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 | |
|---|---|---|---|---|---|---|---|---|---|
| 401 | Muyang He | 45.21 | 8 | BB Min | A: 42.09 (+3.12s | 6.9%) | Santa Clara Swim Club | 02/08/2025 | Swim South Bay | |
| 402 | Aiden Cheung | 45.23 | 10 | BB Min | A: 42.09 (+3.14s | 6.9%) | Sierra Marlins Swim Team | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 403 | Jimmy Chen | 45.25 | 9 | BB Min | A: 42.09 (+3.16s | 7.0%) | Monterey Park Manta Rays | 12/12/2025 | 2025 CA SCS RAA WAG | |
| 404 | Francis Lou | 45.26 | 10 | BB Min | A: 42.09 (+3.17s | 7.0%) | Bay Club Aquatics | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 405 | William Yao | 45.27 | 9 | BB Min | A: 42.09 (+3.18s | 7.0%) | Fontana Aquatics Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 406 | Mike Semenov | 45.31 | 10 | BB Min | A: 42.09 (+3.22s | 7.1%) | Beach Cities Alpha | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 407 | Elliott Lindley | 45.33 | 9 | BB Min | A: 42.09 (+3.24s | 7.1%) | Los Altos Mountain View Aquati | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 408 | Ari Mobasseri | 45.36 | 8 | BB Min | A: 42.09 (+3.27s | 7.2%) | Aquazot Swim Club | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 409 | Alexander Mekjian | 45.37 | 10 | BB Min | A: 42.09 (+3.28s | 7.2%) | North Coast Aquatics | 01/31/2026 | 2026 SI HSA All Ages NTS Meet | |
| 410 | Jayke Hung | 45.37 | 9 | BB Min | A: 42.09 (+3.28s | 7.2%) | Bellevue Club Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 411 | Eddie Bi | 45.40 | 9 | BB Min | A: 42.09 (+3.31s | 7.3%) | California Dolphins Swim Team | 12/05/2025 | Pacific Swim SC C B BB+ Hosted By TERA | |
| 412 | Jaxon Despain | 45.42 | 8 | BB Min | A: 42.09 (+3.33s | 7.3%) | Denver Swim Academy | 02/28/2025 | 2025 CO CSI 14 U Age Group Championships | |
| 413 | Milo Gurkan | 45.43 | 10 | BB Min | A: 42.09 (+3.34s | 7.4%) | Seals Aquatics | 09/27/2025 | Neptune Swimming Fall Classic | |
| 414 | Cyrill Reppen | 45.44 | 10 | BB Min | A: 42.09 (+3.35s | 7.4%) | American Renaissance Academy | 11/15/2025 | SKA Home Meet 111525 | |
| 415 | Everett Jo | 45.44 | 9 | BB Min | A: 42.09 (+3.35s | 7.4%) | North State Narwhals | 11/22/2025 | Thankswimming Classic 2025 | |
| 416 | Bar Eibschutz | 45.45 | 10 | BB Min | A: 42.09 (+3.36s | 7.4%) | Los Altos Mountain View Aquati | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 417 | Kai Hawkes | 45.45 | 10 | BB Min | A: 42.09 (+3.36s | 7.4%) | Multnomah Athletic Club | 12/05/2025 | 2025 Tualatin Hills Holiday Classic | |
| 418 | James Davidson | 45.46 | 10 | BB Min | A: 42.09 (+3.37s | 7.4%) | Denver Swim Academy | 01/23/2026 | 2026 CO TOPS Colorado Open | |
| 419 | Lichen Chi | 45.47 | 8 | BB Min | A: 42.09 (+3.38s | 7.4%) | Tualatin Hills Swim Club | 11/07/2025 | 2025 THSC November Open | |
| 420 | Deniz Gokbulut | 45.47 | 10 | BB Min | A: 42.09 (+3.38s | 7.4%) | Pro Swimming | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | |
| 421 | Christian Hernandez | 45.48 | 10 | BB Min | A: 42.09 (+3.39s | 7.5%) | Walnut Creek Aquabears | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 422 | Stryker Fonseca | 45.48 | 9 | BB Min | A: 42.09 (+3.39s | 7.5%) | Barracuda Aquatic Club | 04/25/2025 | 2025 CCAT Easter Pentathlon | |
| 423 | Jack Peterson | 45.51 | 10 | BB Min | A: 42.09 (+3.42s | 7.5%) | Bend Swim Club | 12/18/2025 | Bend Swim Club Intersquad | |
