Western Zone Zone Boys 10 & under - 50 Y Free
These rankings show the swimmers' placement within their Zone.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 | Rex Brinkerhoff | 30.65 | 5 | A Min | AA: 29.89 (+0.76s | 2.5%) | East Bay Bat Rays | 09/27/2025 | PC LAC C B BB | |
| 252 | Shenukha Alahakoon | 30.65 | 10 | A Min | AA: 29.89 (+0.76s | 2.5%) | Tualatin Hills Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 253 | Gareth Oldham | 30.65 | 10 | A Min | AA: 29.89 (+0.76s | 2.5%) | Castle Rock Swimming | 01/23/2026 | 2026 CO FAST Winter Open | |
| 254 | Cole Proescher | 30.67 | 10 | A Min | AA: 29.89 (+0.78s | 2.5%) | Orinda Aquatics | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 255 | Kai Kitamori | 30.70 | 10 | A Min | AA: 29.89 (+0.81s | 2.6%) | East Bay Bat Rays | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 256 | Sean Lee | 30.81 | 10 | A Min | AA: 29.89 (+0.92s | 3.0%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 257 | Eliott Jackson | 30.83 | 10 | A Min | AA: 29.89 (+0.94s | 3.0%) | Team Eugene Aquatics | 12/12/2025 | 2025 TEAM Winter Invitational | |
| 258 | Charlie Wheeler | 30.87 | 10 | A Min | AA: 29.89 (+0.98s | 3.2%) | Longmont Swim Club | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 259 | Samuel Siegrist | 30.89 | 10 | A Min | AA: 29.89 (+1.00s | 3.2%) | North Medford | 02/13/2026 | 2026 OR HS 6A 7 | |
| 260 | Jacob Song | 30.90 | 11 | A Min | AA: 29.89 (+1.01s | 3.3%) | Palo Alto Stanford Aquatics | 07/20/2025 | 2025 PASA Summer Palooza | |
| 261 | Jason Yin | 30.92 | 9 | A Min | AA: 29.89 (+1.03s | 3.3%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 262 | Collin James | 30.92 | 10 | A Min | AA: 29.89 (+1.03s | 3.3%) | West Linn | 02/15/2025 | 2025 OR HS 6A 5 | |
| 263 | Liam Kwok | 30.94 | 10 | A Min | AA: 29.89 (+1.05s | 3.4%) | Socal Aquatics Association | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 264 | Muyang He | 30.95 | 9 | A Min | AA: 29.89 (+1.06s | 3.4%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 265 | Atticus Moreno | 30.97 | 10 | A Min | AA: 29.89 (+1.08s | 3.5%) | CAPITAL HIGH SCHOOL | 01/10/2026 | 2026 Kentridge High School Invitational Obse | |
| 266 | Adam Ma | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | California Dolphins Swim Team | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 267 | Reid Kelly | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Front Range Barracudas | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 268 | Ian Kang | 30.98 | 10 | A Min | AA: 29.89 (+1.09s | 3.5%) | Punahou Aquatics Institute | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 269 | Jackson Lee | 30.99 | 10 | A Min | AA: 29.89 (+1.10s | 3.5%) | Burlingame Aquatics | 03/28/2026 | PSL March CBA+ | |
| 270 | Henry Bresson | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | Chinook Aquatic Club | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 271 | Owen Nguyen | 31.01 | 9 | A Min | AA: 29.89 (+1.12s | 3.6%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 272 | Bryce Gardin | 31.01 | 10 | A Min | AA: 29.89 (+1.12s | 3.6%) | California Capital Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 273 | Allen Chen | 31.03 | 10 | A Min | AA: 29.89 (+1.14s | 3.7%) | Seattle Metropolitan Aquatic C | 02/13/2026 | 2026 PN UPAC 4th Annual Feb Fly In Approved | |
