Western Zone Zone Girls 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 | Bella Li | 45.00 | 9 | BB Min | A: 42.79 (+2.21s | 4.9%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 402 | Gabriella Magpantay | 45.01 | 9 | BB Min | A: 42.79 (+2.22s | 4.9%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 403 | Nora Zhuang | 45.02 | 10 | BB Min | A: 42.79 (+2.23s | 5.0%) | Rancho Family YMCA | 01/17/2026 | 2026 SBA All Ages A BB Meet | |
| 404 | Ariya Ajay | 45.03 | 9 | BB Min | A: 42.79 (+2.24s | 5.0%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 405 | Makai Tanoai | 45.03 | 9 | BB Min | A: 42.79 (+2.24s | 5.0%) | Unattached | 11/08/2025 | BIG ISLAND SWIMMING @ KCAC | |
| 406 | Emily Hu | 45.04 | 10 | BB Min | A: 42.79 (+2.25s | 5.0%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 407 | Harper Degner | 45.04 | 8 | BB Min | A: 42.79 (+2.25s | 5.0%) | Denver Swim Academy | 02/21/2026 | 2026 CO DSA Last Chance | |
| 408 | Adelie McLeod | 45.06 | 10 | BB Min | A: 42.79 (+2.27s | 5.0%) | Issaquah Swim Team | 02/07/2026 | 2026 PN IST Feb Winter Invitational Approved | |
| 409 | Arrietty Shieh | 45.06 | 10 | BB Min | A: 42.79 (+2.27s | 5.0%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
| 410 | Michelle Mitnick | 45.06 | 10 | BB Min | A: 42.79 (+2.27s | 5.0%) | Horizon Swimming | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 411 | Makena Kam | 45.06 | 10 | BB Min | A: 42.79 (+2.27s | 5.0%) | Beach Cities Alpha | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 412 | Lilia Yamamoto | 45.09 | 10 | BB Min | A: 42.79 (+2.30s | 5.1%) | Splash Aquatics | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 413 | Maya Koren | 45.10 | 10 | BB Min | A: 42.79 (+2.31s | 5.1%) | Manoa Aquatics | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | |
| 414 | Amber Leu | 45.11 | 10 | BB Min | A: 42.79 (+2.32s | 5.1%) | Sacramento Aquatics Club | 11/08/2025 | Folsom Classic 2025 | |
| 415 | Hayden Gallagher | 45.13 | 10 | BB Min | A: 42.79 (+2.34s | 5.2%) | Sunnyvale Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 416 | Edith Cass | 45.14 | 10 | BB Min | A: 42.79 (+2.35s | 5.2%) | Lake Oswego Swim Club | 05/09/2026 | 2026 Spring Sprinter Invitational | |
| 417 | Tess Jackman | 45.15 | 10 | BB Min | A: 42.79 (+2.36s | 5.2%) | King Aquatic Club | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 418 | Felicity Van der Staay | 45.15 | 10 | BB Min | A: 42.79 (+2.36s | 5.2%) | Palo Alto Stanford Aquatics | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 419 | Sylvia Li | 45.17 | 9 | BB Min | A: 42.79 (+2.38s | 5.3%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 420 | Harper Ramos | 45.19 | 10 | BB Min | A: 42.79 (+2.40s | 5.3%) | Unattached | 09/13/2025 | East Bay Silver Dolphins Short Course C B BB+ | |
| 421 | Vera Asadamongkol | 45.19 | 10 | BB Min | A: 42.79 (+2.40s | 5.3%) | San Ramon Valley Aquatics | 03/28/2026 | Albany Armada Aquatics SC C B BB+ | |
| 422 | Eisley Shutt | 45.20 | 10 | BB Min | A: 42.79 (+2.41s | 5.3%) | Mesa Aquatics Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 423 | Louise Centino | 45.20 | 10 | BB Min | A: 42.79 (+2.41s | 5.3%) | Rio Salado Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 424 | Saylan Petersen | 45.21 | 10 | BB Min | A: 42.79 (+2.42s | 5.4%) | Port Angeles Swim Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 425 | Aileen Huang | 45.21 | 10 | BB Min | A: 42.79 (+2.42s | 5.4%) | East Bay Bat Rays | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 426 | Katie Wang | 45.22 | 10 | BB Min | A: 42.79 (+2.43s | 5.4%) | Issaquah Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 2 | |
