Western Zone Zone Boys 10 & under - 50 Y Back
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 301 | Evan Tomizawa | 38.99 | 10 | BB Min | A: 37.59 (+1.40s | 3.6%) | Kamehameha Swim Club | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 302 | Harvey Mei | 39.00 | 9 | BB Min | A: 37.59 (+1.41s | 3.6%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 303 | Michael Campbell | 39.00 | 10 | BB Min | A: 37.59 (+1.41s | 3.6%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 304 | Rhys Beyeler-Evans | 39.01 | 10 | BB Min | A: 37.59 (+1.42s | 3.6%) | Piedmont Swim Team | 05/29/2026 | Piedmont Swim Team Club Championships | |
| 305 | Callen Trainer | 39.04 | 10 | BB Min | A: 37.59 (+1.45s | 3.7%) | Socal Aquatics Association | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 306 | Kyle Tang | 39.04 | 9 | BB Min | A: 37.59 (+1.45s | 3.7%) | Aquazot Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 307 | Eddie Bi | 39.08 | 9 | BB Min | A: 37.59 (+1.49s | 3.8%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 308 | Brayden Nguyen | 39.10 | 10 | BB Min | A: 37.59 (+1.51s | 3.9%) | San Jose Goosemonkeys | 02/28/2026 | Swim South Bay | |
| 309 | Brendan Ma | 39.10 | 9 | BB Min | A: 37.59 (+1.51s | 3.9%) | Orinda Aquatics | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 310 | Joel Stees | 39.12 | 10 | BB Min | A: 37.59 (+1.53s | 3.9%) | Aquawolves Swimming | 02/14/2026 | 2026 CO AQUA February Home Meet | |
| 311 | Mark Taylor | 39.13 | 9 | BB Min | A: 37.59 (+1.54s | 3.9%) | Seal Beach Swim Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 312 | Conrad Shwe | 39.14 | 9 | BB Min | A: 37.59 (+1.55s | 4.0%) | Clovis Swim Club | 01/10/2026 | 2026 Clovis Swim Club Winter Open | |
| 313 | Carson Yin | 39.14 | 10 | BB Min | A: 37.59 (+1.55s | 4.0%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 314 | Oliver Tadday | 39.17 | 10 | BB Min | A: 37.59 (+1.58s | 4.0%) | Gold\\\\\\'s Aquatics Club (Camas) | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 315 | Martin Li | 39.19 | 9 | BB Min | A: 37.59 (+1.60s | 4.1%) | Wave Aquatics | 12/12/2025 | 2025 PN 14 Under Short Course Champs Approved | |
| 316 | Luca Fu | 39.21 | 9 | BB Min | A: 37.59 (+1.62s | 4.1%) | Lakeridge Swim Team | 03/14/2026 | 2026 NNA AGO | |
| 317 | Elliott Johnson | 39.21 | 10 | BB Min | A: 37.59 (+1.62s | 4.1%) | Bellevue Club Swim Team | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 318 | Zuriel Cariazo | 39.24 | 10 | BB Min | A: 37.59 (+1.65s | 4.2%) | Montrose Marlins Swim Club | 06/27/2026 | 2026 CO Montrose Marlins Summer Open | |
| 319 | Landon Gura | 39.25 | 10 | BB Min | A: 37.59 (+1.66s | 4.2%) | North Coast Aquatics | 11/08/2025 | HSA All Ages NTS | |
| 320 | Thomas Halford | 39.28 | 10 | BB Min | A: 37.59 (+1.69s | 4.3%) | Pikes Peak Athletics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 321 | Ryan Lee | 39.29 | 10 | BB Min | A: 37.59 (+1.70s | 4.3%) | Highlands Ranch Aquatics | 02/20/2026 | 2026 CO PPA February Frenzy Last Chance Meet | |
| 322 | Arick Yuan | 39.30 | 10 | BB Min | A: 37.59 (+1.71s | 4.4%) | Santa Clara Swim Club | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 323 | Brooks Farrington | 39.30 | 9 | BB Min | A: 37.59 (+1.71s | 4.4%) | Life Time Oregon Swim Team | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 324 | Aiden Mulcahy | 39.31 | 10 | BB Min | A: 37.59 (+1.72s | 4.4%) | Aulea Swim Club | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 325 | Charles Tan | 39.32 | 10 | BB Min | A: 37.59 (+1.73s | 4.4%) | Eastside Aquatic Swim Team | 04/18/2026 | 2026 PN MMSC Marlins Madness Approved | |
