Western Zone Zone Girls 10 & under - 50 M Back
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 | Emery Patterson | 47.52 | 10 | BB Min | A: 43.59 (+3.93s | 8.3%) | Beaverton Area Aquatics Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 602 | Zoe Jarc | 47.53 | 10 | BB Min | A: 43.59 (+3.94s | 8.3%) | Burlingame Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 603 | Santana Velasquez | 47.55 | 10 | BB Min | A: 43.59 (+3.96s | 8.3%) | Las Animas Trofins | 06/26/2026 | 2026 CO RF Blue Marlins Invitational | |
| 604 | Hadley Hausel | 47.57 | 10 | BB Min | A: 43.59 (+3.98s | 8.4%) | Denver Swim Academy | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 605 | Felix Tobias | 47.58 | 10 | BB Min | A: 43.59 (+3.99s | 8.4%) | Heartland Swim Assoc | 05/23/2026 | 2026 SI HSA A All Ages NTS May 23 24 | |
| 606 | Sofia Yu | 47.58 | 9 | BB Min | A: 43.59 (+3.99s | 8.4%) | Pacific Dragons Swim Team | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 607 | Naiya Keys | 47.58 | 10 | BB Min | A: 43.59 (+3.99s | 8.4%) | Baker YMCA Swim Team | 07/24/2026 | 2026 IES LC CHAMPIONSHIPS | |
| 608 | Grace Baker | 47.61 | 8 | BB Min | A: 43.59 (+4.02s | 8.4%) | Univ. of Denver Hilltoppers | 04/24/2026 | 2026 CO Arena Catch Me If You Can | |
| 609 | Sienna Reckhow | 47.62 | 10 | BB Min | A: 43.59 (+4.03s | 8.5%) | Cascade Swim Club | 06/19/2026 | 2026 IE VS Starlight Open (USAS) | |
| 610 | Shirley Bin | 47.63 | 10 | BB Min | A: 43.59 (+4.04s | 8.5%) | Milpitas Aquatic Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 611 | Olivia Chen | 47.63 | 9 | BB Min | A: 43.59 (+4.04s | 8.5%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 612 | Vera Asadamongkol | 47.66 | 10 | BB Min | A: 43.59 (+4.07s | 8.5%) | San Ramon Valley Aquatics | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 613 | Gabriella Flores | 47.70 | 10 | BB Min | A: 43.59 (+4.11s | 8.6%) | South Bay Aquatics | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 614 | Joey Pendt | 47.71 | 10 | BB Min | A: 43.59 (+4.12s | 8.6%) | Stingray Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 615 | Lucia Tang | 47.71 | 9 | BB Min | A: 43.59 (+4.12s | 8.6%) | Sunnyvale Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 616 | Francesca Mastrorocco | 47.74 | 9 | BB Min | A: 43.59 (+4.15s | 8.7%) | Swim Lake City Legends | 06/06/2025 | Speed Lake City 2025 | |
| 617 | Jane Cheng | 47.75 | 10 | BB Min | A: 43.59 (+4.16s | 8.7%) | Santa Clara Swim Club | 05/22/2026 | 2026 Zone 1 South Firecracker 400 | |
| 618 | Reese Aguayo | 47.76 | 9 | BB Min | A: 43.59 (+4.17s | 8.7%) | Pikes Peak Athletics | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 619 | Penelope Arias | 47.77 | 9 | BB Min | A: 43.59 (+4.18s | 8.8%) | Seattle Metropolitan Aquatic C | 05/28/2026 | 2026 IE VS Apple Capital | |
| 620 | Ruiqi Hu | 47.77 | 10 | BB Min | A: 43.59 (+4.18s | 8.8%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 621 | Kristina Velichko | 47.79 | 9 | BB Min | A: 43.59 (+4.20s | 8.8%) | Seattle Metropolitan Aquatic C | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 622 | Camille Thorp | 47.80 | 9 | BB Min | A: 43.59 (+4.21s | 8.8%) | Rocky Mountain Rapids | 07/24/2026 | 2026 CO Age Group LCM State Championships | |
| 623 | Ailany Zhan | 47.81 | 9 | BB Min | A: 43.59 (+4.22s | 8.8%) | Irvine Novaquatics | 07/23/2026 | 2026 CA SCS RAA Summer A G Champs Copied | |
