USA Girls 10 & under - 50 M 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 251 | Olivia Posegay | 44.79 | 9 | BB Min | A: 43.59 (+1.20s | 2.7%) | Nitro Swimming | 06/20/2025 | 2025 ST NTRO LC Prelim Final Invite | |
| 252 | Madison Lee | 44.81 | 9 | BB Min | A: 43.59 (+1.22s | 2.7%) | Olympus Aquatics | 06/27/2025 | 2nd Annual Water Dragon Open | |
| 253 | Adrienne Rast | 44.81 | 10 | BB Min | A: 43.59 (+1.22s | 2.7%) | Nitro Swimming | 05/11/2025 | 2025 ST NTRO LC Springing Into May | |
| 254 | Isla Uccellini | 44.86 | 10 | BB Min | A: 43.59 (+1.27s | 2.8%) | Nova of Virginia | 07/11/2024 | 2024 RAYS Summer Awards | |
| 255 | Piper Dendinger | 44.86 | 10 | BB Min | A: 43.59 (+1.27s | 2.8%) | Vermillion Area Swim Team | 06/20/2025 | VAST SPLASH | |
| 256 | Aysa Lolia | 44.88 | 9 | BB Min | A: 43.59 (+1.29s | 2.9%) | Ccat Swimming | 07/23/2025 | 2025 CA SCS Summer A G Champs | |
| 257 | Clara Larkin | 44.89 | 9 | BB Min | A: 43.59 (+1.30s | 2.9%) | North Coast Aquatics | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 258 | Cora Kallas | 44.92 | 10 | BB Min | A: 43.59 (+1.33s | 3.0%) | Wasatch Front Fish Market | 07/17/2025 | 2025 UTAGS LC Championships | |
| 259 | Jhene Lee | 44.92 | 10 | BB Min | A: 43.59 (+1.33s | 3.0%) | Freedom Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 260 | Ava McDonough | 44.96 | 9 | BB Min | A: 43.59 (+1.37s | 3.0%) | Bolles School Sharks | 05/23/2025 | EAJ Mayhem 2025 | |
| 261 | Amelia Joseph | 44.99 | 10 | BB Min | A: 43.59 (+1.40s | 3.1%) | Bolles School Sharks | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 262 | Anna Latham | 45.00 | 10 | BB Min | A: 43.59 (+1.41s | 3.1%) | Front Range Barracudas | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 263 | Danielle Peacock | 45.02 | 10 | BB Min | A: 43.59 (+1.43s | 3.2%) | Bellingham Bay Swim Team | 07/24/2025 | 2025 PN LC 12 U Championships | |
| 264 | Hellen Xia | 45.08 | 10 | BB Min | A: 43.59 (+1.49s | 3.3%) | Trident Swim Club | 07/24/2025 | 2025 CA SCS RAA Summer A G Champs | |
| 265 | Catherine Gleason | 45.09 | 10 | BB Min | A: 43.59 (+1.50s | 3.3%) | Seattle Metropolitan Aquatic C | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 266 | Jaclyn Smid | 45.09 | 9 | BB Min | A: 43.59 (+1.50s | 3.3%) | UN Fgcu | 06/20/2025 | 2025 GCST MARK MCCAW SUMMER | |
| 267 | Mavis McClafferty | 45.09 | 10 | BB Min | A: 43.59 (+1.50s | 3.3%) | Columbia River Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 268 | Khloe Morse | 45.12 | 10 | BB Min | A: 43.59 (+1.53s | 3.4%) | Carrollwood Village Swim Team | 05/16/2025 | 2025 SAINT PETE S 2nd LONG COURSE MEET | |
| 269 | Eva Atanasov | 45.12 | 10 | BB Min | A: 43.59 (+1.53s | 3.4%) | Tualatin Hills Swim Club | 07/05/2025 | 2025 OR CRST Summer Blast 3 | |
| 270 | Henrietta Naber | 45.13 | 10 | BB Min | A: 43.59 (+1.54s | 3.4%) | Riptide Swim Team | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 271 | Lillian Kozina | 45.14 | 10 | BB Min | A: 43.59 (+1.55s | 3.4%) | Front Range Barracudas | 07/11/2025 | 2025 CO NCS Gold District Championships | |
| 272 | Adelaide Flaherty | 45.15 | 9 | BB Min | A: 43.59 (+1.56s | 3.5%) | Olympus Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 273 | Alexa Jenner | 45.16 | 9 | BB Min | A: 43.59 (+1.57s | 3.5%) | Phoenix Swim Club | 06/20/2025 | 2025 SI SPLASH AND DASH | |
| 274 | Stella Hogendorn | 45.17 | 10 | BB Min | A: 43.59 (+1.58s | 3.5%) | Hurricanes Swim Team | 07/18/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 275 | Abigail Franks | 45.18 | 9 | BB Min | A: 43.59 (+1.59s | 3.5%) | Nitro Swimming | 06/20/2025 | 2025 ST NTRO LC Prelim Final Invite | |
