USA Girls 10 & under - 50 Y Back
These rankings show the swimmers' placement within the United States.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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4301 | Alyssa Ko | 43.44 | 9 | B Min | BB: 43.29 (+0.15s | 0.3%) | Diablo Aquatics | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 4302 | Johanna Hoerlein | 43.44 | 9 | B Min | BB: 43.29 (+0.15s | 0.3%) | Spartan Aquatic Club | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 4303 | Maggie Spurlock | 43.44 | 10 | B Min | BB: 43.29 (+0.15s | 0.3%) | Sailfish Swim Team | 10/17/2025 | 2025 NE NSSC Beede Halloween Classic Copied | |
| 4304 | Mia Huang | 43.44 | 10 | B Min | BB: 43.29 (+0.15s | 0.3%) | Rochester Swim Club | 02/13/2026 | 2026 MN RSC President S Day Meet | |
| 4305 | Evelyn Ellington | 43.44 | 9 | B Min | BB: 43.29 (+0.15s | 0.3%) | Dolphin Club | 09/26/2025 | 2025 SwimRVA Blastoff Meet | |
| 4306 | Quinn Rich | 43.44 | 10 | B Min | BB: 43.29 (+0.15s | 0.3%) | North Kent Aquatic Team | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 4307 | Molly Nightingale | 43.44 | 9 | B Min | BB: 43.29 (+0.15s | 0.3%) | Black Marlins Swim Team | 03/13/2026 | 2026 Shawmut NE Cup Championship | |
| 4308 | Azadeh Corsiglia | 43.45 | 10 | B Min | BB: 43.29 (+0.16s | 0.4%) | DeAnza Cupertino Aquatics | 10/11/2025 | 2025 DACA SC CBA Meet | |
| 4309 | Mariella Scatamacchia | 43.45 | 9 | B Min | BB: 43.29 (+0.16s | 0.4%) | Marlins Of Raleigh | 03/14/2026 | 2026 MOR Reagan Martin Rocks Swim Meet | |
| 4310 | Zevi Puro | 43.45 | 9 | B Min | BB: 43.29 (+0.16s | 0.4%) | Miami County Day Aquatic | 11/01/2025 | Piranhas Turkey Classic 2025 | |
| 4311 | Anna Makovski | 43.45 | 10 | B Min | BB: 43.29 (+0.16s | 0.4%) | King Aquatic Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 4312 | Paige Lin | 43.45 | 8 | B Min | BB: 43.29 (+0.16s | 0.4%) | Otter Swim Club | 03/07/2026 | 2026 PASA Last Chance For JO S | |
| 4313 | Jo Drost | 43.45 | 9 | B Min | BB: 43.29 (+0.16s | 0.4%) | Vacationland Swim Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
| 4314 | Emily Fantz | 43.45 | 10 | B Min | BB: 43.29 (+0.16s | 0.4%) | Lake Oswego Swim Club | 02/22/2025 | 2025 Arena Short Course 10 U Championships | |
| 4315 | Madeline Schmidt | 43.46 | 10 | B Min | BB: 43.29 (+0.17s | 0.4%) | Denver Swim Academy | 02/14/2026 | 2026 CO ACES Winter Open | |
| 4316 | Oakley Froelich | 43.46 | 9 | B Min | BB: 43.29 (+0.17s | 0.4%) | Rochester Swim Club | 02/27/2026 | 2026 MN RSC Minnesota Regional Championship | |
| 4317 | Luna Zeng | 43.46 | 10 | B Min | BB: 43.29 (+0.17s | 0.4%) | Madison Swimming Association | 02/06/2026 | 2026 SES Region 3 Champions | |
| 4318 | Aliana Mazon | 43.46 | 9 | B Min | BB: 43.29 (+0.17s | 0.4%) | Pueblo Swim Club | 02/13/2026 | 2026 CO Valentine Open | |
| 4319 | Maliyah Woods | 43.46 | 10 | B Min | BB: 43.29 (+0.17s | 0.4%) | Detroit All Star Aquatics | 03/07/2026 | 2026 Lake Erie Regional Meet | |
| 4320 | Chloe Kim | 43.46 | 10 | B Min | BB: 43.29 (+0.17s | 0.4%) | Phoenix Aquatic Club | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 4321 | Chloe Riggins | 43.46 | 9 | B Min | BB: 43.29 (+0.17s | 0.4%) | Huntsville Swim Association | 12/05/2025 | 2025 Holiday Classic | |
| 4322 | Audrey Rainow | 43.46 | 8 | B Min | BB: 43.29 (+0.17s | 0.4%) | Thunder Coast Aquatics | 03/28/2026 | Alto Rock The Blocks Invitational 2026 | |
| 4323 | Mia Morgan | 43.46 | 10 | B Min | BB: 43.29 (+0.17s | 0.4%) | North Baltimore Aquatic Club | 11/14/2025 | 2025 NBAC Thanksgiving Meet | |
| 4324 | Deetya Ivalla | 43.47 | 10 | B Min | BB: 43.29 (+0.18s | 0.4%) | Drop Aquatics | 02/27/2026 | 2026 MCSA Junior Cup | |
| 4325 | Harper Walden | 43.47 | 9 | B Min | BB: 43.29 (+0.18s | 0.4%) | Mississippi Makos Swim Team | 12/05/2025 | 2025 SE Christmas In Auburn | |
