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 | |
|---|---|---|---|---|---|---|---|---|---|
| 601 | Olivia Le | 48.21 | 9 | BB Min | A: 42.79 (+5.42s | 11.2%) | East Bay Bat Rays | 07/10/2026 | Redwood Empire Swim League Championship | |
| 602 | Kailani Silva | 48.22 | 10 | BB Min | A: 42.79 (+5.43s | 11.3%) | Aspen Swim Club | 03/14/2026 | 2026 CO Western Slope League Bronze Meet | |
| 603 | Penny Datko | 48.22 | 10 | BB Min | A: 42.79 (+5.43s | 11.3%) | Fort Collins Area Swim Team | 01/10/2026 | 2026 CO FAST Vs TOPS Vs RIP | |
| 604 | Isha Srinivasan | 48.24 | 10 | BB Min | A: 42.79 (+5.45s | 11.3%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 605 | Karolina Blom | 48.26 | 10 | BB Min | A: 42.79 (+5.47s | 11.3%) | Pacific Coast Marlins | 11/22/2025 | Thankswimming Classic 2025 | |
| 606 | Lincoln O'Gorman | 48.28 | 9 | BB Min | A: 42.79 (+5.49s | 11.4%) | Lake Oswego Swim Club | 11/07/2025 | 2025 McSwimville Invitational | |
| 607 | Florencia Long | 48.30 | 6 | BB Min | A: 42.79 (+5.51s | 11.4%) | Piedmont Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 608 | Elena Shepherd | 48.30 | 10 | BB Min | A: 42.79 (+5.51s | 11.4%) | Albany Aquatic Association | 08/07/2026 | Big Kahuna 2026 | |
| 609 | BasilLee Pippin-Kanai | 48.31 | 9 | BB Min | A: 42.79 (+5.52s | 11.4%) | Warrior Aquatic Club | 02/07/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 610 | Lausanne Doan | 48.31 | 9 | BB Min | A: 42.79 (+5.52s | 11.4%) | Seattle Metropolitan Aquatic C | 02/08/2026 | 2026 PN SMAC February Mini Meet Approved | |
| 611 | Charlee Sill | 48.32 | 9 | BB Min | A: 42.79 (+5.53s | 11.4%) | Bishop Swim Team | 07/31/2026 | 2026 High Country Short Course Championship | |
| 612 | Kathy Li | 48.33 | 10 | BB Min | A: 42.79 (+5.54s | 11.5%) | Maverick Aquatics | 05/03/2026 | 2026 CO Montrose Mini Sprint Meet | |
| 613 | Adelphia Wang | 48.33 | 8 | BB Min | A: 42.79 (+5.54s | 11.5%) | Pleasanton Seahawks | 07/25/2026 | Zone 2 Summer Championships | |
| 614 | Eisley Swarts | 48.33 | 10 | BB Min | A: 42.79 (+5.54s | 11.5%) | North Jeffco Swim Team | 03/13/2026 | Mile High Championship Invitational | |
| 615 | Sky Lorge | 48.34 | 8 | BB Min | A: 42.79 (+5.55s | 11.5%) | Kamehameha Swim Club | 04/18/2026 | 44th Annual Harry Mamizuka Invitational | |
| 616 | Andie Webb | 48.36 | 10 | BB Min | A: 42.79 (+5.57s | 11.5%) | Socal Aquatics Association | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 617 | Deija Goncalves de Jesus | 48.37 | 10 | BB Min | A: 42.79 (+5.58s | 11.5%) | Life Time Fitness Utah Swim Te | 10/24/2025 | SSC Witchy Waters 2025 | |
| 618 | Iris Wang | 48.37 | 9 | BB Min | A: 42.79 (+5.58s | 11.5%) | Santa Clara Swim Club | 01/16/2026 | 2026 Brian Malick Memorial Z1S Championships | |
| 619 | Clara Cederholm | 48.39 | 9 | BB Min | A: 42.79 (+5.60s | 11.6%) | Olympus Aquatics | 02/21/2025 | 2025 Olympus Aquatics Last Chance | |
| 620 | Lyra Mertens-Hall | 48.40 | 10 | BB Min | A: 42.79 (+5.61s | 11.6%) | Multnomah Athletic Club | 05/09/2026 | 2026 Spring Sprinter Invitational | |
| 621 | Caroline Mitchell | 48.41 | 9 | BB Min | A: 42.79 (+5.62s | 11.6%) | COSA Swimming | 07/18/2026 | 2026 CO AP Rocky Mountain State Games | |
| 622 | Brynn Morley | 48.41 | 10 | BB Min | A: 42.79 (+5.62s | 11.6%) | Rocky Ford Blue Marlins | 07/11/2026 | 2026 CO Canon City Swim Meet | |
| 623 | Chloe Chakra | 48.42 | 10 | BB Min | A: 42.79 (+5.63s | 11.6%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 624 | Lillian Edeli | 48.43 | 10 | BB Min | A: 42.79 (+5.64s | 11.6%) | YMCA Presidio Aquatics | 03/07/2026 | Napa Valley Swim Team Swimming Towards Spring | |
| 625 | Alessandra Solis | 48.43 | 5 | BB Min | A: 42.79 (+5.64s | 11.6%) | Piedmont Swim Team | 03/28/2026 | Piedmont Swim Team C B BB+ | |
