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 | |
|---|---|---|---|---|---|---|---|---|---|
| 801 | Kayla Aoki | 49.74 | 10 | B Min | BB: 49.69 (+0.05s | 0.1%) | Maui Swim Club | 05/23/2026 | 50th Annual Coach Soichi Sakamoto Invitationa | |
| 802 | Cheryl Zong | 49.74 | 10 | B Min | BB: 49.69 (+0.05s | 0.1%) | Pro Swimming | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 803 | Grace Stephenson | 49.74 | 10 | B Min | BB: 49.69 (+0.05s | 0.1%) | Mission Valley YMCA | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 804 | Emily Cheung | 49.75 | 10 | B Min | BB: 49.69 (+0.06s | 0.1%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 805 | Arya Nicoara | 49.77 | 9 | B Min | BB: 49.69 (+0.08s | 0.2%) | King Aquatic Club | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 806 | Clara Raicea | 49.77 | 8 | B Min | BB: 49.69 (+0.08s | 0.2%) | Patriot Swim Club | 07/23/2026 | 2026 CA SCS Summer A G Champs | |
| 807 | Emerson Weaver | 49.78 | 10 | B Min | BB: 49.69 (+0.09s | 0.2%) | Evergreen Hurricanes | 06/05/2026 | 2026 CO NJ Summer Solstice Invite | |
| 808 | Alivia Conti | 49.82 | 8 | B Min | BB: 49.69 (+0.13s | 0.3%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 809 | Lucy Dwelley | 49.82 | 9 | B Min | BB: 49.69 (+0.13s | 0.3%) | Terrapins Swim Team | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 810 | Laila Azarbal | 49.82 | 10 | B Min | BB: 49.69 (+0.13s | 0.3%) | Lake Oswego Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 811 | Florence Bradley | 49.83 | 8 | B Min | BB: 49.69 (+0.14s | 0.3%) | Tornadoes Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 812 | Isabella Atkins | 49.83 | 10 | B Min | BB: 49.69 (+0.14s | 0.3%) | Ramona Swim Team | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 813 | Aabha Nargund | 49.84 | 10 | B Min | BB: 49.69 (+0.15s | 0.3%) | Wave Aquatics | 07/09/2026 | 2026 PN Chinook Seattle Age Group Open Appro | |
| 814 | Youzi Liu | 49.86 | 10 | B Min | BB: 49.69 (+0.17s | 0.3%) | Sunnyvale Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 815 | Layla Glass | 49.86 | 10 | B Min | BB: 49.69 (+0.17s | 0.3%) | College Area Swim Team | 05/23/2026 | 2026 SI HSA 2 All Ages NTS May 23 24 | |
| 816 | Catherine Johnson | 49.86 | 10 | B Min | BB: 49.69 (+0.17s | 0.3%) | Bozeman Barracudas Swim Team | 07/10/2026 | 2026 MT HLST Last Chance Invitational | |
| 817 | Chloe Champion | 49.89 | 10 | B Min | BB: 49.69 (+0.20s | 0.4%) | Beaverton Area Aquatics Club | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 818 | Tatiana Chorman | 49.89 | 10 | B Min | BB: 49.69 (+0.20s | 0.4%) | Heartland Swim Assoc | 05/23/2026 | 2026 SI HSA A All Ages NTS May 23 24 | |
| 819 | Madelyn McNellis | 49.90 | 9 | B Min | BB: 49.69 (+0.21s | 0.4%) | Missoula YMCA Swim Team | 07/10/2026 | 2026 MT HLST Last Chance Invitational | |
| 820 | Madison Sublett | 49.91 | 10 | B Min | BB: 49.69 (+0.22s | 0.4%) | Pacific Swim | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 821 | Kinsley Cao | 49.92 | 9 | B Min | BB: 49.69 (+0.23s | 0.5%) | Stingray Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 822 | Sindy Liu | 49.92 | 9 | B Min | BB: 49.69 (+0.23s | 0.5%) | Wave Aquatics | 07/23/2026 | 2026 PN LC 12 U Championships Approved | |
