LY Vs CA Y January Dual | |
| 2047 | Hugh Bullock | 40.88 | 9 | BB Min | A: 37.59 (+3.29s | 8.0%) | Keene YMCA Dolphins | 01/16/2026 | 2026 NE UVAC Bronze Championships | |
| 2048 | Marek Martini | 40.88 | 9 | BB Min | A: 37.59 (+3.29s | 8.0%) | Blue Dragons Swim Team | 03/14/2026 | 2026 CAT Spring Invite | |
| 2049 | Samuel Cronovich | 40.89 | 10 | BB Min | A: 37.59 (+3.30s | 8.1%) | Utica Shelby Swim Club | 01/16/2026 | 2026 Odd Age Classic | |
| 2050 | Tobin Hartinger | 40.89 | 9 | BB Min | A: 37.59 (+3.30s | 8.1%) | Shorewood | 02/13/2026 | 2026 OR HS 6A 3 | |
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.