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 | |
|---|---|---|---|---|---|---|---|---|---|
| 3851 | Mira Ackerman | 54.05 | 9 | B Min | BB: 49.69 (+4.36s | 8.1%) | Saint Petersburg Aquatics | 05/15/2026 | 2026 SAINT PETE S 2nd LONG COURSE MEET | |
| 3852 | Jolina Jose | 54.05 | 10 | B Min | BB: 49.69 (+4.36s | 8.1%) | Morganton Swim Team | 06/23/2026 | WCSA Summer Meet 2 @ MSC | |
| 3853 | Ivy McCrea | 54.06 | 9 | B Min | BB: 49.69 (+4.37s | 8.1%) | Vallejo Aquatic Club | 06/20/2025 | Reno Aquatic Club Gamble | |
| 3854 | Kaia Zeng | 54.07 | 7 | B Min | BB: 49.69 (+4.38s | 8.1%) | Sailfish | 06/05/2026 | 2026 ST SRG Arena Surge Shark Sizzler | |
| 3855 | Quinn Weaver | 54.07 | 9 | B Min | BB: 49.69 (+4.38s | 8.1%) | Lone Star Aquatic Club | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 3856 | Leonie Kostowicz | 54.08 | 7 | B Min | BB: 49.69 (+4.39s | 8.1%) | Gulliver Swim Club | 05/01/2026 | Jesse Vasallo Swimming Invitational | |
| 3857 | Ally Friendshuh | 54.08 | 10 | B Min | BB: 49.69 (+4.39s | 8.1%) | South Metro Storm | 05/08/2026 | 2026 MN STRM Spring Startup | |
| 3858 | Shay Reinke | 54.08 | 8 | B Min | BB: 49.69 (+4.39s | 8.1%) | Lakeside Swim Team | 07/09/2026 | 46th Annual Seahawk Invitational | |
| 3859 | 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 | |
| 3860 | Emma Scanlon | 54.09 | 8 | B Min | BB: 49.69 (+4.40s | 8.1%) | Tuna Swim Club | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 3861 | Monroe Peterson | 54.09 | 9 | B Min | BB: 49.69 (+4.40s | 8.1%) | La Crosse Area Family YMCA Swi | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 3862 | 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 | |
| 3863 | Morgana Montero | 54.09 | 9 | B Min | BB: 49.69 (+4.40s | 8.1%) | Apex Swim Club | 06/26/2026 | 2026 NE SUN Summer Solstice | |
| 3864 | Sameena Kanagala | 54.10 | 10 | B Min | BB: 49.69 (+4.41s | 8.2%) | Dothan Dolphins Swim Team | 04/11/2026 | CAT5 LC Open 2026 | |
| 3865 | Addison Koppes | 54.11 | 8 | B Min | BB: 49.69 (+4.42s | 8.2%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 3866 | 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 | |
| 3867 | Luam Haile | 54.12 | 8 | B Min | BB: 49.69 (+4.43s | 8.2%) | Swimchester Sailfish | 05/15/2026 | Kentucky Aquatics Derby Classic | |
| 3868 | 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 | |
| 3869 | Hazel Towns | 54.12 | 9 | B Min | BB: 49.69 (+4.43s | 8.2%) | Olympus Aquatics | 06/06/2025 | Speed Lake City 2025 | |
| 3870 | Violet Rush | 54.12 | 9 | B Min | BB: 49.69 (+4.43s | 8.2%) | Sioux Falls Swim Team | 06/26/2026 | 2026 SD SFST Summer Surge Classic | |
| 3871 | Karla Stanila | 54.12 | 10 | B Min | BB: 49.69 (+4.43s | 8.2%) | Lone Star Aquatic Club | 04/10/2026 | 2026 ST LSAC 6th Annual Atomic Fest | |
| 3872 | Eva Vanderheyden | 54.14 | 10 | B Min | BB: 49.69 (+4.45s | 8.2%) | Great Wolf Swim Team | 06/07/2025 | 2025 MN STRM Summer Slam | |
| 3873 | Celia Tentis | 54.14 | 10 | B Min | BB: 49.69 (+4.45s | 8.2%) | Rochester Swim Club | 05/30/2026 | 2026 MN RSC Summer Jam | |
| 3874 | 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 | |
| 3875 | Rebecca Lowther | 54.15 | 9 | B Min | BB: 49.69 (+4.46s | 8.2%) | YMCA of the Triangle Area Swim | 06/12/2026 | 2026 SwimRVA Summer Invitational | |
| 3876 | Georgina Avnit | 54.16 | 10 | B Min | BB: 49.69 (+4.47s | 8.3%) | Nitro Swimming | 04/26/2025 | 2025 ST NTRO Splashing Into Long Course | |
