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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Mason Nguyen | 33.88 | 10 | AAA Min | AAAA: 32.19 (+1.69s | 5.0%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 252 | Finn McGuire | 33.88 | 10 | AAA Min | AAAA: 32.19 (+1.69s | 5.0%) | Swim Florida | 01/16/2026 | 2026 T2 Aquatics Naples Open | |
| 253 | Brantley Harris | 33.88 | 10 | AAA Min | AAAA: 32.19 (+1.69s | 5.0%) | Tide Swimming | 03/12/2026 | 2026 Virginia Swimming SC Age Group Champions | |
| 254 | Chandler Lourie | 33.89 | 10 | AAA Min | AAAA: 32.19 (+1.70s | 5.0%) | Life Time Southeast | 02/06/2026 | 2026 SES Region 3 Champions | |
| 255 | Arthur Shackelton | 33.93 | 9 | AAA Min | AAAA: 32.19 (+1.74s | 5.1%) | Zone 4 Challenge Team | 04/26/2026 | 2026 Pacific Swimming Zone All Star Meet | |
| 256 | Leopold Stevens | 33.94 | 10 | AAA Min | AAAA: 32.19 (+1.75s | 5.2%) | YMCA of the Triangle Area Swim | 03/19/2026 | 2026 USRY Short Course Champs | |
| 257 | Wyatt Larson | 33.94 | 10 | AAA Min | AAAA: 32.19 (+1.75s | 5.2%) | Denver Swim Academy | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 258 | Jacob Hood | 33.95 | 10 | AAA Min | AAAA: 32.19 (+1.76s | 5.2%) | Sailfish | 02/20/2026 | 2026 ST AAAA SC STAGS | |
| 259 | Jeffrey Ok | 33.97 | 10 | AAA Min | AAAA: 32.19 (+1.78s | 5.2%) | Long Island Aquatic Club | 12/11/2025 | 2025 Katie Ledecky Invitational | |
| 260 | Carlos Montenegro | 33.99 | 9 | AAA Min | AAAA: 32.19 (+1.80s | 5.3%) | Kentridge | 01/10/2026 | 2026 Kentridge High School Invitational Obse | |
| 261 | Benjamin Balmaceda | 33.99 | 10 | AAA Min | AAAA: 32.19 (+1.80s | 5.3%) | Alamo Heights Aquatic Club ? A | 02/20/2026 | 2026 ST AAAA SC STAGS | |
| 262 | Gleb Nikishin | 34.00 | 10 | AA Min | AAA: 33.99 (+0.01s | 0.0%) | SwimRight Team | 03/05/2026 | 2026 FG Age Group SCY Championships | |
| 263 | Dalton Gonzalez | 34.00 | 9 | AA Min | AAA: 33.99 (+0.01s | 0.0%) | Nitro Swimming | 02/20/2026 | 2026 ST AAAA SC STAGS | |
| 264 | Keegan Donnelly | 34.02 | 10 | AA Min | AAA: 33.99 (+0.03s | 0.1%) | Mason Makos Swim Team | 03/12/2026 | 2026 PV SC 14 Under Championships Copied | |
| 265 | Noah Newport | 34.03 | 10 | AA Min | AAA: 33.99 (+0.04s | 0.1%) | Oregon City | 02/15/2025 | 2025 OR HS 6A 5 | |
| 266 | Aiden Cowles | 34.03 | 10 | AA Min | AAA: 33.99 (+0.04s | 0.1%) | SwimMAC Carolina | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 267 | Ziqian Liu | 34.04 | 10 | AA Min | AAA: 33.99 (+0.05s | 0.1%) | Tac Titans | 03/24/2026 | 2026 TAC TITANS March Intrasquad Meet | |
| 268 | Ethan Hartley | 34.05 | 10 | AA Min | AAA: 33.99 (+0.06s | 0.2%) | Quest Swimming | 03/12/2026 | 2026 Virginia Swimming SC Age Group Champions | |
| 269 | Gabriel Brown | 34.05 | 10 | AA Min | AAA: 33.99 (+0.06s | 0.2%) | Unattached | 06/14/2024 | 2024 CZ Multi Cultural Meet | |
| 270 | Holten Lawrence | 34.06 | 9 | AA Min | AAA: 33.99 (+0.07s | 0.2%) | The Dalles Swim Team | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 271 | Isaac Dai | 34.06 | 9 | AA Min | AAA: 33.99 (+0.07s | 0.2%) | Mission Viejo Nadadores | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 272 | Carson Swift | 34.06 | 10 | AA Min | AAA: 33.99 (+0.07s | 0.2%) | Nitro Swimming | 01/16/2026 | 2026 ST NTRO Winter Prelim Final Invite | |
| 273 | Konrad Struve | 34.07 | 10 | AA Min | AAA: 33.99 (+0.08s | 0.2%) | Astoria | 02/13/2026 | 2026 OR HS 4a 3 | |
| 274 | Pace Bui | 34.07 | 10 | AA Min | AAA: 33.99 (+0.08s | 0.2%) | Fog City Hammerheads | 03/20/2026 | SCY Spring Age Group Championships | |
