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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4151 | James Morgan | 51.74 | 9 | B Min | BB: 47.69 (+4.05s | 7.8%) | Nation\\\\\\'s Capital Swim Club | 03/20/2026 | March Madness 2026 | |
| 4152 | Nash Buchanan | 51.74 | 10 | B Min | BB: 47.69 (+4.05s | 7.8%) | Salida Cyclones | 07/25/2025 | 2025 CO SECAL Championships | |
| 4153 | Ari Singer-Leavitt | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Kent County YMCA | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 4154 | Ruslan Kovalchuk | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Jbarracudas Swim Team | 12/05/2025 | 2025 SI JBST Wag Max Meet | |
| 4155 | Martin Mao | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Sienna Premier Aquatics | 10/05/2024 | SPA Fall Annual Fall Invite 2024 | |
| 4156 | Hugo Pace | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Pacifica Sea Lions | 03/28/2026 | PSL March CBA+ | |
| 4157 | Brandon Lin | 51.75 | 8 | B Min | BB: 47.69 (+4.06s | 7.8%) | Long Island Aquatic Club | 11/01/2025 | 2025 MR TRI Fall SCY Invitational | |
| 4158 | Landon Quelland | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Nova of Virginia | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 4159 | Michael Oneil | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Highlands Ranch Aquatics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 4160 | Wes Tang | 51.75 | 10 | B Min | BB: 47.69 (+4.06s | 7.8%) | Harbor Seals | 12/13/2025 | 2025 MR TRI Winter SCY Invitational | |
| 4161 | Rooney Morgan | 51.76 | 10 | B Min | BB: 47.69 (+4.07s | 7.9%) | Ensworth Aquatics | 12/05/2025 | 2025 Holiday Classic | |
| 4162 | Elias Tenney | 51.76 | 8 | B Min | BB: 47.69 (+4.07s | 7.9%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 4163 | Holt Jorgensen | 51.76 | 9 | B Min | BB: 47.69 (+4.07s | 7.9%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 4164 | Markus Kuunal | 51.76 | 9 | B Min | BB: 47.69 (+4.07s | 7.9%) | Washingtonians Swim Club | 10/25/2025 | Trick Or Treat Mini Meet | |
| 4165 | Adam Mitzel | 51.76 | 8 | B Min | BB: 47.69 (+4.07s | 7.9%) | Redmond Aquatic Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 4166 | Preston Bao | 51.76 | 10 | B Min | BB: 47.69 (+4.07s | 7.9%) | Rancho San Dieguito | 10/11/2025 | 2025 SI RSD All Ages B C Meet | |
| 4167 | Charles Pang | 51.77 | 9 | B Min | BB: 47.69 (+4.08s | 7.9%) | Aggie Swim Club | 01/10/2025 | MAC 2025 Neon New Year Meet | |
| 4168 | Elijah Crush | 51.77 | 8 | B Min | BB: 47.69 (+4.08s | 7.9%) | YMCA of Virginia\\\\\\'s Blue Ridge | 02/07/2026 | SW District 8 Under Championship | |
| 4169 | Zihan Zhao | 51.77 | 9 | B Min | BB: 47.69 (+4.08s | 7.9%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 4170 | Linus Teufel | 51.77 | 10 | B Min | BB: 47.69 (+4.08s | 7.9%) | Florida West Coast Aquatics | 10/17/2025 | FRIDAY NITE RACES OCT 2025 | |
| 4171 | Kingston Walls | 51.78 | 9 | B Min | BB: 47.69 (+4.09s | 7.9%) | Terrapins Swim Team | 11/15/2024 | Pacific Swimming SCY B BB+ Last Chance Meet | |
| 4172 | William Lawrence | 51.78 | 8 | B Min | BB: 47.69 (+4.09s | 7.9%) | Pro Swimming | 01/23/2026 | 2026 PN Pro January Intrasquad Approved | |
| 4173 | Nolan Williams | 51.78 | 9 | B Min | BB: 47.69 (+4.09s | 7.9%) | Loyola Blakefield Aquatics | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 4174 | August Pittman | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | Issaquah Swim Team | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 4175 | John Robertson | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | McCallie-GPS Aquatics | 02/13/2026 | 2026 SE BAY Region 2 Championships Copied | |
