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 | |
|---|---|---|---|---|---|---|---|---|---|
| 501 | Amy Guo | 49.04 | 9 | BB Min | A: 43.59 (+5.45s | 11.1%) | Life Time Oregon Swim Team | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 502 | Jade Hartley | 49.04 | 8 | BB Min | A: 43.59 (+5.45s | 11.1%) | Coeur D\\\\\\'alene Area Swim Team | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 503 | Sienna Schenk | 49.05 | 10 | BB Min | A: 43.59 (+5.46s | 11.1%) | Boulder City Henderson Swim Te | 07/24/2025 | 2025 CA SCS Summer A G Champs CANY | |
| 504 | Allison Wu | 49.06 | 10 | BB Min | A: 43.59 (+5.47s | 11.1%) | Aquawolves Swimming | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 505 | Alexandra Czuczman | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | Aquawolves Swimming | 04/25/2025 | 2025 CO Steve Drozda LC Shotgun | |
| 506 | Stella Deng | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | West Coast Aquatics | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 507 | Kaylee Zhang | 49.08 | 9 | BB Min | A: 43.59 (+5.49s | 11.2%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 508 | Sloane Korkuch | 49.12 | 10 | BB Min | A: 43.59 (+5.53s | 11.3%) | Wind N Sea Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 509 | Samvida Tengshe | 49.12 | 10 | BB Min | A: 43.59 (+5.53s | 11.3%) | Tualatin Hills Swim Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 510 | Amelia Balcer | 49.14 | 10 | BB Min | A: 43.59 (+5.55s | 11.3%) | Bend Swim Club | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 511 | Ella Sun | 49.16 | 7 | BB Min | A: 43.59 (+5.57s | 11.3%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 512 | McKenna Lee | 49.18 | 10 | BB Min | A: 43.59 (+5.59s | 11.4%) | SlipStream Aquatics | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 513 | Eloise Duncan | 49.21 | 10 | BB Min | A: 43.59 (+5.62s | 11.4%) | King Aquatic Club | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
| 514 | Eliza Cartwright | 49.22 | 10 | BB Min | A: 43.59 (+5.63s | 11.4%) | Albany Aquatic Association | 05/02/2025 | 2025 AAA May LC Invitational | |
| 515 | Kennedy Schull | 49.24 | 8 | BB Min | A: 43.59 (+5.65s | 11.5%) | Lake Oswego Swim Club | 04/25/2026 | GACC Spring Invitational | |
| 516 | Avery Peck | 49.25 | 10 | BB Min | A: 43.59 (+5.66s | 11.5%) | Terrapins Swim Team | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 517 | Bella Qiao | 49.26 | 8 | BB Min | A: 43.59 (+5.67s | 11.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 518 | Clover Belling | 49.26 | 10 | BB Min | A: 43.59 (+5.67s | 11.5%) | Legacy Aquatics | 11/01/2025 | Oregon City Fall Open 2025 | |
| 519 | Zoe Uchimoto | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Maui Dolphins Swim Club | 04/19/2026 | 2026 MAGSA LCM A1 Meet | |
| 520 | Evelyn Maxey | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Merced Skimmers Swim Team | 04/26/2025 | Merced Skimmers Long Course Meet | |
| 521 | Riley Luong | 49.27 | 9 | BB Min | A: 43.59 (+5.68s | 11.5%) | Fog City Hammerheads | 04/19/2025 | Alto Spring Jam Meet | |
| 522 | Pearl Spaugy | 49.27 | 9 | BB Min | A: 43.59 (+5.68s | 11.5%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 523 | Victoria Neary | 49.27 | 10 | BB Min | A: 43.59 (+5.68s | 11.5%) | Aces Swim Club | 04/12/2025 | 2025 CO TOPS Suburban League Pentathlon | |
| 524 | Charlee Sill | 49.28 | 9 | BB Min | A: 43.59 (+5.69s | 11.5%) | Bishop Swim Team | 07/12/2025 | 2025 Silver State Championships | |
| 525 | Lia Serkovich | 49.29 | 7 | BB Min | A: 43.59 (+5.70s | 11.6%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 526 | Emilia Chang | 49.32 | 10 | BB Min | A: 43.59 (+5.73s | 11.6%) | Burlingame Aquatics | 04/19/2025 | Alto Spring Jam Meet | |
