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 | |
|---|---|---|---|---|---|---|---|---|---|
| 7251 | Lillian Petterson | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Edina Swim Club | 01/10/2025 | 2025 MN FOXJ Winter Classic | |
| 7252 | Alara Goker | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Life Time Fitness New York Swi | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 7253 | Harlowe Hart | 48.20 | 8 | B Min | BB: 43.29 (+4.91s | 10.2%) | Danvers YMCA Dolfins | 06/06/2026 | 2026 NE NSSC June Invitational @ SJP | |
| 7254 | Sophie Boss | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | South Bay Aquatics | 05/03/2026 | Mission Valley YMCA Rising Stars 1 | |
| 7255 | Hope Dargan | 48.20 | 10 | B Min | BB: 43.29 (+4.91s | 10.2%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 7256 | Leila Stevenson | 48.21 | 8 | B Min | BB: 43.29 (+4.92s | 10.2%) | Sarasota Tsunami Swim Team | 02/21/2026 | CCS Last Chance Meet Feb 2026 | |
| 7257 | Alder Clayton | 48.21 | 10 | B Min | BB: 43.29 (+4.92s | 10.2%) | College Area Swim Team | 11/08/2025 | HSA All Ages NTS | |
| 7258 | Landry Toney | 48.21 | 8 | B Min | BB: 43.29 (+4.92s | 10.2%) | Barracuda Swim Club of Northea | 02/13/2026 | 2026 SE BAY Region 2 Championships Copied | |
| 7259 | Jemma Shen | 48.21 | 9 | B Min | BB: 43.29 (+4.92s | 10.2%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 7260 | Betheny Bethel | 48.21 | 8 | B Min | BB: 43.29 (+4.92s | 10.2%) | WeAquatics | 12/06/2025 | 2025 PAC 11 Over Snow Globe Champs | |
| 7261 | Eden Kleffman | 48.21 | 8 | B Min | BB: 43.29 (+4.92s | 10.2%) | Aberdeen Swim Club | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 7262 | Grace Butterfield | 48.21 | 9 | B Min | BB: 43.29 (+4.92s | 10.2%) | Riptide Swim Team | 12/13/2024 | 2024 CO Loveland Holiday Showdown | |
| 7263 | Orla Strubel | 48.21 | 9 | B Min | BB: 43.29 (+4.92s | 10.2%) | Ygb Sea Dragons | 01/10/2026 | 2026 NE YNS YMCA Eastern MA Districts | |
| 7264 | Brynlee Brockbank | 48.22 | 9 | B Min | BB: 43.29 (+4.93s | 10.2%) | Nova of Virginia | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 7265 | Ava Love | 48.22 | 10 | B Min | BB: 43.29 (+4.93s | 10.2%) | Saline Swim Team | 02/28/2026 | 2026 Last Chance Meet | |
| 7266 | Sofia Gabriel | 48.22 | 10 | B Min | BB: 43.29 (+4.93s | 10.2%) | DC Dept Of Parks and Recreatio | 05/22/2026 | 2026 ISCA National Diversity Swim Champ | |
| 7267 | Jamison Antalek | 48.22 | 8 | B Min | BB: 43.29 (+4.93s | 10.2%) | Highlands Ranch Aquatics | 12/19/2025 | 2025 CO Falfins Holiday Open | |
| 7268 | Aaleyah Hutchinson | 48.22 | 9 | B Min | BB: 43.29 (+4.93s | 10.2%) | Middies Wave Ryders | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 7269 | Anna Ramos | 48.22 | 9 | B Min | BB: 43.29 (+4.93s | 10.2%) | Swim Fort Lauderdale | 04/18/2026 | SoFlo 12 Under Spring Invitational | |
| 7270 | Kalianne Diprojetto | 48.22 | 10 | B Min | BB: 43.29 (+4.93s | 10.2%) | Sailfish Aquatics | 03/07/2026 | 2026 MSA March Madness Invitational | |
| 7271 | Maeve McMahon | 48.22 | 10 | B Min | BB: 43.29 (+4.93s | 10.2%) | Empire Swimming | 02/06/2026 | 2026 MR YMID February Classic Copied | |
| 7272 | Merritt Harkins | 48.23 | 9 | B Min | BB: 43.29 (+4.94s | 10.2%) | Memphis Tiger Swimming | 01/16/2026 | 2026 Gabrielle Rose Tiger Classic | |
| 7273 | Amelia Beck | 48.23 | 8 | B Min | BB: 43.29 (+4.94s | 10.2%) | Life Time Michigan Swim Team | 02/14/2026 | 2026 Best ValenTimes Meet | |
| 7274 | Reina Hori | 48.23 | 8 | B Min | BB: 43.29 (+4.94s | 10.2%) | Long Island Aquatic Club | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 7275 | Maria Hall | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Ensworth Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 7276 | Jane Kernan | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Condors Swim Club | 12/05/2025 | 2025 MR BGNW December 14 Under Invitational | |
