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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1251 | Kalista Choo | 53.76 | 9 | B Min | BB: 49.69 (+4.07s | 7.6%) | Alameda Gators | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1252 | Keller Mccutcheon | 53.76 | 10 | B Min | BB: 49.69 (+4.07s | 7.6%) | Cortez Water Dragons | 07/11/2025 | 2025 CO Western Slope LeagueChampionships | |
| 1253 | Bella Nieblas | 53.77 | 10 | B Min | BB: 49.69 (+4.08s | 7.6%) | Renegade Aquatics | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 1254 | Leighton Demo | 53.77 | 9 | B Min | BB: 49.69 (+4.08s | 7.6%) | Capital City Athletics | 05/02/2026 | 2026 CO Longmont IMR IMX Adrenaline Gauntlet | |
| 1255 | Tessa Piotrowski | 53.78 | 9 | B Min | BB: 49.69 (+4.09s | 7.6%) | Foothills Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 1256 | Wesley Siebe | 53.80 | 9 | B Min | BB: 49.69 (+4.11s | 7.6%) | Bend Swim Club | 06/19/2026 | Bend Swim Club Sun Country Invite 2026 | |
| 1257 | Michelle Dinh | 53.82 | 9 | B Min | BB: 49.69 (+4.13s | 7.7%) | Legacy Aquatics | 06/26/2026 | 2026 TEAM Summer Invitational | |
| 1258 | Mila Astorga | 53.82 | 10 | B Min | BB: 49.69 (+4.13s | 7.7%) | Portland Aquatic Club | 06/20/2025 | 72nd Annual Ted Walker Invitational | |
| 1259 | Maggie Larison | 53.83 | 9 | B Min | BB: 49.69 (+4.14s | 7.7%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | |
| 1260 | Deborah Wu | 53.84 | 8 | B Min | BB: 49.69 (+4.15s | 7.7%) | South San Francisco Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 1261 | Charlotte Kalogrides | 53.84 | 8 | B Min | BB: 49.69 (+4.15s | 7.7%) | Santa Clara Swim Club | 06/27/2026 | 2026 Santa Clara LC Race To Age Group Champs | |
| 1262 | Kennedy Canepa | 53.85 | 10 | B Min | BB: 49.69 (+4.16s | 7.7%) | Tiger Aquatics | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 1263 | Kaitlyn Grandt | 53.86 | 10 | B Min | BB: 49.69 (+4.17s | 7.7%) | Front Range Barracudas | 04/25/2025 | 2025 CO Steve Drozda LC Shotgun | |
| 1264 | Hannah Peck | 53.86 | 7 | B Min | BB: 49.69 (+4.17s | 7.7%) | Terrapins Swim Team | 05/23/2026 | 2026 Tiger Aquatics C B BB+ Memorial Day Meet | |
| 1265 | Jennifer Zhao | 53.86 | 10 | B Min | BB: 49.69 (+4.17s | 7.7%) | Palo Alto Stanford Aquatics | 05/16/2026 | 2026 DACA LC CBA+ | |
| 1266 | Josephine Turner | 53.87 | 10 | B Min | BB: 49.69 (+4.18s | 7.8%) | King Aquatic Club | 04/25/2025 | 2025 PN KING Spring Derby | |
| 1267 | Kate Lackey | 53.88 | 8 | B Min | BB: 49.69 (+4.19s | 7.8%) | Denver Swim Academy | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 1268 | Hannah Anslinger | 53.89 | 10 | B Min | BB: 49.69 (+4.20s | 7.8%) | The Dalles Swim Team | 06/12/2026 | 73rd Ted Walker Invitational 2026 | |
| 1269 | Ami Tanaka | 53.89 | 9 | B Min | BB: 49.69 (+4.20s | 7.8%) | Burlingame Aquatics | 06/29/2024 | Alto Summer Swelter | |
| 1270 | Qianxun Min | 53.90 | 7 | B Min | BB: 49.69 (+4.21s | 7.8%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 1271 | Phoebe Cummings | 53.92 | 10 | B Min | BB: 49.69 (+4.23s | 7.8%) | Team Eugene Aquatics | 05/08/2026 | Bend Swim Club May Invitational 2026 | |
| 1272 | Amber Chan | 53.93 | 9 | B Min | BB: 49.69 (+4.24s | 7.9%) | Palo Alto Stanford Aquatics | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1273 | Norah Young | 53.95 | 10 | B Min | BB: 49.69 (+4.26s | 7.9%) | Hillsboro Swim Team | 06/06/2025 | 2025 CST Summer Invitational | |
| 1274 | Rosalie McNutt | 53.96 | 9 | B Min | BB: 49.69 (+4.27s | 7.9%) | Loveland Swim Club | 04/24/2026 | 2026 CO FAST Spring Splash | |
| 1275 | Ava Donovan | 53.96 | 9 | B Min | BB: 49.69 (+4.27s | 7.9%) | Aquawolves Swimming | 05/23/2026 | 2026 CO CUDA Vs AQUA Dual | |