| 527 | Katelyn Pederson | 49.34 | 10 | BB Min | A: 43.59 (+5.75s | 11.7%) | Bellingham Bay Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 528 | Natalie Camfferman | 49.35 | 10 | BB Min | A: 43.59 (+5.76s | 11.7%) | Castle Rock Swimming | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 529 | Isabel Bolt | 49.36 | 9 | BB Min | A: 43.59 (+5.77s | 11.7%) | Beaverton Area Aquatics Club | 05/01/2026 | 2026 THSC Spring Invite | |
| 530 | Adalyn Peng | 49.36 | 9 | BB Min | A: 43.59 (+5.77s | 11.7%) | Monterey Bay Swim Club | 06/21/2025 | 2025 FDST June A B Modified LC Invitational | |
| 531 | Rachel Ellis | 49.37 | 9 | BB Min | A: 43.59 (+5.78s | 11.7%) | South Valley Makos | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 532 | Camille Thorp | 49.37 | 9 | BB Min | A: 43.59 (+5.78s | 11.7%) | Rocky Mountain Rapids | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 533 | Mila Monroe | 49.38 | 9 | BB Min | A: 43.59 (+5.79s | 11.7%) | Boulder City Henderson Swim Te | 03/30/2025 | Sand Vs BCH LCM Dual 2025 | |
| 534 | Adar Van Horn | 49.38 | 8 | BB Min | A: 43.59 (+5.79s | 11.7%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 535 | Vail Christianson | 49.39 | 10 | BB Min | A: 43.59 (+5.80s | 11.7%) | Aspire Aquatics of Colorado | 06/27/2025 | 2025 CO Zone 2 VMAC Meet | |
| 536 | Kate Lindhaus | 49.40 | 9 | BB Min | A: 43.59 (+5.81s | 11.8%) | Tualatin Hills Swim Club | 07/05/2025 | 2025 OR CRST Summer Blast 3 | |
| 537 | Molly Hall | 49.41 | 10 | BB Min | A: 43.59 (+5.82s | 11.8%) | Front Range Barracudas | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 538 | Madhuri Mukhram | 49.41 | 10 | BB Min | A: 43.59 (+5.82s | 11.8%) | Bellingham Bay Swim Team | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 539 | Callie Gould | 49.42 | 10 | BB Min | A: 43.59 (+5.83s | 11.8%) | Pikes Peak Athletics | 05/30/2025 | 2025 CO Barracuda Summer Sizzler Invite | |
| 540 | Stella Evans | 49.43 | 10 | BB Min | A: 43.59 (+5.84s | 11.8%) | College Area Swim Team | 04/24/2026 | 2026 SI PS ABB Meet Group A | |
| 541 | Quinn Hughes | 49.44 | 10 | BB Min | A: 43.59 (+5.85s | 11.8%) | Four Corners Aquatic Team | 06/19/2025 | 2025 CO Grand Junction Invitational | |
| 542 | Lillian Zhao | 49.45 | 9 | BB Min | A: 43.59 (+5.86s | 11.9%) | Cascadia Swimming | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 543 | Avery Kotlarczyk | 49.45 | 10 | BB Min | A: 43.59 (+5.86s | 11.9%) | Flatiron Athletic Club | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 544 | Olive Gwynn | 49.47 | 10 | BB Min | A: 43.59 (+5.88s | 11.9%) | Hilltop Aquatic Swim Team | 05/08/2025 | 2025 HAST Janet Oles LC Classic | |
| 545 | Emery Patterson | 49.48 | 10 | BB Min | A: 43.59 (+5.89s | 11.9%) | Beaverton Area Aquatics Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 546 | Adalyn King | 49.49 | 10 | BB Min | A: 43.59 (+5.90s | 11.9%) | Fort Collins Area Swim Team | 04/12/2025 | Cuda V FAST | |
| 547 | Reese Webley | 49.51 | 10 | BB Min | A: 43.59 (+5.92s | 12.0%) | Chinook Aquatic Club | 05/02/2025 | 2025 PN BC May Flowers | |
| 548 | Amelia Athanassious | 49.51 | 10 | BB Min | A: 43.59 (+5.92s | 12.0%) | Neptune Swimming | 07/11/2025 | 2025 Age Group Championships | |
| 549 | Emma Roberts | 49.52 | 10 | BB Min | A: 43.59 (+5.93s | 12.0%) | Life Time Colorado Swim Club | 05/30/2025 | 2025 CO Barracuda Summer Sizzler Invite | |
| 550 | Amanda Wu | 49.52 | 9 | BB Min | A: 43.59 (+5.93s | 12.0%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
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.