| 823 | Marlowe Hubber | 49.95 | 10 | B Min | BB: 49.69 (+0.26s | 0.5%) | Portland Aquatic Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 824 | Kaylee Miwa | 49.95 | 9 | B Min | BB: 49.69 (+0.26s | 0.5%) | Splash Aquatics | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 825 | Claire Hayward | 49.96 | 10 | B Min | BB: 49.69 (+0.27s | 0.5%) | Lake Oswego Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 826 | Ada Pinkelman Keiser | 49.97 | 9 | B Min | BB: 49.69 (+0.28s | 0.6%) | Longmont Swim Club | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 827 | Emily Johnson | 49.97 | 10 | B Min | BB: 49.69 (+0.28s | 0.6%) | Puget Sound Swim Club | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 828 | Amy Qian | 49.98 | 9 | B Min | BB: 49.69 (+0.29s | 0.6%) | Santa Clara Swim Club | 05/25/2024 | SCSC Pacific Swimming Long Course Intrasquad | |
| 829 | Ella Kim | 49.98 | 10 | B Min | BB: 49.69 (+0.29s | 0.6%) | Lake Oswego Swim Club | 05/22/2026 | 2026 THSC Memorial Weekend Meet | |
| 830 | Ruby Zalewski | 49.99 | 9 | B Min | BB: 49.69 (+0.30s | 0.6%) | Univ. of Denver Hilltoppers | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 831 | Tayren Mahaulu | 49.99 | 9 | B Min | BB: 49.69 (+0.30s | 0.6%) | Warrior Aquatic Club | 06/06/2026 | BIG ISLAND SWIMMING @ KSH | |
| 832 | Harriet Martinson | 50.02 | 8 | B Min | BB: 49.69 (+0.33s | 0.7%) | Seattle Metropolitan Aquatic C | 04/24/2026 | 2026 PN SMAC Spring Showers LC Challenge | |
| 833 | Olivia Rickman | 50.02 | 9 | B Min | BB: 49.69 (+0.33s | 0.7%) | Silver Falls Rapids YMCA | 05/16/2026 | 2026 TEAM Showdown | |
| 834 | Lucie Neilsen | 50.05 | 9 | B Min | BB: 49.69 (+0.36s | 0.7%) | Lehi Aquatics | 06/06/2025 | Speed Lake City 2025 | |
| 835 | Mina Zhang | 50.05 | 8 | B Min | BB: 49.69 (+0.36s | 0.7%) | Tualatin Hills Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 836 | Liya James | 50.05 | 10 | B Min | BB: 49.69 (+0.36s | 0.7%) | Flatiron Athletic Club | 06/26/2026 | 2026 CO Zone 2 District Meet AAC | |
| 837 | Dalia Toledo | 50.06 | 10 | B Min | BB: 49.69 (+0.37s | 0.7%) | Multnomah Athletic Club | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 838 | Chloe Wang | 50.07 | 10 | B Min | BB: 49.69 (+0.38s | 0.8%) | Pleasanton Seahawks | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 839 | Romy Hale | 50.07 | 9 | B Min | BB: 49.69 (+0.38s | 0.8%) | Skyline Swim Club | 06/18/2025 | 2025 UT CHAT INVITATIONAL | |
| 840 | Daniela Arrobo | 50.07 | 9 | B Min | BB: 49.69 (+0.38s | 0.8%) | Hillsboro Swim Team | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 841 | Iris Peng | 50.10 | 9 | B Min | BB: 49.69 (+0.41s | 0.8%) | Bellevue Club Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 842 | Ka Choon | 50.10 | 9 | B Min | BB: 49.69 (+0.41s | 0.8%) | Stingray Swim Team | 05/28/2026 | 2026 IE VS Apple Capital | |
| 843 | Inara Carpenter | 50.12 | 9 | B Min | BB: 49.69 (+0.43s | 0.9%) | Valley Aquatics | 07/10/2026 | 2026 PN OCA Last Chance Invitational Approve | |
| 844 | Layla Kandil | 50.13 | 9 | B Min | BB: 49.69 (+0.44s | 0.9%) | Hills Hurricane Swimming | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 845 | Layla Li | 50.13 | 10 | B Min | BB: 49.69 (+0.44s | 0.9%) | Daly City Dolphins | 07/25/2026 | Alto Last Splash | |
| 846 | Chengxi Song | 50.15 | 8 | B Min | BB: 49.69 (+0.46s | 0.9%) | Alto Swim Club | 07/19/2025 | Alto Last Splash | |
| 847 | Wrenly Wright | 50.15 | 9 | B Min | BB: 49.69 (+0.46s | 0.9%) | SlipStream Aquatics | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 848 | Atley Saba | 50.15 | 9 | B Min | BB: 49.69 (+0.46s | 0.9%) | Forest Grove Swim Club | 07/10/2026 | 2026 OSI Arena Summer LC 12 U Championships | |
| 849 | Ella Nguyen | 50.16 | 9 | B Min | BB: 49.69 (+0.47s | 0.9%) | Excel Aquatics | 04/24/2026 | 2026 Strong Tower Invite | |
| 850 | Elsie Woo | 50.18 | 10 | B Min | BB: 49.69 (+0.49s | 1.0%) | Punahou Aquatics Institute | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
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.