| 326 | Mason Sovich | 39.32 | 9 | BB Min | A: 37.59 (+1.73s | 4.4%) | Olympic Cascade Aquatics | 02/27/2026 | 2026 PN February AGI, Div 3 Approved | |
| 327 | Ian Zhang | 39.34 | 10 | BB Min | A: 37.59 (+1.75s | 4.4%) | Apex | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 328 | Jasper Timmons | 39.34 | 10 | B: 38.49 (+0.85s | 2.2%) | Cascade Swim Club | 03/07/2026 | 2026 PDST Mar Pentathlon Last Chance Approved | ||
| 329 | Noble Rickstrew | 39.34 | 10 | BB Min | A: 37.59 (+1.75s | 4.4%) | Excel Aquatics | 01/16/2026 | 2026 TYR Mardi Gras Invite | |
| 330 | Luca Desset | 39.35 | 10 | BB Min | A: 37.59 (+1.76s | 4.5%) | Kona Aquatics Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 331 | Mateo Sison | 39.38 | 10 | BB Min | A: 37.59 (+1.79s | 4.5%) | San Ramon Valley Aquatics | 10/18/2025 | PC SRVA SCY B BB+ Meet | |
| 332 | Austin Mitchell | 39.38 | 10 | BB Min | A: 37.59 (+1.79s | 4.5%) | Valley Aquatics | 11/16/2025 | 2025 PN PAC Q Meet | |
| 333 | Jay Kowren | 39.38 | 10 | BB Min | A: 37.59 (+1.79s | 4.5%) | Bainbridge Island Swim Club | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 334 | Samuel Hora | 39.40 | 10 | BB Min | A: 37.59 (+1.81s | 4.6%) | Montrose Marlins Swim Club | 05/29/2026 | 2026 CO Cortez Summer Open | |
| 335 | Emory Hulslander | 39.40 | 10 | BB Min | A: 37.59 (+1.81s | 4.6%) | Aces Swim Club | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 336 | Terence Wu | 39.41 | 9 | BB Min | A: 37.59 (+1.82s | 4.6%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 337 | Pranav Chandramouli | 39.42 | 10 | BB Min | A: 37.59 (+1.83s | 4.6%) | Gold\\\\\\'s Aquatics Club | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 338 | Beau Jakubowski | 39.42 | 9 | BB Min | A: 37.59 (+1.83s | 4.6%) | Aces Swim Club | 02/14/2026 | 2026 CO ACES Winter Open | |
| 339 | Watson She | 39.43 | 10 | BB Min | A: 37.59 (+1.84s | 4.7%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 340 | Dylan Tian | 39.44 | 8 | BB Min | A: 37.59 (+1.85s | 4.7%) | Santa Clara Swim Club | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 341 | Collin James | 39.46 | 10 | BB Min | A: 37.59 (+1.87s | 4.7%) | West Linn | 02/15/2025 | 2025 OR HS 6A 5 | |
| 342 | Brendon Kim | 39.46 | 10 | BB Min | A: 37.59 (+1.87s | 4.7%) | H2o Swim Team | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 343 | Isaac Marcuson | 39.47 | 10 | BB Min | A: 37.59 (+1.88s | 4.8%) | Aspire Aquatics of Colorado | 03/06/2026 | 2026 CO 14 U Silver State | |
| 344 | Joshua Lung | 39.48 | 10 | BB Min | A: 37.59 (+1.89s | 4.8%) | Unattached | 11/22/2025 | 2025 Dr Dowain Wright Memorial ABC | |
| 345 | HanJun Zhang | 39.48 | 10 | BB Min | A: 37.59 (+1.89s | 4.8%) | Wasc | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 346 | Nicholas Mosendz | 39.49 | 10 | BB Min | A: 37.59 (+1.90s | 4.8%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 347 | Norman Glauberman | 39.50 | 10 | BB Min | A: 37.59 (+1.91s | 4.8%) | Sierra Marlins Swim Team | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 348 | Miles Kavanaugh | 39.51 | 10 | BB Min | A: 37.59 (+1.92s | 4.9%) | University Place Aquatic Club | 04/26/2025 | 2025 PN UPAC Mark Olson Invitational | |
| 349 | Shay Jain | 39.55 | 9 | BB Min | A: 37.59 (+1.96s | 5.0%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 350 | Noah Gaal | 39.55 | 9 | BB Min | A: 37.59 (+1.96s | 5.0%) | Aces Swim Club | 03/06/2026 | 2026 CO 14 U Silver State | |
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.