| 7277 | Avery Huskins | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Gator Swim Club | 09/21/2025 | 2025 FAST Pentathlon | |
| 7278 | Finley Houtzer | 48.23 | 7 | B Min | BB: 43.29 (+4.94s | 10.2%) | Olympic Cascade Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 7279 | Grace Bock | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Atlantis Swimming Federation | 12/06/2024 | 2024 MN ASF Friday Night 1000 | |
| 7280 | Emilia Siminovskaya | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Park City Swimming | 10/10/2025 | 2025 PC Sprints | |
| 7281 | Zayna Jafri | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Empire Swimming | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 7282 | Anna Kabalina | 48.23 | 10 | B Min | BB: 43.29 (+4.94s | 10.2%) | Cape Cod Swim Club | 05/15/2026 | 2026 NE CCSC Medley Mayhem At Sandwich High | |
| 7283 | Alexandra Maa | 48.23 | 7 | B Min | BB: 43.29 (+4.94s | 10.2%) | Alto Swim Club | 03/29/2025 | Alto Rock The Blocks Invitational | |
| 7284 | Eleanor Misa | 48.24 | 8 | B Min | BB: 43.29 (+4.95s | 10.3%) | Commonwealth Swimming | 12/13/2024 | 2024 ME ABF Michelle Arpin | |
| 7285 | Matilda Garner | 48.24 | 10 | B Min | BB: 43.29 (+4.95s | 10.3%) | Park City Swimming | 10/10/2025 | 2025 PC Sprints | |
| 7286 | Charlotte Talbert | 48.24 | 10 | B Min | BB: 43.29 (+4.95s | 10.3%) | Burlington YMCA Dynamo | 03/13/2026 | 2026 NE NSSC NE Cup Championship | |
| 7287 | Samantha Valdes | 48.24 | 10 | B Min | BB: 43.29 (+4.95s | 10.3%) | Alamo Area Aquatic Association | 02/24/2026 | 2026 ST AAAA NS End Of Season Race Nights | |
| 7288 | Riley Cha-Spears | 48.24 | 8 | B Min | BB: 43.29 (+4.95s | 10.3%) | Long Island Aquatic Club | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 7289 | Devin Luther | 48.24 | 9 | B Min | BB: 43.29 (+4.95s | 10.3%) | Asphalt Green Unified Aquatics | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 7290 | Esme Eckel | 48.24 | 10 | B Min | BB: 43.29 (+4.95s | 10.3%) | Blackline Aquatics | 02/21/2026 | 2026 MN FOXJ MN Bronze Championship | |
| 7291 | Autumn Tong | 48.24 | 8 | B Min | BB: 43.29 (+4.95s | 10.3%) | Edina Swim Club | 02/13/2026 | 2026 MN RSC President S Day Meet | |
| 7292 | Sophia Suckow | 48.24 | 9 | B Min | BB: 43.29 (+4.95s | 10.3%) | Monticello Swim Club | 05/28/2026 | 2026 MN WAVE A May Zing Minni Meet | |
| 7293 | Luciana Blanco Lizarazo | 48.24 | 10 | B Min | BB: 43.29 (+4.95s | 10.3%) | Tide Swimming | 02/13/2026 | 2026 Southeast District 9 12 Championship | |
| 7294 | Eva Dingankar | 48.24 | 9 | B Min | BB: 43.29 (+4.95s | 10.3%) | Unattached | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 7295 | Harper Hatling | 48.25 | 9 | B Min | BB: 43.29 (+4.96s | 10.3%) | Minneapolis Lake Monsters | 02/21/2026 | 2026 MN FOXJ MN Bronze Championship | |
| 7296 | Alina Anirudh | 48.25 | 10 | B Min | BB: 43.29 (+4.96s | 10.3%) | Alto Swim Club | 03/07/2026 | DACA CBA Meet | |
| 7297 | Lucy Rillo | 48.25 | 10 | B Min | BB: 43.29 (+4.96s | 10.3%) | Tidal Wave Aquatics | 02/20/2026 | 2026 OH WAVE SC Regional Championships | |
| 7298 | Quinn Datoc | 48.25 | 7 | B Min | BB: 43.29 (+4.96s | 10.3%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 7299 | Jackie Alfaro | 48.25 | 10 | B Min | BB: 43.29 (+4.96s | 10.3%) | North Palm Beach Swim Club | 11/21/2025 | 2025 NPB Turkey Invite | |
| 7300 | Esther Brookhart | 48.25 | 9 | B Min | BB: 43.29 (+4.96s | 10.3%) | Raleigh Swimming Association | 01/16/2026 | 2026 RSA Winter Tri | |
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.