| 274 | Tatsumasa Sekine | 31.03 | 9 | A Min | AA: 29.89 (+1.14s | 3.7%) | Santa Clara Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 275 | Wesley Ho | 31.04 | 10 | A Min | AA: 29.89 (+1.15s | 3.7%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 276 | Arthur Shackelton | 31.04 | 9 | A Min | AA: 29.89 (+1.15s | 3.7%) | Zone 4 Challenge Team | 04/26/2026 | 2026 Pacific Swimming Zone All Star Meet | |
| 277 | Ozzy Su | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 278 | Carson Yin | 31.06 | 10 | A Min | AA: 29.89 (+1.17s | 3.8%) | Tualatin Hills Swim Club | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 279 | Clark Blanch | 31.10 | 10 | BB Min | A: 31.09 (+0.01s | 0.0%) | La Mirada Armada | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 280 | Marcus Nguyen | 31.10 | 10 | BB Min | A: 31.09 (+0.01s | 0.0%) | Adrienne C Nelson | 02/15/2025 | 2025 OR HS 6a 4 | |
| 281 | Vincent Welter | 31.10 | 10 | BB Min | A: 31.09 (+0.01s | 0.0%) | Corvallis | 01/18/2025 | Rumbaugh 2025 | |
| 282 | Adrien Reyes | 31.13 | 10 | BB Min | A: 31.09 (+0.04s | 0.1%) | Clackamas | 02/13/2026 | 2026 OR HS 6A 4 | |
| 283 | Yupeng Wang | 31.13 | 10 | BB Min | A: 31.09 (+0.04s | 0.1%) | Monterey Park Manta Rays | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 284 | Paxton Marvray | 31.14 | 10 | BB Min | A: 31.09 (+0.05s | 0.2%) | Sawtooth Aquatic Club | 12/04/2025 | 2025 Holiday Swim Festival | |
| 285 | Luca Aguilera | 31.14 | 10 | BB Min | A: 31.09 (+0.05s | 0.2%) | Roadrunner Aquatics | 12/04/2025 | 2025 Holiday Swim Festival | |
| 286 | Christian Hernandez | 31.14 | 10 | BB Min | A: 31.09 (+0.05s | 0.2%) | Walnut Creek Aquabears | 03/20/2026 | SCY Spring Age Group Championships | |
| 287 | Leo Liao | 31.19 | 10 | BB Min | A: 31.09 (+0.10s | 0.3%) | Alto Swim Club | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 288 | Brian Chou | 31.20 | 9 | BB Min | A: 31.09 (+0.11s | 0.4%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 289 | Larkin Stevens | 31.20 | 10 | BB Min | A: 31.09 (+0.11s | 0.4%) | Mission Aurora Colorado Swimmi | 03/14/2025 | 2025 CO NJ Mile High Championships | |
| 290 | Dillan Quarrey | 31.21 | 9 | BB Min | A: 31.09 (+0.12s | 0.4%) | West Linn | 02/13/2026 | 2026 OR HS 6A 5 | |
| 291 | Parker Sampson | 31.22 | 10 | BB Min | A: 31.09 (+0.13s | 0.4%) | Denver Swim Academy | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 292 | Ashwin Tiwari | 31.22 | 9 | BB Min | A: 31.09 (+0.13s | 0.4%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 293 | Luka McGrath | 31.23 | 10 | BB Min | A: 31.09 (+0.14s | 0.4%) | Multnomah Athletic Club | 01/23/2026 | 2026 TTSC Winter Qualifier | |
| 294 | Rory Blum | 31.24 | 9 | BB Min | A: 31.09 (+0.15s | 0.5%) | Clearfireld Cuda Aquatic Team | 02/13/2026 | 2026 OR HS 6A 4 | |
| 295 | Elijah Hutagalung | 31.24 | 10 | BB Min | A: 31.09 (+0.15s | 0.5%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 296 | Samuel Evanovich | 31.25 | 10 | BB Min | A: 31.09 (+0.16s | 0.5%) | Academy Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 297 | Jaezyn Magnaye | 31.26 | 10 | BB Min | A: 31.09 (+0.17s | 0.5%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 298 | Gairen Bean | 31.28 | 10 | BB Min | A: 31.09 (+0.19s | 0.6%) | South Bay Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 299 | Mason Sovich | 31.29 | 9 | BB Min | A: 31.09 (+0.20s | 0.6%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 300 | Jaxon Despain | 31.30 | 9 | BB Min | A: 31.09 (+0.21s | 0.7%) | Denver Swim Academy | 02/27/2026 | 2026 CO CSI SC Age Group 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.