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 | |
|---|---|---|---|---|---|---|---|---|---|
| 301 | Madison Ngo | 44.59 | 10 | BB Min | A: 42.79 (+1.80s | 4.0%) | Porter Valley Polar Bears | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 302 | Mia Tursic | 44.62 | 10 | BB Min | A: 42.79 (+1.83s | 4.1%) | Kearns Youth Aquatic Team | 11/21/2025 | 2025 MAC Thanksgiving Invitational | |
| 303 | Zoe Lau | 44.63 | 9 | BB Min | A: 42.79 (+1.84s | 4.1%) | Vallejo Aquatic Club | 12/06/2025 | FeSSStive FroSSSt CBA+ 2025 | |
| 304 | Chloe Wang | 44.66 | 10 | BB Min | A: 42.79 (+1.87s | 4.2%) | Pleasanton Seahawks | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 305 | Amelia Wilden | 44.68 | 10 | BB Min | A: 42.79 (+1.89s | 4.2%) | Ramona Swim Team | 12/05/2025 | 2025 SI JBST Wag Max Meet | |
| 306 | Hana Dolan | 44.68 | 10 | BB Min | A: 42.79 (+1.89s | 4.2%) | Pearl City Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 307 | Emilia Smith | 44.69 | 10 | BB Min | A: 42.79 (+1.90s | 4.3%) | Falfins Swimming | 12/19/2025 | 2025 CO Falfins Holiday Open | |
| 308 | Jojo Qiang-Zhu | 44.70 | 10 | BB Min | A: 42.79 (+1.91s | 4.3%) | Alto Swim Club | 01/24/2026 | 2026 Zone 1 North Championships | |
| 309 | Amy Qian | 44.72 | 9 | BB Min | A: 42.79 (+1.93s | 4.3%) | Santa Clara Swim Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 310 | Kateri Leahy | 44.72 | 10 | BB Min | A: 42.79 (+1.93s | 4.3%) | South Bay Aquatics | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 311 | Rachael Noguti | 44.74 | 10 | BB Min | A: 42.79 (+1.95s | 4.4%) | South Bay Aquatics | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 312 | Jesslyn Yong | 44.75 | 10 | BB Min | A: 42.79 (+1.96s | 4.4%) | Palo Alto Stanford Aquatics | 01/24/2026 | 2026 Zone 1 North Championships | |
| 313 | Bella Chen | 44.76 | 9 | BB Min | A: 42.79 (+1.97s | 4.4%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 314 | Emma Salum | 44.77 | 10 | BB Min | A: 42.79 (+1.98s | 4.4%) | Calabasas Waves | 12/13/2024 | 2024 CA SCAT SCS WAG | |
| 315 | Ava Xing | 44.78 | 9 | BB Min | A: 42.79 (+1.99s | 4.4%) | Santa Clara Swim Club | 03/28/2026 | Swim South Bay | |
| 316 | Sofia Khalfin | 44.79 | 9 | BB Min | A: 42.79 (+2.00s | 4.5%) | Terrapins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 317 | Alinah Tracy | 44.79 | 10 | BB Min | A: 42.79 (+2.00s | 4.5%) | Unattached | 11/08/2025 | BIG ISLAND SWIMMING @ KCAC | |
| 318 | Aysa Lolia | 44.79 | 10 | BB Min | A: 42.79 (+2.00s | 4.5%) | Ccat Swimming | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 319 | Claire Shi | 44.82 | 10 | BB Min | A: 42.79 (+2.03s | 4.5%) | Rose Bowl Aquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 320 | Lillian Zhao | 44.82 | 9 | BB Min | A: 42.79 (+2.03s | 4.5%) | Cascadia Swimming | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 321 | Ameena Makhzoumi | 44.82 | 10 | BB Min | A: 42.79 (+2.03s | 4.5%) | Palo Alto Stanford Aquatics | 11/15/2025 | De Anza Cupertino Aquatics CBA+ Meet | |
| 322 | Aria Kumar | 44.84 | 9 | BB Min | A: 42.79 (+2.05s | 4.6%) | Beaverton Area Aquatics Club | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 323 | Maya Fazio | 44.85 | 10 | BB Min | A: 42.79 (+2.06s | 4.6%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 324 | Lucy Ward | 44.88 | 10 | B: 43.99 (+0.89s | 2.0%) | Voltage Aquatics | 12/13/2025 | 2025 Holiday Classic | ||
| 325 | Clover Cole | 44.88 | 10 | BB Min | A: 42.79 (+2.09s | 4.7%) | Kamehameha Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 326 | Zoe Luo | 44.88 | 9 | BB Min | A: 42.79 (+2.09s | 4.7%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 327 | Emma Jun | 44.91 | 9 | BB Min | A: 42.79 (+2.12s | 4.7%) | Bellevue Club Swim Team | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 328 | Addie John | 44.92 | 9 | BB Min | A: 42.79 (+2.13s | 4.7%) | Terrapins Swim Team | 12/05/2025 | Pacific Swim SC C B BB+ Hosted By TERA | |
| 329 | Sydney Hanneman | 44.92 | 9 | BB Min | A: 42.79 (+2.13s | 4.7%) | SlipStream Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 330 | Dillon Zhang | 44.92 | 10 | BB Min | A: 42.79 (+2.13s | 4.7%) | Flatiron Athletic Club | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 331 | Avery Case | 44.93 | 9 | BB Min | A: 42.79 (+2.14s | 4.8%) | North Coast Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 332 | Fazia Cherik | 44.94 | 10 | BB Min | A: 42.79 (+2.15s | 4.8%) | Tiger Aquatics | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 333 | Sloane Shevelenko | 44.95 | 8 | BB Min | A: 42.79 (+2.16s | 4.8%) | The Olympic Club | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 334 | Evie Kwok | 44.96 | 9 | BB Min | A: 42.79 (+2.17s | 4.8%) | California Dolphins Swim Team | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 335 | Jade Holt | 44.97 | 10 | BB Min | A: 42.79 (+2.18s | 4.8%) | Skyline Swim Club | 12/13/2025 | 2025 UTAH Winter Classic | |
| 336 | Madison Pronovost | 45.00 | 10 | BB Min | A: 42.79 (+2.21s | 4.9%) | Legacy Aquatics | 04/25/2026 | LA Spring Kickoff 2026 | |
| 337 | 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 | |
| 338 | Gabriella Magpantay | 45.01 | 9 | BB Min | A: 42.79 (+2.22s | 4.9%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 339 | 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 | |
| 340 | Makai Tanoai | 45.03 | 9 | BB Min | A: 42.79 (+2.24s | 5.0%) | Unattached | 11/08/2025 | BIG ISLAND SWIMMING @ KCAC | |
| 341 | 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+ | |
| 342 | 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 | |
| 343 | 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 | |
| 344 | 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 | |
| 345 | Amelia Horng | 45.08 | 10 | BB Min | A: 42.79 (+2.29s | 5.1%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 346 | Lilia Yamamoto | 45.09 | 10 | BB Min | A: 42.79 (+2.30s | 5.1%) | Splash Aquatics | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 347 | 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 | |
| 348 | Amber Leu | 45.11 | 10 | BB Min | A: 42.79 (+2.32s | 5.1%) | Sacramento Aquatics Club | 11/08/2025 | Folsom Classic 2025 | |
| 349 | 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 | |
| 350 | Elizabeth Ellis | 45.13 | 10 | BB Min | A: 42.79 (+2.34s | 5.2%) | Wave Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
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.