| 626 | Amalia Bosa | 48.44 | 10 | BB Min | A: 42.79 (+5.65s | 11.7%) | Lake Oswego Swim Club | 12/13/2025 | 2025 OR HEAT Winter Invitational | |
| 627 | Thea Curry | 48.47 | 8 | BB Min | A: 42.79 (+5.68s | 11.7%) | Cascade Swim Club | 02/01/2026 | 2026 PN CSC February Mini Meet Approved | |
| 628 | Kaisha Mitchell | 48.47 | 10 | BB Min | A: 42.79 (+5.68s | 11.7%) | Apex | 01/02/2026 | 2026 CST Shark Chase Invitational | |
| 629 | Elliotte Gibson | 48.47 | 9 | BB Min | A: 42.79 (+5.68s | 11.7%) | East Bay Bat Rays | 05/17/2026 | Montclair 14 Under Short Course Pentathlon | |
| 630 | Lucca Otero | 48.48 | 9 | BB Min | A: 42.79 (+5.69s | 11.7%) | Excel Aquatics | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 631 | Esther Wei | 48.48 | 9 | BB Min | A: 42.79 (+5.69s | 11.7%) | Bellevue Club Swim Team | 03/06/2026 | 2026 BBST Seize The Day Invitational | |
| 632 | Ellie Yin | 48.48 | 9 | BB Min | A: 42.79 (+5.69s | 11.7%) | Chinook Aquatic Club | 06/19/2026 | 2026 PN SRST Summer Invitational Approved | |
| 633 | Hallie Carollo | 48.49 | 10 | BB Min | A: 42.79 (+5.70s | 11.8%) | Eastmont | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 634 | Allie Mayle | 48.49 | 10 | BB Min | A: 42.79 (+5.70s | 11.8%) | Mavericks | 06/05/2026 | 2026 CO Gunnison Invitational | |
| 635 | Phoebe Peixoto | 48.49 | 10 | BB Min | A: 42.79 (+5.70s | 11.8%) | Team Eugene Aquatics | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 636 | Audrey Kelty | 48.49 | 9 | BB Min | A: 42.79 (+5.70s | 11.8%) | Portland Aquatic Club | 04/24/2026 | 2026 Celebrate PAC Team Intrasquad Meet | |
| 637 | Yi-Yi Yan | 48.50 | 10 | BB Min | A: 42.79 (+5.71s | 11.8%) | Canyons Aquatic Club | 12/06/2025 | 2025 CA CANY Candy Cane | |
| 638 | Jane Ackerman | 48.51 | 10 | BB Min | A: 42.79 (+5.72s | 11.8%) | COSA Swimming | 02/13/2026 | 2026 CO Valentine Open | |
| 639 | Frances Turner | 48.54 | 10 | BB Min | A: 42.79 (+5.75s | 11.8%) | DeAnza Cupertino Aquatics | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 640 | Naya Williams | 48.55 | 8 | BB Min | A: 42.79 (+5.76s | 11.9%) | South Bay Aquatics | 07/10/2026 | 2026 SI SBA All Ages Last Chance Meet | |
| 641 | Mila Monge | 48.55 | 9 | BB Min | A: 42.79 (+5.76s | 11.9%) | Livermore AquaCowboys | 09/27/2025 | PC LAC C B BB | |
| 642 | Aanaya Mondal | 48.56 | 10 | BB Min | A: 42.79 (+5.77s | 11.9%) | Pro Swimming | 12/06/2025 | 2025 PN Fall Divisionals, Division 3 WAVE | |
| 643 | Ila Knackstedt | 48.56 | 10 | BB Min | A: 42.79 (+5.77s | 11.9%) | Swim Lake City Legends | 11/21/2025 | 2025 MAC Thanksgiving Invitational | |
| 644 | Everly Hsueh | 48.56 | 10 | BB Min | A: 42.79 (+5.77s | 11.9%) | Milpitas Aquatic Club | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 645 | Bailey Aguilar-Marin | 48.57 | 9 | BB Min | A: 42.79 (+5.78s | 11.9%) | Clovis Swim Club | 01/10/2026 | 2026 Clovis Swim Club Winter Open | |
| 646 | Maddy Walker | 48.58 | 10 | BB Min | A: 42.79 (+5.79s | 11.9%) | Spokane Sea Serpents | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 647 | Claire Garrigues | 48.58 | 9 | BB Min | A: 42.79 (+5.79s | 11.9%) | Piedmont Swim Team | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 648 | Anika Parson | 48.58 | 10 | BB Min | A: 42.79 (+5.79s | 11.9%) | Pacific Dragons Swim Team | 12/06/2025 | 2025 PN Fall Divisionals, Division 1 OCA | |
| 649 | Klara Koesel | 48.61 | 10 | BB Min | A: 42.79 (+5.82s | 12.0%) | Bainbridge Island Swim Club | 01/31/2026 | 2026 PN BISC Bluefin Invitational | |
| 650 | Ella Lerro | 48.62 | 8 | BB Min | A: 42.79 (+5.83s | 12.0%) | Aspire Aquatics of Colorado | 03/07/2025 | 2025 CO CSI Silver State Championships | |
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.