Western Zone Zone Boys 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 351 | William Doran | 45.68 | 10 | BB Min | A: 42.09 (+3.59s | 7.9%) | SlipStream Aquatics | 03/06/2026 | 2026 CO 14 U Silver State | |
| 352 | Guo-shiun Gau | 45.70 | 10 | BB Min | A: 42.09 (+3.61s | 7.9%) | Seattle Metropolitan Aquatic C | 01/31/2026 | 2026 PN KING Beast IMX IMR Invitational Appr | |
| 353 | Jay Kowren | 45.70 | 10 | BB Min | A: 42.09 (+3.61s | 7.9%) | Bainbridge Island Swim Club | 04/18/2026 | 2026 PN UPAC Mark Olson Classic Approved | |
| 354 | Ruslan Kalinnikov | 45.71 | 8 | BB Min | A: 42.09 (+3.62s | 7.9%) | Olympus Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 355 | Chase White | 45.72 | 10 | BB Min | A: 42.09 (+3.63s | 7.9%) | South Valley Makos | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 356 | Malik Basic | 45.73 | 9 | BB Min | A: 42.09 (+3.64s | 8.0%) | Olympus Aquatics | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
| 357 | Titan Otterstrom | 45.74 | 10 | BB Min | A: 42.09 (+3.65s | 8.0%) | Aquawolves Swimming | 03/06/2026 | 2026 CO 14 U Silver State | |
| 358 | Noah Gaal | 45.75 | 9 | BB Min | A: 42.09 (+3.66s | 8.0%) | Aces Swim Club | 12/12/2025 | 2025 CO NJ Blizzard Invite | |
| 359 | Bruce Zhang | 45.76 | 9 | BB Min | A: 42.09 (+3.67s | 8.0%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 360 | Luke Song | 45.76 | 10 | BB Min | A: 42.09 (+3.67s | 8.0%) | Tri-city Channel Cats | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 361 | Owen Friedman | 45.76 | 9 | BB Min | A: 42.09 (+3.67s | 8.0%) | Legacy Aquatics | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 362 | Lucas Yang | 45.77 | 10 | BB Min | A: 42.09 (+3.68s | 8.0%) | Bay Club Santa Clara Dolphins | 02/28/2026 | Swim South Bay | |
| 363 | Aiden Huang | 45.80 | 10 | BB Min | A: 42.09 (+3.71s | 8.1%) | DeAnza Cupertino Aquatics | 03/07/2026 | DACA CBA Meet | |
| 364 | Oleg Rassadin | 45.80 | 8 | BB Min | A: 42.09 (+3.71s | 8.1%) | Denver Swim Academy | 02/21/2026 | 2026 CO DSA Last Chance | |
| 365 | Fedor Evstigneev | 45.80 | 9 | BB Min | A: 42.09 (+3.71s | 8.1%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 366 | Beau Jakubowski | 45.83 | 9 | BB Min | A: 42.09 (+3.74s | 8.2%) | Aces Swim Club | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 367 | Daniel Schad | 45.83 | 10 | BB Min | A: 42.09 (+3.74s | 8.2%) | Maui Dolphins Swim Club | 05/16/2026 | 2026 MAGSA 12 U ABC And Special Olympics Meet | |
| 368 | Aemon Meenaghan | 45.84 | 10 | BB Min | A: 42.09 (+3.75s | 8.2%) | Team Eugene Aquatics | 03/14/2026 | 2026 TEAM Shootout | |
| 369 | Henry Moore | 45.84 | 9 | BB Min | A: 42.09 (+3.75s | 8.2%) | Ladera Oaks | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 370 | Owen Deis | 45.85 | 10 | BB Min | A: 42.09 (+3.76s | 8.2%) | Clovis Swim Club | 11/22/2025 | 2025 Dr Dowain Wright Memorial ABC | |
| 371 | Andrew Knol | 45.86 | 10 | BB Min | A: 42.09 (+3.77s | 8.2%) | Pacific Swim | 01/11/2026 | 2026 SI FAST 14U RISING STARS 3 | |
| 372 | Kellan Naisbitt | 45.89 | 10 | BB Min | A: 42.09 (+3.80s | 8.3%) | Mission Viejo Nadadores | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 373 | Luke Wang | 45.90 | 9 | BB Min | A: 42.09 (+3.81s | 8.3%) | Flatiron Athletic Club | 01/16/2026 | 2026 CO CUDA Classic | |
| 374 | Brooks Switaj | 45.91 | 9 | BB Min | A: 42.09 (+3.82s | 8.3%) | Bellevue Club Swim Team | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 375 | Dylan Briley | 45.91 | 10 | BB Min | A: 42.09 (+3.82s | 8.3%) | Northern Lights Swim Club | 11/21/2025 | NLSC Sprint Classic | |
