USA Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2101 | Axton McDermott | 48.01 | 10 | B Min | BB: 47.69 (+0.32s | 0.7%) | Nation\\\\\\'s Capital Swim Club | 10/18/2025 | 2025 NCAP Autumn Kingfish Splash | |
| 2102 | Odin Yu | 48.01 | 7 | B Min | BB: 47.69 (+0.32s | 0.7%) | Xtreme Swim Club | 02/13/2026 | 2026 NE SAC TT 10 Under Champs | |
| 2103 | Easton Coppes | 48.01 | 10 | B Min | BB: 47.69 (+0.32s | 0.7%) | Bowling Green Swim Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
| 2104 | Edison de Silva | 48.02 | 10 | B Min | BB: 47.69 (+0.33s | 0.7%) | Swim Tampa Aquatics | 02/06/2026 | CVST Sweetheart Meet | |
| 2105 | Devan Gupta | 48.02 | 10 | B Min | BB: 47.69 (+0.33s | 0.7%) | Mason Manta Rays | 02/19/2026 | 2026 OH RAYS SC Regional Championships | |
| 2106 | William Nolte | 48.02 | 10 | B Min | BB: 47.69 (+0.33s | 0.7%) | Black Hawk Area Swim Team | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 2107 | Ryan Li | 48.03 | 10 | B Min | BB: 47.69 (+0.34s | 0.7%) | Quicksilver Swimming | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 2108 | Jusung Park | 48.03 | 9 | B Min | BB: 47.69 (+0.34s | 0.7%) | Life Time Fitness New York Swi | 03/27/2026 | 2026 MR Bronze Championships Central KBM | |
| 2109 | Will Huang | 48.04 | 5 | B Min | BB: 47.69 (+0.35s | 0.7%) | Soda Fall | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 2110 | Lucas Portillo-Martinez | 48.04 | 10 | B Min | BB: 47.69 (+0.35s | 0.7%) | Patuxent Aquatics Club | 10/25/2025 | 2025 PAC 10 Under RockHopper Penguin Meet | |
| 2111 | Aadit Ranade | 48.04 | 9 | B Min | BB: 47.69 (+0.35s | 0.7%) | Nitro Swimming | 09/06/2025 | 2025 ST NTRO Stephen J Wolleben Memorial Meet | |
| 2112 | David Hardekopf | 48.05 | 10 | B Min | BB: 47.69 (+0.36s | 0.7%) | Streamline & Sprint Human Perf | 09/20/2025 | 2025 SE BSL Sprint Into Fall Invitational | |
| 2113 | Hudson Dunaway | 48.05 | 9 | B Min | BB: 47.69 (+0.36s | 0.7%) | Huntsville Swim Association | 09/20/2025 | 2025 Ricky Hui Intrasquad Meet | |
| 2114 | John Penfold | 48.05 | 9 | B Min | BB: 47.69 (+0.36s | 0.7%) | Brooklyn Stingrays | 03/27/2026 | 2026 MR Bronze Championships Central KBM | |
| 2115 | William Li | 48.05 | 9 | B Min | BB: 47.69 (+0.36s | 0.7%) | Long Island Aquatic Club | 10/25/2025 | 2025 MR LIAC Chappy S Invitational | |
| 2116 | William Hall | 48.06 | 9 | B Min | BB: 47.69 (+0.37s | 0.8%) | Tennessee Aquatics | 03/06/2026 | Speedo Southern Premier | |
| 2117 | Isaac Engelbart | 48.06 | 10 | B Min | BB: 47.69 (+0.37s | 0.8%) | Stingray Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 2118 | William Davidson | 48.06 | 10 | B Min | BB: 47.69 (+0.37s | 0.8%) | Denver Swim Academy | 03/06/2026 | 2026 CO 14 U Silver State | |
| 2119 | Bennett Fraser | 48.07 | 8 | B Min | BB: 47.69 (+0.38s | 0.8%) | Aquawolves Swimming | 03/06/2026 | 2026 CO 14 U Silver State | |
| 2120 | Isaac Song | 48.07 | 9 | B Min | BB: 47.69 (+0.38s | 0.8%) | Coronado Swim -team Elite | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 2121 | Rylan Brill | 48.07 | 10 | B Min | BB: 47.69 (+0.38s | 0.8%) | CAC Stingrays Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 2122 | Shiv Vohra | 48.07 | 8 | B Min | BB: 47.69 (+0.38s | 0.8%) | Shawmut Aquatic Club | 01/30/2026 | 2026 NE CS Silver Championships | |
| 2123 | Edward Simon | 48.08 | 10 | B Min | BB: 47.69 (+0.39s | 0.8%) | Magic City Aquatic League | 02/06/2026 | 2026 SES Region 3 Champions | |
| 2124 | Owen Shearman | 48.08 | 9 | B Min | BB: 47.69 (+0.39s | 0.8%) | Madison Area YMCA Mariners | 01/09/2026 | MR 2026 12 UNDER TEAM WINTER CARNIVAL | |
| 2125 | David Milman | 48.09 | 10 | B Min | BB: 47.69 (+0.40s | 0.8%) | Clearwater Aquatic Team | 11/07/2025 | 2025 SYS Turkey Meet | |