| 1276 | June Johnston | 53.96 | 10 | B Min | BB: 49.69 (+4.27s | 7.9%) | Kamehameha Swim Club | 05/02/2026 | Keiko Price Sprint Meet Aloha Mile | |
| 1277 | Anuchandra Praveen Kumar | 53.98 | 10 | B Min | BB: 49.69 (+4.29s | 7.9%) | Brentwood Seawolves | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 1278 | Delaney Moody | 53.98 | 9 | B Min | BB: 49.69 (+4.29s | 7.9%) | Fallon Barracuda Swim Team | 06/20/2025 | Reno Aquatic Club Gamble | |
| 1279 | Tylee Stratton | 53.98 | 9 | B Min | BB: 49.69 (+4.29s | 7.9%) | Spokane Waves Aquatic Team | 06/19/2026 | 2026 SWAT Summer Solstice | |
| 1280 | Charlotte Wong | 53.99 | 10 | B Min | BB: 49.69 (+4.30s | 8.0%) | Sunnyvale Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 1281 | Sarah Chen | 53.99 | 9 | B Min | BB: 49.69 (+4.30s | 8.0%) | Alto Swim Club | 05/02/2026 | Alto Spring Jam CBA | |
| 1282 | Chin-Erdene Munkhdorj | 54.00 | 10 | B Min | BB: 49.69 (+4.31s | 8.0%) | Lehi Aquatics | 04/25/2025 | 2025 Stingrays LC Kickoff | |
| 1283 | Emma Clarke | 54.00 | 9 | B Min | BB: 49.69 (+4.31s | 8.0%) | Greenwood Tiger Sharks | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 1284 | Elysia Esparza-Chen | 54.01 | 9 | B Min | BB: 49.69 (+4.32s | 8.0%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 1285 | Addison Mou | 54.01 | 10 | B Min | BB: 49.69 (+4.32s | 8.0%) | Almaden Riptide | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 1286 | Brynn Mumford | 54.02 | 9 | B Min | BB: 49.69 (+4.33s | 8.0%) | Coastal Machine Aquatics Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 1287 | Lily Balliet | 54.02 | 8 | B Min | BB: 49.69 (+4.33s | 8.0%) | Castle Rock Swimming | 06/26/2026 | 2026 CO Zone 2 District Meet DU | |
| 1288 | Allison Northcutt | 54.03 | 10 | B Min | BB: 49.69 (+4.34s | 8.0%) | Apex | 06/05/2026 | 2026 CST Summer Invitational | |
| 1289 | Hailey Engler | 54.03 | 9 | B Min | BB: 49.69 (+4.34s | 8.0%) | Sandpipers of Nevada | 03/30/2025 | Sand Vs BCH LCM Dual 2025 | |
| 1290 | Maya Tovbis | 54.03 | 10 | B Min | BB: 49.69 (+4.34s | 8.0%) | Otter Swim Club | 05/16/2026 | 2026 DACA LC CBA+ | |
| 1291 | Emma Eagleton | 54.03 | 10 | B Min | BB: 49.69 (+4.34s | 8.0%) | Pacific Swim | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 1292 | Ivy McCrea | 54.06 | 9 | B Min | BB: 49.69 (+4.37s | 8.1%) | Vallejo Aquatic Club | 06/20/2025 | Reno Aquatic Club Gamble | |
| 1293 | Ila Knackstedt | 54.08 | 10 | B Min | BB: 49.69 (+4.39s | 8.1%) | Swim Lake City Legends | 07/17/2025 | 2025 UTAGS LC Championships | |
| 1294 | Kelly Xia | 54.09 | 9 | B Min | BB: 49.69 (+4.40s | 8.1%) | Palo Alto Stanford Aquatics | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 1295 | Mia Tamura | 54.11 | 9 | B Min | BB: 49.69 (+4.42s | 8.2%) | Sunnyvale Swim Club | 06/12/2026 | 2026 DACA LC CBA Meet | |
| 1296 | Brielle Akers | 54.12 | 9 | B Min | BB: 49.69 (+4.43s | 8.2%) | Coronado Swim -team Elite | 05/23/2026 | SI 2026 TAC CSTE All Ages NTS Meet | |
| 1297 | Hazel Towns | 54.12 | 9 | B Min | BB: 49.69 (+4.43s | 8.2%) | Olympus Aquatics | 06/06/2025 | Speed Lake City 2025 | |
| 1298 | Caelyn Gibbons | 54.15 | 9 | B Min | BB: 49.69 (+4.46s | 8.2%) | Pikes Peak Athletics | 06/19/2026 | 2026 CO Falfins Long Course Open | |
| 1299 | Phoebe Medeiros | 54.16 | 9 | B Min | BB: 49.69 (+4.47s | 8.3%) | Loveland Swim Club | 05/29/2026 | 2026 CO Barracuda Summer Sizzler Invite | |
| 1300 | Cora Sun | 54.16 | 9 | B Min | BB: 49.69 (+4.47s | 8.3%) | Wave Aquatics | 05/31/2025 | 2025 PN VAST Summer Sprints And Distance Chal | |
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.