| 3877 | 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 | |
| 3878 | Savannah Killeen | 54.16 | 9 | B Min | BB: 49.69 (+4.47s | 8.3%) | Amherst Tritons Swim Team | 06/20/2026 | 2026 NE NSSC Invitational Springfield College | |
| 3879 | Ruby Nash | 54.16 | 8 | B Min | BB: 49.69 (+4.47s | 8.3%) | Linn-Mar Swim Team | 06/26/2026 | 88th CSP Summer Invitational | |
| 3880 | 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 | |
| 3881 | Mila Mulcahy | 54.17 | 10 | B Min | BB: 49.69 (+4.48s | 8.3%) | North Suburban Aquatic Club | 06/05/2026 | 2026 MN NSAC Summer Invite | |
| 3882 | Collette Gabreski | 54.17 | 10 | B Min | BB: 49.69 (+4.48s | 8.3%) | Salida Cyclones | 07/12/2025 | 2025 Canon City Pentathlon | |
| 3883 | Blake Selph | 54.17 | 9 | B Min | BB: 49.69 (+4.48s | 8.3%) | Nashville Aquatic Club | 05/16/2026 | NAC LC May Classic | |
| 3884 | Josephine Cormier | 54.17 | 9 | B Min | BB: 49.69 (+4.48s | 8.3%) | Crimson Aquatics | 05/16/2026 | 2026 NE CS Spring Fever | |
| 3885 | Ava Rybacki | 54.17 | 10 | B Min | BB: 49.69 (+4.48s | 8.3%) | Huntsville Swim Association | 06/26/2026 | 2026 HSA June Invitational | |
| 3886 | Aurelia Varney-Washington | 54.18 | 8 | B Min | BB: 49.69 (+4.49s | 8.3%) | South Bay Aquatics | 06/06/2026 | 2026 SI SOL Splash And Dash Max Jun 6 7 | |
| 3887 | Alyssa Alonso | 54.18 | 8 | B Min | BB: 49.69 (+4.49s | 8.3%) | South Florida Aquatic Club | 05/15/2026 | 2026 Gulliver LCM Summer Classic | |
| 3888 | Evi Qi | 54.19 | 9 | B Min | BB: 49.69 (+4.50s | 8.3%) | Issaquah Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 3889 | Sawyer Hill | 54.19 | 9 | B Min | BB: 49.69 (+4.50s | 8.3%) | Barracuda Swim Club of Northea | 06/13/2026 | 2026 BSC Model City Invitational | |
| 3890 | Braelynn Wagoner | 54.20 | 9 | B Min | BB: 49.69 (+4.51s | 8.3%) | San Gabriel Aquatics | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 3891 | Isla Riley | 54.20 | 9 | B Min | BB: 49.69 (+4.51s | 8.3%) | Great Wolf Swim Team | 05/10/2025 | 2025 MN HURR LC Spring Opener | |
| 3892 | Saanjhi Sharma | 54.20 | 9 | B Min | BB: 49.69 (+4.51s | 8.3%) | ElitSwim Club | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 3893 | Madelyn Curtis | 54.20 | 8 | B Min | BB: 49.69 (+4.51s | 8.3%) | Velocity Aquatics | 06/26/2026 | 2026 MN PRNH Summer Chomp | |
| 3894 | Ameya Hodigere | 54.20 | 10 | B Min | BB: 49.69 (+4.51s | 8.3%) | Rush | 04/05/2025 | 2025 ST TXLA 10 U Long Course Kick Off | |
| 3895 | Caroline Czisch | 54.21 | 9 | B Min | BB: 49.69 (+4.52s | 8.3%) | Alto Swim Club | 06/26/2026 | SUNN Silicon Valley CBA+ LCM | |
| 3896 | Clara Gorman | 54.21 | 9 | B Min | BB: 49.69 (+4.52s | 8.3%) | Castle Rock Swimming | 06/05/2026 | 2026 CO FAST June Bonanza Open | |
| 3897 | Aspen Nelson | 54.22 | 9 | B Min | BB: 49.69 (+4.53s | 8.4%) | Sioux Falls Swim Team | 05/08/2026 | 2026 SD SFST Ready For Long Course Meet | |
| 3898 | Willa Matacale | 54.22 | 9 | B Min | BB: 49.69 (+4.53s | 8.4%) | Excel Aquatics | 06/04/2026 | 2026 Beaman Toyota Firecracker Invite | |
| 3899 | Evelyn Xu | 54.23 | 10 | B Min | BB: 49.69 (+4.54s | 8.4%) | Pacific Dragons Swim Team | 05/16/2025 | 2025 PN IST Sockeye Springtime Madness | |
| 3900 | Kayla DuBose | 54.23 | 10 | B Min | BB: 49.69 (+4.54s | 8.4%) | YMCA of the Triangle Area Swim | 04/24/2026 | 2026 RSA Warm Up To LC Copied 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.