| 2126 | Graham Rosenthal | 48.09 | 9 | B Min | BB: 47.69 (+0.40s | 0.8%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 02/27/2026 | 2026 Junior Cup | |
| 2127 | Marcus Kalmi | 48.09 | 10 | B Min | BB: 47.69 (+0.40s | 0.8%) | Riptide Swim Team | 01/09/2026 | 2026 MN FOXJ Winter Classic | |
| 2128 | Benjamin van Leenen | 48.10 | 10 | B Min | BB: 47.69 (+0.41s | 0.9%) | Brooklyn Stingrays | 10/11/2025 | 2025 MR AGUA Season Starter Invitational | |
| 2129 | Marvin Yang | 48.10 | 9 | B Min | BB: 47.69 (+0.41s | 0.9%) | Annapolis Swim Club | 03/13/2026 | 2026 Speedo Maryland Junior Championship Si | |
| 2130 | Max Lim | 48.10 | 10 | B Min | BB: 47.69 (+0.41s | 0.9%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 2131 | Jacob Gamio | 48.10 | 9 | B Min | BB: 47.69 (+0.41s | 0.9%) | Unattached | 01/10/2026 | 2026 ST AHAC B Champs South Copied | |
| 2132 | Elliott Zimmer | 48.11 | 10 | B Min | BB: 47.69 (+0.42s | 0.9%) | Greensboro Community YMCA | 03/19/2026 | 2026 USRY Short Course Champs | |
| 2133 | Alexander Van Volkenburg | 48.11 | 10 | B Min | BB: 47.69 (+0.42s | 0.9%) | Dads Club Swim Team | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 2134 | Tucker Jensen | 48.11 | 10 | B Min | BB: 47.69 (+0.42s | 0.9%) | Potomac Marlins | 02/07/2026 | 2026 PM 14 U Champs Qualifier | |
| 2135 | Nicholas Burmeister | 48.11 | 9 | B Min | BB: 47.69 (+0.42s | 0.9%) | Cascade Swim Club | 04/18/2026 | 2026 PN MMSC Marlins Madness Approved | |
| 2136 | Albert Shifrin | 48.11 | 10 | B Min | BB: 47.69 (+0.42s | 0.9%) | Mjcc Stingrays | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 2137 | Grayson Huynh | 48.11 | 9 | B Min | BB: 47.69 (+0.42s | 0.9%) | Kingfish Swimming Medfield | 05/01/2026 | 2026 NE KING RI May Fair | |
| 2138 | Liam Feliciano-Sanik | 48.12 | 7 | B Min | BB: 47.69 (+0.43s | 0.9%) | Saint Petersburg Aquatics | 12/12/2025 | 2025 HARRY MEISEL WEST | |
| 2139 | Edward Uvejzovic | 48.12 | 10 | B Min | BB: 47.69 (+0.43s | 0.9%) | Olympus Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 2140 | Michael Ward | 48.12 | 10 | B Min | BB: 47.69 (+0.43s | 0.9%) | South Central Swimming | 03/07/2026 | 2026 Lake Superior Regional Meet | |
| 2141 | Julius Weinstein | 48.12 | 10 | B Min | BB: 47.69 (+0.43s | 0.9%) | Rancho Family YMCA | 10/11/2025 | 2025 SI RSD All Ages B C Meet | |
| 2142 | Shan Chan | 48.12 | 10 | B Min | BB: 47.69 (+0.43s | 0.9%) | Three Village Swim Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | |
| 2143 | Alexander Pevzner | 48.13 | 10 | B Min | BB: 47.69 (+0.44s | 0.9%) | Ridgewood YMCA Breakers Swim T | 10/10/2025 | 2025 MR COND October Fall Festival | |
| 2144 | Barrett Steyert | 48.13 | 10 | B Min | BB: 47.69 (+0.44s | 0.9%) | YMCA East Hampton Hurricanes | 01/30/2026 | 2026 MR SSC Polar Bear Plunge | |
| 2145 | James Strate | 48.13 | 10 | B Min | BB: 47.69 (+0.44s | 0.9%) | Tac Titans | 02/14/2026 | 2026 TAC TITANS February Qualifier Meet | |
| 2146 | Jack Bentley-Henry | 48.14 | 10 | B Min | BB: 47.69 (+0.45s | 0.9%) | Rima United | 02/28/2026 | 2026 NE NSSC Specialty At BC | |
| 2147 | John Kosch | 48.14 | 10 | B Min | BB: 47.69 (+0.45s | 0.9%) | Oly Swimming | 02/27/2026 | 2026 MCSA Junior Cup | |
| 2148 | Oliver Penfield | 48.14 | 9 | B Min | BB: 47.69 (+0.45s | 0.9%) | Hydra Aquatics | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 2149 | Evan Fernando | 48.15 | 10 | B Min | BB: 47.69 (+0.46s | 1.0%) | Atlantis Swimming | 10/17/2025 | 2025 OLY Fall Classic | |
| 2150 | Andrew Miller | 48.15 | 10 | B Min | BB: 47.69 (+0.46s | 1.0%) | Grosse Pointe Gators | 12/06/2025 | 2025 26 Super Fast And Furious Prelim Final | |
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.