| 427 | Julie Dong | 45.24 | 9 | BB Min | A: 42.79 (+2.45s | 5.4%) | Wave Aquatics | 01/24/2026 | 2026 PN WAVE Winter Invitational Approved | |
| 428 | Kiko Kurata | 45.25 | 10 | BB Min | A: 42.79 (+2.46s | 5.4%) | Splash Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 429 | Olivia Du | 45.25 | 9 | BB Min | A: 42.79 (+2.46s | 5.4%) | West Coast Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 3 Approved | |
| 430 | Hannah Anderson | 45.29 | 10 | BB Min | A: 42.79 (+2.50s | 5.5%) | Maverick Aquatics | 04/17/2026 | 2026 CO Jolean Scott Memorial | |
| 431 | Phoebe Chia | 45.30 | 10 | BB Min | A: 42.79 (+2.51s | 5.5%) | Pacific Swim | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 432 | Raegan Berry | 45.31 | 10 | BB Min | A: 42.79 (+2.52s | 5.6%) | Flatiron Athletic Club | 03/13/2026 | Mile High Championship Invitational | |
| 433 | Aviva Behm | 45.33 | 10 | BB Min | A: 42.79 (+2.54s | 5.6%) | Aquawolves Swimming | 03/06/2026 | 2026 CO 14 U Silver State | |
| 434 | Jaclyn Dixon | 45.34 | 10 | BB Min | A: 42.79 (+2.55s | 5.6%) | Unattached | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 435 | Rihanna Chopra | 45.35 | 10 | BB Min | A: 42.79 (+2.56s | 5.6%) | Pleasanton Seahawks | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 436 | Alana Duffy | 45.35 | 10 | BB Min | A: 42.79 (+2.56s | 5.6%) | Punahou Aquatics Institute | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 437 | Bella Chen | 45.35 | 9 | BB Min | A: 42.79 (+2.56s | 5.6%) | Bellevue Club Swim Team | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 438 | Alice Redd | 45.36 | 10 | BB Min | A: 42.79 (+2.57s | 5.7%) | North Coast Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 439 | Malia Pavloff | 45.38 | 10 | BB Min | A: 42.79 (+2.59s | 5.7%) | Daly City Dolphins | 01/24/2026 | 2026 Zone 1 North Championships | |
| 440 | Ellie Zhao | 45.40 | 9 | BB Min | A: 42.79 (+2.61s | 5.7%) | California Dolphins Swim Team | 03/28/2026 | PC CDST SC C B BB+ Meet | |
| 441 | Lacy Duval | 45.40 | 10 | BB Min | A: 42.79 (+2.61s | 5.7%) | Legacy Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 442 | Lilliana Cox | 45.41 | 10 | BB Min | A: 42.79 (+2.62s | 5.8%) | Swim Kauai Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 443 | Annabelle Zee | 45.42 | 9 | BB Min | A: 42.79 (+2.63s | 5.8%) | Burlingame Aquatics | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 444 | Jenna Littlejohn | 45.42 | 10 | BB Min | A: 42.79 (+2.63s | 5.8%) | Eugene City Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 445 | Sailor Li | 45.43 | 8 | BB Min | A: 42.79 (+2.64s | 5.8%) | San Ramon Valley Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 446 | Quail Serra | 45.44 | 9 | BB Min | A: 42.79 (+2.65s | 5.8%) | Sebastopol Sea Serpents | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 447 | Adeline Ko | 45.44 | 10 | BB Min | A: 42.79 (+2.65s | 5.8%) | Pleasanton Seahawks | 09/27/2025 | Orinda Aquatics SC C B BB+ Meet | |
| 448 | Piper Brown | 45.45 | 10 | BB Min | A: 42.79 (+2.66s | 5.9%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 449 | Ava Sysum | 45.45 | 10 | BB Min | A: 42.79 (+2.66s | 5.9%) | San Ramon Valley Aquatics | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 450 | Harlow Herman | 45.47 | 10 | BB Min | A: 42.79 (+2.68s | 5.9%) | Aquawolves Swimming | 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.