| 4326 | Josi Ciccone | 43.47 | 9 | B Min | BB: 43.29 (+0.18s | 0.4%) | Atlantis Swimming | 02/27/2026 | 2026 MCSA Junior Cup | |
| 4327 | Mary Champness | 43.47 | 9 | B Min | BB: 43.29 (+0.18s | 0.4%) | Empire Swimming | 11/08/2025 | 2025 MR PAC Maria Parmanan Invitational | |
| 4328 | Vivian Shepherd | 43.47 | 9 | B Min | BB: 43.29 (+0.18s | 0.4%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/22/2025 | 2025 Royal Fall Cup | |
| 4329 | Nikki Zhang | 43.47 | 8 | B Min | BB: 43.29 (+0.18s | 0.4%) | YMCA of Snohomish County Barra | 01/24/2026 | 2026 WA State Y Championship Meet | |
| 4330 | Claire DelRio | 43.47 | 9 | B Min | BB: 43.29 (+0.18s | 0.4%) | Sarasota Tsunami Swim Team | 12/13/2025 | CCS Holiday Classic 2025 | |
| 4331 | Jaidah Ward | 43.47 | 8 | B Min | BB: 43.29 (+0.18s | 0.4%) | Carrollwood Village Swim Team | 02/06/2026 | CVST Sweetheart Meet | |
| 4332 | Sara Todd | 43.47 | 10 | B Min | BB: 43.29 (+0.18s | 0.4%) | Orange Beach Swim Team | 11/21/2025 | 2025 GPAC Gravy Bowl Invitational | |
| 4333 | Zoe Uchimoto | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Maui Dolphins Swim Club | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | |
| 4334 | Harlow Herman | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Aquawolves Swimming | 02/14/2026 | 2026 CO AQUA February Home Meet | |
| 4335 | Chloe Wang | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Pleasanton Seahawks | 10/18/2025 | PC SRVA SCY B BB+ Meet | |
| 4336 | Selene Xia | 43.48 | 7 | B Min | BB: 43.29 (+0.19s | 0.4%) | Saline Swim Team | 02/28/2026 | 2026 Last Chance Meet | |
| 4337 | Sarah Zhou | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | YMCA of Metro North Tritons | 01/16/2026 | 2026 NE CRIM Bronze Championship | |
| 4338 | Madison Kelly | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Frederick Area Swim Team | 03/21/2026 | 2026 Maryland 9 10 B Championship Meet | |
| 4339 | Audrey Gallego | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Unattached | 11/28/2025 | 2025 MR LIE Thanksgiving Invitational | |
| 4340 | Hana Rayan | 43.48 | 10 | B Min | BB: 43.29 (+0.19s | 0.4%) | Poseidon Swimming Inc | 11/22/2025 | NOVA Cranberry Contender | |
| 4341 | Kanna Matsushita | 43.48 | 9 | B Min | BB: 43.29 (+0.19s | 0.4%) | Tac Titans | 03/25/2026 | 2026 TAC TITANS Tarheel States Meet | |
| 4342 | Adelaide Stephenson | 43.49 | 10 | B Min | BB: 43.29 (+0.20s | 0.5%) | COSA Swimming | 02/13/2026 | 2026 CO Valentine Open | |
| 4343 | Evelyn Ye | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | Alto Swim Club | 02/07/2026 | Alto Feb 7 8 CBA Valentines Day | |
| 4344 | Shanaya Bisani | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | Denver Swim Academy | 02/14/2026 | 2026 CO ACES Winter Open | |
| 4345 | Clara Cochran | 43.49 | 8 | B Min | BB: 43.29 (+0.20s | 0.5%) | Central Iowa Aquatics | 11/01/2025 | 2025 MN EDI Invite | |
| 4346 | Rae Tanapornsakul | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | The Capitol Sea Devils | 12/04/2025 | 2025 Sport Fair Winter Classic | |
| 4347 | Marjorie-Jane Tropea | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | All Star Aquatics | 02/13/2026 | 2026 ASA President S Day Classic | |
| 4348 | Liliana McPhail | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | YMCA of the Triangle Area Swim | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 4349 | Mallow Dahl | 43.49 | 10 | B Min | BB: 43.29 (+0.20s | 0.5%) | Cali Piranha Swim Team | 02/21/2026 | 2026 SI JBST Age Group Champs Max | |
| 4350 | Reagan Wolfe | 43.49 | 9 | B Min | BB: 43.29 (+0.20s | 0.5%) | Club Talon | 02/13/2026 | 2026 SE BAY Region 2 Championships Copied | |
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.