| 275 | Samuel Fuller | 34.08 | 10 | AA Min | AAA: 33.99 (+0.09s | 0.3%) | Rose Bowl Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 276 | Blake Wu | 34.09 | 10 | AA Min | AAA: 33.99 (+0.10s | 0.3%) | Bgc-N. Westchester Marlins | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 277 | Griffin Ignash | 34.09 | 10 | AA Min | AAA: 33.99 (+0.10s | 0.3%) | Aquatic Team Of Mecklenburg | 03/06/2026 | Speedo Southern Premier | |
| 278 | Gabriel Nolan | 34.11 | 10 | AA Min | AAA: 33.99 (+0.12s | 0.4%) | Long Island Express | 01/16/2026 | 2026 MR LIE Winterfest Invitational | |
| 279 | Elliott Ganancial | 34.12 | 10 | AA Min | AAA: 33.99 (+0.13s | 0.4%) | Aloha Aquatics Association | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 280 | Jackson Volpe | 34.12 | 10 | AA Min | AAA: 33.99 (+0.13s | 0.4%) | Lake Erie Silver Dolphins | 03/12/2026 | 2026 OH SC Junior Championships | |
| 281 | Kaveen Kasa | 34.18 | 10 | AA Min | AAA: 33.99 (+0.19s | 0.6%) | Greensboro Community YMCA | 03/06/2026 | Jon Jolley GYSSA 2026 | |
| 282 | Aiden Liew | 34.18 | 10 | AA Min | AAA: 33.99 (+0.19s | 0.6%) | Excel Aquatics | 03/19/2026 | 2026 NC TAC ESSZ Age Group Sectionals | |
| 283 | Nicholas Liu | 34.20 | 9 | AA Min | AAA: 33.99 (+0.21s | 0.6%) | Alto Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 284 | Grant Zimmermann | 34.20 | 10 | AA Min | AAA: 33.99 (+0.21s | 0.6%) | YMCA of the Triangle Area Swim | 03/19/2026 | 2026 USRY Short Course Champs | |
| 285 | Lev Petrovskii | 34.21 | 9 | AA Min | AAA: 33.99 (+0.22s | 0.6%) | Swim Fort Lauderdale | 12/05/2025 | 2025 FG Holiday Champ | |
| 286 | Samuel Fuetsch | 34.23 | 9 | AA Min | AAA: 33.99 (+0.24s | 0.7%) | Tac Titans | 03/19/2026 | 2026 NC TAC ESSZ Age Group Sectionals | |
| 287 | Leo Madera | 34.23 | 10 | AA Min | AAA: 33.99 (+0.24s | 0.7%) | Gulliver Swim Club | 12/06/2025 | 2025 Pompano Beach Santa Claus Meet | |
| 288 | Arick Eisler | 34.23 | 9 | AA Min | AAA: 33.99 (+0.24s | 0.7%) | Tac Titans | 02/26/2026 | 2026 NCS SC AG CHAMPS | |
| 289 | Sebastian Horn-Rios | 34.29 | 10 | AA Min | AAA: 33.99 (+0.30s | 0.9%) | T2 Aquatics | 02/07/2026 | 2026 GCST WINTER OPEN | |
| 290 | Joss Werr | 34.32 | 10 | AA Min | AAA: 33.99 (+0.33s | 1.0%) | SwimMAC Carolina | 01/23/2026 | 2026 NC SwimMAC Battle Of The Crown | |
| 291 | Andy Wang | 34.32 | 10 | AA Min | AAA: 33.99 (+0.33s | 1.0%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 292 | Jayden Liu | 34.32 | 10 | AA Min | AAA: 33.99 (+0.33s | 1.0%) | Katy Aquatic Team For Youth | 02/21/2025 | 2025 Gulf 12 Under Champs (KATY) | |
| 293 | Erik Serbinenko | 34.34 | 10 | AA Min | AAA: 33.99 (+0.35s | 1.0%) | Crimson Aquatics | 03/06/2026 | 2026 NE CRIM March Trials Finals Meet | |
| 294 | Eliott Jackson | 34.34 | 10 | AA Min | AAA: 33.99 (+0.35s | 1.0%) | Team Eugene Aquatics | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 295 | Gavin Earhart | 34.35 | 10 | AA Min | AAA: 33.99 (+0.36s | 1.0%) | Mason Manta Rays | 03/12/2026 | 2026 OH SC Junior Championships | |
| 296 | Ethan Canlas | 34.35 | 10 | AA Min | AAA: 33.99 (+0.36s | 1.0%) | Sandpipers of Nevada | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 297 | Jaezyn Magnaye | 34.37 | 10 | AA Min | AAA: 33.99 (+0.38s | 1.1%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 298 | Jason Feng | 34.38 | 10 | AA Min | AAA: 33.99 (+0.39s | 1.1%) | Boys & Girls Club of SF | 12/12/2025 | Winter SC Age Group Championships | |
| 299 | Theodore Teng | 34.38 | 8 | AA Min | AAA: 33.99 (+0.39s | 1.1%) | Stamford Sailfish Aquatic Club | 12/11/2025 | 2025 NE CRA Winter Invitational | |
| 300 | Asher Mormino | 34.38 | 10 | AA Min | AAA: 33.99 (+0.39s | 1.1%) | Bend Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U 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.