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 | |
|---|---|---|---|---|---|---|---|---|---|
| 4201 | Katerina Osborne | 55.13 | 10 | B Min | BB: 49.69 (+5.44s | 9.9%) | Old Dominion Aquatic Club | 06/05/2026 | 2026 TIDE Schools Out Classic | |
| 4202 | Olivia Hoff | 55.13 | 9 | B Min | BB: 49.69 (+5.44s | 9.9%) | Seattle Metropolitan Aquatic C | 05/28/2026 | 2026 IE VS Apple Capital | |
| 4203 | Penelope Lopez | 55.13 | 10 | B Min | BB: 49.69 (+5.44s | 9.9%) | High Performance Aquatic Club | 06/06/2026 | 2026 HPAC Sunshine Splash | |
| 4204 | Vivian Petersen | 55.13 | 7 | B Min | BB: 49.69 (+5.44s | 9.9%) | Minnetonka Swim Club | 06/05/2026 | 2026 MN NSAC Summer Invite | |
| 4205 | Aria Belting | 55.14 | 7 | B Min | BB: 49.69 (+5.45s | 9.9%) | Northfield Swim Club | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 4206 | Edith Mallonee | 55.14 | 10 | B Min | BB: 49.69 (+5.45s | 9.9%) | Csp Tideriders | 04/17/2026 | 2026 METS Long Course Kickoff | |
| 4207 | Coralie Lind | 55.15 | 9 | B Min | BB: 49.69 (+5.46s | 9.9%) | Foothills Swim Team | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 4208 | Charsey Camarena | 55.15 | 10 | B Min | BB: 49.69 (+5.46s | 9.9%) | Hills Hurricane Swimming | 06/13/2026 | Orinda PC LC AG C B BB+ | |
| 4209 | Madison Pettis | 55.17 | 10 | B Min | BB: 49.69 (+5.48s | 9.9%) | SwimRVA | 04/18/2026 | 2026 SwimRVA Carnation Clash | |
| 4210 | Brooklyn Stewart | 55.17 | 10 | B Min | BB: 49.69 (+5.48s | 9.9%) | Hillsboro Swim Team | 06/12/2026 | 2026 THSC June Open | |
| 4211 | Charlotte Greenwell | 55.17 | 9 | B Min | BB: 49.69 (+5.48s | 9.9%) | Sporting Jax Aquatic Club | 06/26/2026 | 2026 SwimRise Season Finale | |
| 4212 | Clara Lewis | 55.18 | 9 | B Min | BB: 49.69 (+5.49s | 9.9%) | New Wave Swim Team | 06/13/2026 | 2026 MOR Liberty Meet | |
| 4213 | Monroe Rusignuolo | 55.18 | 8 | B Min | BB: 49.69 (+5.49s | 9.9%) | YMCA of Austin Swim Alliance | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 4214 | Lilly Redford | 55.19 | 9 | B Min | BB: 49.69 (+5.50s | 10.0%) | Nashville Aquatic Club | 05/16/2026 | NAC LC May Classic | |
| 4215 | Kendall Kaneshiro | 55.19 | 9 | B Min | BB: 49.69 (+5.50s | 10.0%) | Splash Aquatics | 07/03/2026 | 2026 Keo Nakama Swim Meet | |
| 4216 | Chloe Yang | 55.19 | 7 | B Min | BB: 49.69 (+5.50s | 10.0%) | Nova of Virginia | 04/17/2026 | NOVA Long Course Kick Off | |
| 4217 | Schuyler Myers | 55.19 | 7 | B Min | BB: 49.69 (+5.50s | 10.0%) | South Bay Aquatics | 07/11/2025 | 2025 SI SDSA All Ages NTS Meet | |
| 4218 | Pepper West | 55.19 | 8 | B Min | BB: 49.69 (+5.50s | 10.0%) | Hillsboro Swim Team | 04/17/2026 | 2026 MAC LONG COURSE INVITATIONAL | |
| 4219 | Egwene Atwater | 55.19 | 10 | B Min | BB: 49.69 (+5.50s | 10.0%) | Tigersharks Swim Club | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 4220 | Eliza Martinich | 55.20 | 8 | B Min | BB: 49.69 (+5.51s | 10.0%) | Life Time Swim Missouri | 06/26/2026 | 88th CSP Summer Invitational | |
| 4221 | Camille Kleinhenz | 55.20 | 9 | B Min | BB: 49.69 (+5.51s | 10.0%) | Nashville Aquatic Club | 05/16/2026 | NAC LC May Classic | |
| 4222 | Nora Bohlig | 55.21 | 10 | B Min | BB: 49.69 (+5.52s | 10.0%) | Mecklenburg Swim Association | 06/20/2026 | 2026 NCS QCD Long Course Invite | |
| 4223 | Maci Imperi | 55.22 | 10 | B Min | BB: 49.69 (+5.53s | 10.0%) | Gator Swim Club | 05/16/2025 | 2025 FAST May Invite | |
| 4224 | Reagan Davey | 55.23 | 8 | B Min | BB: 49.69 (+5.54s | 10.0%) | Lakewood Ranch Swim Associatio | 04/17/2026 | 2026 GCST Spring Open | |
| 4225 | Mina Sim | 55.23 | 9 | B Min | BB: 49.69 (+5.54s | 10.0%) | Team Eugene Aquatics | 05/16/2026 | 2026 TEAM Showdown | |