| 376 | Carter Hollingsworth | 45.92 | 10 | BB Min | A: 42.09 (+3.83s | 8.3%) | Castle Rock Swimming | 02/14/2026 | 2026 CO ACES Winter Open | |
| 377 | Kurt Ramos | 45.93 | 10 | BB Min | A: 42.09 (+3.84s | 8.4%) | Vacaville Swim Club | 11/15/2025 | NVST Swimming Into Fall 2025 | |
| 378 | Levi Cheung | 45.93 | 8 | BB Min | A: 42.09 (+3.84s | 8.4%) | Beaverton Area Aquatics Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 379 | Callahan Espiritu | 45.93 | 8 | BB Min | A: 42.09 (+3.84s | 8.4%) | Aquazot Swim Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 380 | Carter McDonald | 45.94 | 9 | BB Min | A: 42.09 (+3.85s | 8.4%) | Seattle Metropolitan Aquatic C | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 381 | Travis Sullivan | 45.95 | 10 | BB Min | A: 42.09 (+3.86s | 8.4%) | Mission Valley YMCA | 05/03/2026 | Mission Valley YMCA Rising Stars 1 | |
| 382 | Benjamin Kenton | 45.97 | 10 | BB Min | A: 42.09 (+3.88s | 8.4%) | Hillsboro Swim Team | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 383 | Cooper Rasmussen | 45.98 | 9 | BB Min | A: 42.09 (+3.89s | 8.5%) | David Douglas | 02/13/2026 | 2026 OR HS 6A 4 | |
| 384 | Blake Hadfield | 45.99 | 10 | BB Min | A: 42.09 (+3.90s | 8.5%) | Aulea Swim Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 385 | Krosby Thomure | 46.00 | 10 | BB Min | A: 42.09 (+3.91s | 8.5%) | Spokane Waves Aquatic Team | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 386 | Jamie Pan | 46.01 | 10 | BB Min | A: 42.09 (+3.92s | 8.5%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 387 | Porter Pitti | 46.02 | 9 | BB Min | A: 42.09 (+3.93s | 8.5%) | Olympus Aquatics | 09/19/2025 | 2025 Thomas G Thorum IMX Challenge | |
| 388 | Emory Hulslander | 46.03 | 10 | BB Min | A: 42.09 (+3.94s | 8.6%) | Aces Swim Club | 03/07/2025 | 2025 CO CSI Silver State Championships | |
| 389 | Alfie Mobbs | 46.05 | 9 | BB Min | A: 42.09 (+3.96s | 8.6%) | Lake Oswego Swim Club | 01/02/2026 | 2026 CST Shark Chase Invitational | |
| 390 | Luke Cheng | 46.06 | 10 | BB Min | A: 42.09 (+3.97s | 8.6%) | Otter Swim Club | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 391 | Kaleb Luu | 46.07 | 9 | BB Min | A: 42.09 (+3.98s | 8.6%) | Pleasanton Seahawks | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 392 | Ariovistus Pardee | 46.07 | 10 | BB Min | A: 42.09 (+3.98s | 8.6%) | Maui Swim Club | 11/15/2025 | 2025 MAGSA SCY A3 Meet | |
| 393 | Hayden Wang | 46.07 | 9 | BB Min | A: 42.09 (+3.98s | 8.6%) | McGrath Marlins Swim Team | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 394 | Watson She | 46.10 | 10 | BB Min | A: 42.09 (+4.01s | 8.7%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 395 | Austin Dunn | 46.10 | 9 | BB Min | A: 42.09 (+4.01s | 8.7%) | Streamliner Aquatics | 11/16/2025 | Fall Mixer Block Party #2 | |
| 396 | Mario Aoki | 46.11 | 9 | BB Min | A: 42.09 (+4.02s | 8.7%) | Falfins Swimming | 03/06/2026 | 2026 CO 14 U Silver State | |
| 397 | Rufus Tang | 46.13 | 10 | BB Min | A: 42.09 (+4.04s | 8.8%) | Pacific Dragons Swim Team | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 398 | Nathan Applegate | 46.13 | 9 | BB Min | A: 42.09 (+4.04s | 8.8%) | Mesa Aquatics Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 399 | Nakai LaMere | 46.14 | 10 | BB Min | A: 42.09 (+4.05s | 8.8%) | Quicksilver Swimming | 10/11/2025 | QSS Santa Cruz Competenicia C B A+ | |
| 400 | Daniel Chang | 46.16 | 9 | BB Min | A: 42.09 (+4.07s | 8.8%) | Brea Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
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.