| 424 | Luca Goulet | 45.52 | 10 | BB Min | A: 42.09 (+3.43s | 7.5%) | King Aquatic Club | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 425 | Ryan Ferguson | 45.53 | 9 | BB Min | A: 42.09 (+3.44s | 7.6%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 426 | Juan Lopez | 45.54 | 10 | BB Min | A: 42.09 (+3.45s | 7.6%) | San Benito Aquatics | 09/27/2025 | 2025 MAC Season Kick Off | |
| 427 | Cannon Brown | 45.55 | 9 | BB Min | A: 42.09 (+3.46s | 7.6%) | Olympic Cascade Aquatics | 01/18/2026 | 2026 PN BC Snowflake Classic Invite Approved | |
| 428 | Maksim Kashkolda | 45.55 | 10 | BB Min | A: 42.09 (+3.46s | 7.6%) | Horizon Swimming | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 429 | Ethan Li | 45.57 | 8 | BB Min | A: 42.09 (+3.48s | 7.6%) | Pacific Dragons Swim Team | 01/24/2026 | 2026 PN PDST Winter Invitational Meet Approv | |
| 430 | Jaxon Mendoza | 45.57 | 10 | BB Min | A: 42.09 (+3.48s | 7.6%) | San Benito Aquatics | 11/14/2025 | 2025 Santa Clara Swim Club SC CBA Meet | |
| 431 | Noble Rickstrew | 45.57 | 10 | BB Min | A: 42.09 (+3.48s | 7.6%) | Excel Aquatics | 12/05/2025 | 2025 Beaman Toyota Meet Of Champs | |
| 432 | Vincent Kaldau | 45.58 | 9 | BB Min | A: 42.09 (+3.49s | 7.7%) | VillaSport Swim Team | 12/06/2024 | 2024 Gulf Age Group Championships | |
| 433 | Vincent Yue | 45.59 | 10 | BB Min | A: 42.09 (+3.50s | 7.7%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 434 | Leif Borg | 45.59 | 10 | BB Min | A: 42.09 (+3.50s | 7.7%) | Hillsboro Swim Team | 01/16/2026 | 2026 THSC 14 U Winter Showcase | |
| 435 | Daniel Kalinovski | 45.60 | 10 | BB Min | A: 42.09 (+3.51s | 7.7%) | Otter Swim Club | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 436 | Jed El Abed | 45.61 | 9 | BB Min | A: 42.09 (+3.52s | 7.7%) | H2o Swim Team | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 437 | Kellen Cox | 45.61 | 9 | BB Min | A: 42.09 (+3.52s | 7.7%) | Denver Athletic Club Swim Team | 01/16/2026 | 2026 CO CUDA Classic | |
| 438 | Henry Jian | 45.63 | 9 | BB Min | A: 42.09 (+3.54s | 7.8%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 439 | Vincent Xie | 45.66 | 10 | BB Min | A: 42.09 (+3.57s | 7.8%) | Beaverton Area Aquatics Club | 02/07/2026 | 2026 OR HEAT BC Blastoff | |
| 440 | Isaiah Fadillah | 45.67 | 9 | BB Min | A: 42.09 (+3.58s | 7.8%) | California Dolphins Swim Team | 11/08/2025 | Albany Armada Aquatics C B BB+ Meet | |
| 441 | Youssef Mahassine | 45.67 | 10 | BB Min | A: 42.09 (+3.58s | 7.8%) | Walnut Creek Aquabears | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 442 | Elias Lien | 45.68 | 7 | BB Min | A: 42.09 (+3.59s | 7.9%) | Santa Clara Swim Club | 11/08/2025 | Folsom Classic 2025 | |
| 443 | Jasper Chase | 45.68 | 10 | BB Min | A: 42.09 (+3.59s | 7.9%) | Coeur D\\\\\\'alene Area Swim Team | 01/16/2026 | 2026 Hells Canyon Invitational | |
| 444 | Victor Secor | 45.69 | 9 | BB Min | A: 42.09 (+3.60s | 7.9%) | Orinda Aquatics | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 445 | 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 | |
| 446 | Aiden Tam | 45.70 | 10 | BB Min | A: 42.09 (+3.61s | 7.9%) | Sunnyvale Swim Club | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 447 | Ruslan Kalinnikov | 45.71 | 8 | BB Min | A: 42.09 (+3.62s | 7.9%) | Olympus Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 448 | Mikail Adlinsyah | 45.71 | 9 | BB Min | A: 42.09 (+3.62s | 7.9%) | Swim Excellence Academy | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 449 | Louis Yu | 45.72 | 8 | BB Min | A: 42.09 (+3.63s | 7.9%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 450 | Malik Basic | 45.73 | 9 | BB Min | A: 42.09 (+3.64s | 8.0%) | Olympus Aquatics | 12/29/2025 | 60th Kearns Holiday Open Invitational | |
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.