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 | Amber Leu | 45.11 | 10 | BB Min | A: 42.79 (+2.32s | 5.1%) | Sacramento Aquatics Club | 11/08/2025 | Folsom Classic 2025 | |
| 302 | Sein Moon | 45.12 | 9 | BB Min | A: 42.79 (+2.33s | 5.2%) | Pleasanton Seahawks | 07/25/2026 | Zone 2 Summer Championships | |
| 303 | 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 | |
| 304 | 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 | |
| 305 | 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 | |
| 306 | 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 | |
| 307 | Sylvia Li | 45.17 | 10 | BB Min | A: 42.79 (+2.38s | 5.3%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 308 | 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+ | |
| 309 | 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+ | |
| 310 | 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 | |
| 311 | Olivia Espina | 45.23 | 10 | BB Min | A: 42.79 (+2.44s | 5.4%) | Dart Swimming | 07/25/2026 | 2026 REAL Championships | |
| 312 | 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 | |
| 313 | 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 | |
| 314 | Raegan Berry | 45.31 | 10 | BB Min | A: 42.79 (+2.52s | 5.6%) | Flatiron Athletic Club | 03/13/2026 | Mile High Championship Invitational | |
| 315 | Avisha Ghosh Chowdhury | 45.33 | 10 | BB Min | A: 42.79 (+2.54s | 5.6%) | Diablo Aquatics | 07/25/2026 | Zone 2 Summer Championships | |
| 316 | Tiffany Xiao | 45.33 | 10 | BB Min | A: 42.79 (+2.54s | 5.6%) | Orinda Aquatics | 07/25/2026 | Zone 2 Summer Championships | |
| 317 | 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 | |
| 318 | Jaclyn Dixon | 45.34 | 10 | BB Min | A: 42.79 (+2.55s | 5.6%) | Unattached | 01/17/2026 | 2026 PN SMAC Winter Invitational Approved | |
| 319 | Lilliana Cox | 45.36 | 10 | BB Min | A: 42.79 (+2.57s | 5.7%) | Swim Kauai Aquatics | 06/13/2026 | SKA Home Meet 61326 | |
| 320 | 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 | |
| 321 | 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 | |
| 322 | 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 | |
| 323 | 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 | |
| 324 | 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 | |
| 325 | Piper Brown | 45.45 | 10 | BB Min | A: 42.79 (+2.66s | 5.9%) | Dart Swimming | 02/13/2026 | 2026 Neptune Swimming Invitational | |
| 326 | 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 | |
| 327 | 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 | |
| 328 | Myra Singh | 45.47 | 10 | BB Min | A: 42.79 (+2.68s | 5.9%) | Stingray Swim Team | 01/24/2026 | 2026 PN IST January Invitational Approved | |
| 329 | McKenzie Phillips | 45.48 | 9 | BB Min | A: 42.79 (+2.69s | 5.9%) | Denver Swim Academy | 03/06/2026 | 2026 CO 14 U Silver State | |
| 330 | Mawdsley-Mae Vincent | 45.50 | 10 | BB Min | A: 42.79 (+2.71s | 6.0%) | Warrior Aquatic Club | 02/07/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 331 | Vivian Kalogrides | 45.50 | 9 | BB Min | A: 42.79 (+2.71s | 6.0%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 332 | Jennifer Zhao | 45.50 | 10 | BB Min | A: 42.79 (+2.71s | 6.0%) | Palo Alto Stanford Aquatics | 07/26/2026 | 2026 PASA Summer Palooza | |
| 333 | Suri Oliver | 45.51 | 10 | BB Min | A: 42.79 (+2.72s | 6.0%) | Montclair Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 334 | Cecilia Lin | 45.52 | 10 | BB Min | A: 42.79 (+2.73s | 6.0%) | Excel Aquatics | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 335 | Jane Kelly | 45.54 | 10 | BB Min | A: 42.79 (+2.75s | 6.0%) | Cali Piranha Swim Team | 04/11/2026 | 2026 SI FAST BC All Ages | |
| 336 | Genevieve Court | 45.58 | 9 | BB Min | A: 42.79 (+2.79s | 6.1%) | SlipStream Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 337 | Noelle Berkland | 45.59 | 10 | BB Min | A: 42.79 (+2.80s | 6.1%) | Park City Swimming | 12/13/2025 | 2025 UTAH Winter Classic | |
| 338 | Emma Guo | 45.59 | 9 | BB Min | A: 42.79 (+2.80s | 6.1%) | Otter Swim Club | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 339 | Maggie Qi | 45.59 | 10 | BB Min | A: 42.79 (+2.80s | 6.1%) | Rose Bowl Aquatics | 03/13/2025 | 2025 SCS Spring Age Group Champs @ Armada | |
| 340 | Sarah He | 45.60 | 10 | BB Min | A: 42.79 (+2.81s | 6.2%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 341 | Isabella Tsui | 45.60 | 8 | BB Min | A: 42.79 (+2.81s | 6.2%) | Pacific Dragons Swim Team | 02/27/2026 | 2026 PN February AGI, Division 2 Approved | |
| 342 | Adeline Lin | 45.63 | 9 | BB Min | A: 42.79 (+2.84s | 6.2%) | Bayside Branch YMCA | 01/17/2026 | 2026 NE KCY SENECY Winter Carnival | |
| 343 | Evelyn Zhou | 45.65 | 10 | BB Min | A: 42.79 (+2.86s | 6.3%) | Palo Alto Stanford Aquatics | 07/26/2026 | 2026 PASA Summer Palooza | |
| 344 | Julianna Mazeika | 45.67 | 10 | BB Min | A: 42.79 (+2.88s | 6.3%) | Mission Viejo Nadadores | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 345 | Chloe Lee | 45.67 | 10 | BB Min | A: 42.79 (+2.88s | 6.3%) | SOL Swim Team | 08/08/2026 | 2026 SI CAST All Ages August Wrap Up Meet C | |
| 346 | Mikka Lusanta | 45.68 | 10 | BB Min | A: 42.79 (+2.89s | 6.3%) | Sparks Piranhas Swim Team | 07/31/2026 | 2026 High Country Short Course Championship | |
| 347 | Aria Jaggi | 45.69 | 10 | BB Min | A: 42.79 (+2.90s | 6.3%) | Jbarracudas Swim Team | 12/05/2025 | 2025 SI JBST Wag Max Meet | |
| 348 | Jadesolaoluwa Abdul | 45.69 | 9 | BB Min | A: 42.79 (+2.90s | 6.3%) | Irvine Novaquatics | 12/12/2025 | 2025 CA SCS SCAT WAG | |
| 349 | Evelyn Mosendz | 45.72 | 8 | BB Min | A: 42.79 (+2.93s | 6.4%) | Santa Clara Swim Club | 07/25/2026 | 2026 DACA SC CBA Meet | |
| 350 | Nysa Banerjee | 45.72 | 10 | B: 43.99 (+1.73s | 3.8%) | 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.