| 4176 | Edan Gerstein | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | Nation\\\\\\'s Capital Swim Club | 01/17/2026 | PVS January Open 2026 Fairland | |
| 4177 | Lucas Fleck | 51.79 | 10 | B Min | BB: 47.69 (+4.10s | 7.9%) | AC Swim Club | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 4178 | Vaughn Jamison | 51.79 | 9 | B Min | BB: 47.69 (+4.10s | 7.9%) | Aspire Aquatics of Colorado | 03/06/2026 | 2026 CO 14 U Silver State | |
| 4179 | Wyatt Brown | 51.80 | 10 | B Min | BB: 47.69 (+4.11s | 7.9%) | Highbridge Aquatics | 12/05/2025 | 2025 Holiday Classic | |
| 4180 | Connor Hilton | 51.80 | 9 | B Min | BB: 47.69 (+4.11s | 7.9%) | SwimRVA | 01/24/2026 | 2026 WAC Mike Willard Polar Plunge | |
| 4181 | Gil Ben Yona | 51.80 | 8 | B Min | BB: 47.69 (+4.11s | 7.9%) | Long Island Aquatic Club | 01/10/2026 | 2026 MR FA Iron Dragon Invitational | |
| 4182 | William Cullip | 51.80 | 10 | B Min | BB: 47.69 (+4.11s | 7.9%) | High Tides Swim Club | 02/27/2026 | 2026 MN MTKA Minnesota Regional Championship | |
| 4183 | Gunner Gessner | 51.80 | 9 | B Min | BB: 47.69 (+4.11s | 7.9%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 10/26/2025 | Lisa Ferris Fall Festival Time Trial 2025 | |
| 4184 | Calvin Oliphant | 51.81 | 10 | B Min | BB: 47.69 (+4.12s | 8.0%) | Arlington Aquatic Club | 02/13/2026 | 2026 AAC Winter Gator Meet | |
| 4185 | Oliver Lin | 51.82 | 9 | B Min | BB: 47.69 (+4.13s | 8.0%) | South Shore YMCA Strypers | 01/30/2026 | 2026 NE CS Silver Championships | |
| 4186 | Oliver Adair | 51.82 | 9 | B Min | BB: 47.69 (+4.13s | 8.0%) | All Star Aquatics | 10/11/2025 | 2025 ASA October Kick Off | |
| 4187 | Charles Toole | 51.82 | 10 | B Min | BB: 47.69 (+4.13s | 8.0%) | Eagle Swimming Association | 01/17/2025 | 2025 TWST Speedo Winter Classic Invitational | |
| 4188 | Colten Stevens | 51.82 | 10 | B Min | BB: 47.69 (+4.13s | 8.0%) | H2okie Aquatics | 10/11/2025 | 2025 WAC Start Up Classic | |
| 4189 | Jacob Frease | 51.82 | 10 | B Min | BB: 47.69 (+4.13s | 8.0%) | Area Tallahassee Aquatic Club | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 4190 | Elias Wilden | 51.83 | 10 | B Min | BB: 47.69 (+4.14s | 8.0%) | Nitro Swimming | 09/19/2025 | 2025 ST AQTX Round Rock Unclassified | |
| 4191 | Luca Moyes | 51.83 | 8 | B Min | BB: 47.69 (+4.14s | 8.0%) | Lake Oswego Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 4192 | Colin Joyce | 51.83 | 9 | B Min | BB: 47.69 (+4.14s | 8.0%) | Nova of Virginia | 01/09/2026 | NOVA New Year S Kick Off | |
| 4193 | Cameron Lane | 51.83 | 10 | B Min | BB: 47.69 (+4.14s | 8.0%) | Tide Swimming | 02/13/2026 | 2026 Southeast District 9 12 Championship | |
| 4194 | Jordan Kolb | 51.84 | 8 | B Min | BB: 47.69 (+4.15s | 8.0%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 4195 | Henrik Neuman | 51.84 | 8 | B Min | BB: 47.69 (+4.15s | 8.0%) | Swim Gators Str | 02/06/2026 | 2026 Michigan Open | |
| 4196 | Hunter Parker | 51.84 | 10 | B Min | BB: 47.69 (+4.15s | 8.0%) | Rockville Montgomery Swim Club | 10/17/2025 | 2025 RMSC October Kick Off Classic | |
| 4197 | Oliver Doty | 51.84 | 10 | B Min | BB: 47.69 (+4.15s | 8.0%) | Tampa Bay Aquatics | 11/21/2025 | SPA PYP NOVEMBER 2025 | |
| 4198 | Carter Cabezas | 51.84 | 8 | B Min | BB: 47.69 (+4.15s | 8.0%) | Longhorn Aquatics | 11/16/2025 | 2025 ST TXLA 10 U November Unclassified | |
| 4199 | Alexander Stepania | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Bellevue Club Swim Team | 11/07/2025 | 2025 THSC November Open | |
| 4200 | Cooper Ly | 51.85 | 9 | B Min | BB: 47.69 (+4.16s | 8.0%) | Excel Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
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.