| 624 | Arden Moura | 47.82 | 9 | BB Min | A: 43.59 (+4.23s | 8.8%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 625 | Andradige Silva | 47.83 | 8 | BB Min | A: 43.59 (+4.24s | 8.9%) | Beaverton Area Aquatics Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 626 | Sloane Howard | 47.83 | 9 | BB Min | A: 43.59 (+4.24s | 8.9%) | Palo Alto Stanford Aquatics | 05/29/2026 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 627 | Elizaveta Klimova | 47.83 | 10 | BB Min | A: 43.59 (+4.24s | 8.9%) | Olympic Cascade Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 628 | Hallie Hess | 47.87 | 10 | BB Min | A: 43.59 (+4.28s | 8.9%) | Pacific Swim | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 629 | Piper Carlson | 47.88 | 10 | BB Min | A: 43.59 (+4.29s | 9.0%) | Coeur D\\\\\\'alene Area Swim Team | 04/25/2026 | 2026 SWAT Spring Fling | |
| 630 | Adar Van Horn | 47.88 | 8 | BB Min | A: 43.59 (+4.29s | 9.0%) | Bellevue Club Swim Team | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 631 | Siena Burrell | 47.88 | 10 | BB Min | A: 43.59 (+4.29s | 9.0%) | Swim Lake City Legends | 07/17/2025 | 2025 UTAGS LC Championships | |
| 632 | Arrietty Shieh | 47.91 | 10 | BB Min | A: 43.59 (+4.32s | 9.0%) | Tualatin Hills Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 633 | Paige Lin | 47.91 | 8 | BB Min | A: 43.59 (+4.32s | 9.0%) | Otter Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 634 | Emma Nakano | 47.91 | 10 | BB Min | A: 43.59 (+4.32s | 9.0%) | Olympic Cascade Aquatics | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 635 | Kennedy Nelson | 47.95 | 8 | BB Min | A: 43.59 (+4.36s | 9.1%) | Wasatch Front Fish Market | 07/17/2025 | 2025 UTAGS LC Championships | |
| 636 | Kyla Parnell | 47.95 | 10 | BB Min | A: 43.59 (+4.36s | 9.1%) | Pacific Swim | 06/19/2026 | 2026 SI Splash And Dash | |
| 637 | Sara Silva | 47.97 | 10 | BB Min | A: 43.59 (+4.38s | 9.1%) | Star | 06/05/2026 | 2026 COSA Long Couse Open | |
| 638 | Genevieve Fischer | 47.97 | 10 | BB Min | A: 43.59 (+4.38s | 9.1%) | Burlingame Aquatics | 06/20/2026 | Alto Summer Swelter | |
| 639 | Ava Gao | 47.99 | 10 | BB Min | A: 43.59 (+4.40s | 9.2%) | Unattached | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 640 | Cassandra Dubinsky | 47.99 | 9 | BB Min | A: 43.59 (+4.40s | 9.2%) | Kamehameha Swim Club | 07/16/2026 | 2026 HISI LCM Championships | |
| 641 | Noelle Brown | 48.00 | 10 | BB Min | A: 43.59 (+4.41s | 9.2%) | Foothills Swim Team | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 642 | Sofia Beglyarova | 48.00 | 9 | BB Min | A: 43.59 (+4.41s | 9.2%) | Olympic Cascade Aquatics | 06/06/2026 | 2026 PN VAST Summer Sprint Dist Approved | |
| 643 | Clara Davidson | 48.01 | 9 | BB Min | A: 43.59 (+4.42s | 9.2%) | Mighty Marlins Swim Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 644 | Fiona Walsh | 48.04 | 10 | BB Min | A: 43.59 (+4.45s | 9.3%) | Denver Triton Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 645 | Allie Mayle | 48.04 | 10 | BB Min | A: 43.59 (+4.45s | 9.3%) | Maverick Aquatics | 06/18/2026 | 2026 CO Grand Junction Invitational | |
| 646 | Sloane Shevelenko | 48.07 | 9 | BB Min | A: 43.59 (+4.48s | 9.3%) | Unattached | 07/23/2026 | 2026 CA SCS Summer A G Champs @ BREA | |
| 647 | Emma Jun | 48.07 | 9 | BB Min | A: 43.59 (+4.48s | 9.3%) | Bellevue Club Swim Team | 06/26/2026 | 2026 PN SMAC Summer Classic Invite Approved | |
| 648 | Cali Martinez | 48.07 | 9 | BB Min | A: 43.59 (+4.48s | 9.3%) | Nampa Swim Team | 06/07/2025 | Summer Classics 2025 | |
| 649 | Kalani Scott | 48.09 | 9 | BB Min | A: 43.59 (+4.50s | 9.4%) | Sparks Piranhas Swim Team | 06/19/2026 | Reno Aquatic Club Gamble | |
| 650 | Emma Miyamoto | 48.11 | 10 | BB Min | A: 43.59 (+4.52s | 9.4%) | Aloha Aquatics Association | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
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.