| 276 | Brooke Byers | 45.19 | 10 | BB Min | A: 43.59 (+1.60s | 3.5%) | Aces Swim Club | 07/25/2025 | 2025 CO CSI Age Group Championships | |
| 277 | Calista Dickinson | 45.19 | 9 | BB Min | A: 43.59 (+1.60s | 3.5%) | Boulder City Henderson Swim Te | 03/30/2025 | Sand Vs BCH LCM Dual 2025 | |
| 278 | Marley Raulerson | 45.20 | 9 | BB Min | A: 43.59 (+1.61s | 3.6%) | Nova of Virginia | 06/27/2024 | NOVA Firecracker Classic | |
| 279 | Gracyn Connelly | 45.22 | 10 | BB Min | A: 43.59 (+1.63s | 3.6%) | SwimRise Aquatics | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 280 | Miriam Schissler | 45.25 | 9 | BB Min | A: 43.59 (+1.66s | 3.7%) | San Clemente Aquatic Team | 06/12/2025 | 2025 June Age Group Invite | |
| 281 | Findley Citta | 45.28 | 10 | BB Min | A: 43.59 (+1.69s | 3.7%) | Makos Aquatics Club of Gainesv | 05/16/2025 | 2025 FAST May Invite | |
| 282 | Peyton Lintereur | 45.28 | 9 | BB Min | A: 43.59 (+1.69s | 3.7%) | Riptide Swim Team | 06/26/2025 | 2025 MN AQJT Aquajets Summer Spectacular | |
| 283 | Angelene Zheng | 45.29 | 9 | BB Min | A: 43.59 (+1.70s | 3.8%) | Blazing Barracudas | 07/12/2025 | LSSC Avon Classic | |
| 284 | EmmaLynn McBee | 45.30 | 10 | BB Min | A: 43.59 (+1.71s | 3.8%) | Lehi Aquatics | 06/27/2025 | WFFM Red White And Black 2025 | |
| 285 | Sofia Martinez | 45.31 | 10 | BB Min | A: 43.59 (+1.72s | 3.8%) | Gold\\\\\\'s Aquatics Club (Camas) | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 286 | Alivia Lee | 45.31 | 10 | BB Min | A: 43.59 (+1.72s | 3.8%) | Pro Swimming | 07/11/2025 | 2025 PN OCA July Jamboree Invitational | |
| 287 | Claire Allen | 45.31 | 10 | BB Min | A: 43.59 (+1.72s | 3.8%) | Bolles School Sharks | 05/23/2025 | EAJ Mayhem 2025 | |
| 288 | Cecelia Wolf | 45.39 | 10 | BB Min | A: 43.59 (+1.80s | 4.0%) | Edina Swim Club | 07/18/2025 | 2025 MN MAN Minnesota Regional Championship | |
| 289 | Leilani Booker | 45.40 | 9 | BB Min | A: 43.59 (+1.81s | 4.0%) | Sampson Family YMCA | 08/06/2025 | 2025 Summer Elite Showcase | |
| 290 | Hayden Garrahan | 45.41 | 10 | BB Min | A: 43.59 (+1.82s | 4.0%) | Riptide Swim Team | 07/18/2025 | 2025 MN STRM Minnesota Regional Championship | |
| 291 | Quinn Jelinek | 45.47 | 10 | BB Min | A: 43.59 (+1.88s | 4.1%) | Riptide Swim Team | 07/18/2025 | 2025 MN STRM Minnesota Regional Championship | |
| 292 | Ivy Cope | 45.48 | 10 | BB Min | A: 43.59 (+1.89s | 4.2%) | Lowes YMCA Lightning Swim Team | 05/31/2024 | 2024 Virginia Commonwealth Games | |
| 293 | Ayesha Haynes | 45.49 | 9 | BB Min | A: 43.59 (+1.90s | 4.2%) | Academy Aquatic Club | 06/06/2025 | 2025 TAMPA BAY SWIM CLASSIC | |
| 294 | Hazel Nance | 45.50 | 10 | BB Min | A: 43.59 (+1.91s | 4.2%) | Lake Oswego Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 295 | Emilia Langdon | 45.51 | 10 | BB Min | A: 43.59 (+1.92s | 4.2%) | Palo Alto Stanford Aquatics | 06/27/2025 | Silicon Valley LC CBA+ Meet | |
| 296 | Luna Dong | 45.54 | 9 | BB Min | A: 43.59 (+1.95s | 4.3%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 297 | Bridget Thayer | 45.54 | 10 | BB Min | A: 43.59 (+1.95s | 4.3%) | Tuna Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 298 | Talina Naffziger | 45.55 | 10 | BB Min | A: 43.59 (+1.96s | 4.3%) | Castle Rock Swimming | 06/20/2025 | 2025 Falfins Long Course Open | |
| 299 | Lucy Fronk | 45.56 | 9 | BB Min | A: 43.59 (+1.97s | 4.3%) | South Davis Aquatics Team | 07/17/2025 | 2025 UTAGS LC Championships | |
| 300 | Ella Henry | 45.58 | 9 | BB Min | A: 43.59 (+1.99s | 4.4%) | Albany Armada Aquatics | 06/20/2025 | Reno Aquatic Club Gamble | |
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.