| 4226 | Sophia Bull | 55.23 | 9 | B Min | BB: 49.69 (+5.54s | 10.0%) | Gulliver Swim Club | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 4227 | Stella Trammell | 55.23 | 9 | B Min | BB: 49.69 (+5.54s | 10.0%) | United Swim Club | 05/15/2026 | 2026 FAST May Invite | |
| 4228 | Harper Wick | 55.24 | 10 | B Min | BB: 49.69 (+5.55s | 10.0%) | Coast Gaurd Blue Dolphins | 06/27/2024 | NOVA Firecracker Classic | |
| 4229 | Georgia Larson | 55.24 | 10 | B Min | BB: 49.69 (+5.55s | 10.0%) | Great Wolf Swim Team | 05/28/2026 | 2026 MN WOLF HUFF N PUFF INVITE | |
| 4230 | Lainey Gregory | 55.25 | 9 | B Min | BB: 49.69 (+5.56s | 10.1%) | Surge Aquatics | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 4231 | Kamdyn Raymond | 55.25 | 10 | B Min | BB: 49.69 (+5.56s | 10.1%) | Pueblo County Swim Team | 07/12/2025 | 2025 Canon City Pentathlon | |
| 4232 | Chloe Lomas | 55.25 | 7 | B Min | BB: 49.69 (+5.56s | 10.1%) | Life Time Swim Team - Central | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 4233 | Lily Warburton | 55.26 | 7 | B Min | BB: 49.69 (+5.57s | 10.1%) | Shawmut Aquatic Club | 06/12/2026 | 2026 NE CS Summer Solstice | |
| 4234 | Rose Boneparth | 55.26 | 10 | B Min | BB: 49.69 (+5.57s | 10.1%) | Portland Porpoise Swim Club | 05/30/2026 | 2026 NE NSSC May Invitational At Colby | |
| 4235 | Emma Bostock | 55.26 | 9 | B Min | BB: 49.69 (+5.57s | 10.1%) | Hurricane Aquatics | 06/06/2026 | 18th Annual LC NPB Summer Kickoff | |
| 4236 | Sutton Douglass | 55.27 | 9 | B Min | BB: 49.69 (+5.58s | 10.1%) | Saint Louis Tsunami Swimming | 05/01/2026 | John Traube Memorial 2026 | |
| 4237 | Auri Torres Ramos | 55.27 | 10 | B Min | BB: 49.69 (+5.58s | 10.1%) | Escualos | 05/01/2026 | 2026 ST AAAA 23rd Annual Cinco De Mayo | |
| 4238 | Avery Joubert | 55.27 | 10 | B Min | BB: 49.69 (+5.58s | 10.1%) | Nitro Swimming | 06/20/2026 | 2026 ST NTRO LC Summer Classic | |
| 4239 | Lively Mitchell | 55.28 | 8 | B Min | BB: 49.69 (+5.59s | 10.1%) | Unattached | 04/18/2026 | 2026 ST NIST Spring Into Long Course | |
| 4240 | Viyana Baghaei | 55.28 | 10 | B Min | BB: 49.69 (+5.59s | 10.1%) | Bay Club Aquatics | 06/06/2026 | 2026 SI JBST SPLASH DASH MAX | |
| 4241 | Madison Vogel | 55.28 | 7 | B Min | BB: 49.69 (+5.59s | 10.1%) | Nova of Virginia | 07/11/2024 | 2024 RAYS Summer Awards | |
| 4242 | Emma Waite | 55.29 | 9 | B Min | BB: 49.69 (+5.60s | 10.1%) | Nation\\\\\\'s Capital Swim Club | 06/05/2026 | HNVR Storm Surge 2026 | |
| 4243 | Rylee Whall | 55.29 | 9 | B Min | BB: 49.69 (+5.60s | 10.1%) | Mighty Marlins Swim Club | 05/28/2026 | 2026 IE VS Apple Capital | |
| 4244 | Cecilia Thomas Garcia | 55.29 | 9 | B Min | BB: 49.69 (+5.60s | 10.1%) | West Suburban YMCA Blue Waves | 06/26/2026 | 2026 NE NSSC June 26 28 MIT Invitational | |
| 4245 | Maggie Welch | 55.30 | 9 | B Min | BB: 49.69 (+5.61s | 10.1%) | North Gate Aquatics Club | 07/12/2025 | LSSC Avon Classic | |
| 4246 | Evangelina Sanchez | 55.30 | 9 | B Min | BB: 49.69 (+5.61s | 10.1%) | El Paso Aqua Posse | 05/16/2026 | 2026 BD SWAT School S Out Summer Bash | |
| 4247 | Cameron Small | 55.30 | 10 | B Min | BB: 49.69 (+5.61s | 10.1%) | Germantown Swim Team | 05/29/2026 | 2026 Spring Invitational | |
| 4248 | Hartlee Goff | 55.31 | 8 | B Min | BB: 49.69 (+5.62s | 10.2%) | Foothills Swim Team | 06/26/2026 | 2026 CO Zone 2 District Meet AAC | |
| 4249 | Stephanie Wang | 55.31 | 9 | B Min | BB: 49.69 (+5.62s | 10.2%) | Seattle Metropolitan Aquatic C | 06/27/2025 | 2025 PN SMAC Summer Classic Invitational | |
| 4250 | Phoebe Greene | 55.31 | 8 | B Min | BB: 49.69 (+5.62s | 10.2%) | Marlins Of Raleigh | 06/13/2026 | 2026 MOR Liberty 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.