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 | |
|---|---|---|---|---|---|---|---|---|---|
| 601 | Grace Colson | 48.64 | 10 | BB Min | A: 43.59 (+5.05s | 10.4%) | Hudson Explorer Aquatic | 06/12/2025 | Holtrey Summer Classic | |
| 602 | Zoe Martinez | 48.67 | 10 | BB Min | A: 43.59 (+5.08s | 10.4%) | Life Time Colorado Swim Club | 06/27/2025 | 2025 CO Zone 2 VMAC Meet | |
| 603 | Evie Kwok | 48.67 | 9 | BB Min | A: 43.59 (+5.08s | 10.4%) | California Dolphins Swim Team | 04/12/2025 | PC BSW LCM C B BB+ Meet | |
| 604 | Kathy Li | 48.69 | 10 | BB Min | A: 43.59 (+5.10s | 10.5%) | Maverick Aquatics | 06/19/2025 | 2025 CO Grand Junction Invitational | |
| 605 | Carleigh Mc Crea | 48.70 | 10 | BB Min | A: 43.59 (+5.11s | 10.5%) | Indian River Aquatics | 06/07/2025 | 2025 TCA Aaron Vaughn Memorial | |
| 606 | Madison Liu | 48.70 | 10 | BB Min | A: 43.59 (+5.11s | 10.5%) | Trident Aquatic Club | 08/06/2025 | 2025 Summer Elite Showcase | |
| 607 | Bella Lopez | 48.70 | 10 | BB Min | A: 43.59 (+5.11s | 10.5%) | Tri-city Channel Cats | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
| 608 | Ruby Oshitelu | 48.71 | 10 | BB Min | A: 43.59 (+5.12s | 10.5%) | Hillsboro Swim Team | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 609 | Camilla Acharte | 48.72 | 10 | BB Min | A: 43.59 (+5.13s | 10.5%) | Cottonwood Heights Aquatics | 05/30/2025 | 2025 UT CHAT Non Qualifier | |
| 610 | Mia Xu | 48.72 | 9 | BB Min | A: 43.59 (+5.13s | 10.5%) | St. Lawrence Swim Team | 06/27/2025 | Valley Splash | |
| 611 | Hadley Phung | 48.73 | 10 | BB Min | A: 43.59 (+5.14s | 10.5%) | Edina Swim Club | 07/18/2025 | 2025 MN MAN Minnesota Regional Championship | |
| 612 | Adalyn Walsh | 48.73 | 10 | BB Min | A: 43.59 (+5.14s | 10.5%) | South Metro Storm | 05/16/2025 | 2025 MN STRM Spring Startup | |
| 613 | Avery Eash | 48.74 | 10 | BB Min | A: 43.59 (+5.15s | 10.6%) | Palo Alto Stanford Aquatics | 05/30/2025 | VJO S Tuffy Williams Summer Kickoff Classic | |
| 614 | Willow Herod | 48.75 | 9 | BB Min | A: 43.59 (+5.16s | 10.6%) | Patriot Aquatics | 05/16/2025 | 2025 PA Long Course Invite | |
| 615 | Elise Qiu | 48.76 | 10 | BB Min | A: 43.59 (+5.17s | 10.6%) | Blue Wave Swimming | 06/06/2025 | 2025 TAMPA BAY SWIM CLASSIC | |
| 616 | Melody Chen | 48.77 | 10 | BB Min | A: 43.59 (+5.18s | 10.6%) | DeAnza Cupertino Aquatics | 05/16/2025 | 2025 DACA LC CBA Meet | |
| 617 | Alyssa Nakajima | 48.77 | 8 | BB Min | A: 43.59 (+5.18s | 10.6%) | Tualatin Hills Swim Club | 07/12/2025 | 2025 OSI Arena Summer LC 10 U Championships | |
| 618 | Nika Vujovic | 48.77 | 9 | BB Min | A: 43.59 (+5.18s | 10.6%) | Beach Cities Swimming | 06/12/2025 | 2025 SCS June AG Invite @ La Mirada Armada | |
| 619 | Saanvi Mopuri | 48.77 | 10 | BB Min | A: 43.59 (+5.18s | 10.6%) | California Dolphins Swim Team | 06/07/2025 | 2025 06 07 CDST LC C B BB+ Meet | |
| 620 | Lianna Shubin | 48.77 | 10 | BB Min | A: 43.59 (+5.18s | 10.6%) | Bellevue Club Swim Team | 05/02/2025 | 2025 PN BC May Flowers | |
| 621 | Otoha Kojima | 48.77 | 9 | BB Min | A: 43.59 (+5.18s | 10.6%) | Aquawolves Swimming | 05/30/2025 | 2025 CO Barracuda Summer Sizzler Invite | |
| 622 | Alice Schug | 48.79 | 10 | BB Min | A: 43.59 (+5.20s | 10.7%) | Edina Swim Club | 07/18/2025 | 2025 MN MAN Minnesota Regional Championship | |
| 623 | Michaela Smurdon | 48.81 | 10 | BB Min | A: 43.59 (+5.22s | 10.7%) | Hydro Swim Club | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 624 | Ameena Makhzoumi | 48.81 | 10 | BB Min | A: 43.59 (+5.22s | 10.7%) | Ladera Oaks | 06/06/2025 | 2025 DACA LC CBA+ Meet | |
| 625 | Areerada Jirathramakul | 48.81 | 10 | BB Min | A: 43.59 (+5.22s | 10.7%) | California Dolphins Swim Team | 05/10/2025 | PC SRVA LCM C B BB+ | |
| 626 | Everly Hasbrouck | 48.84 | 8 | BB Min | A: 43.59 (+5.25s | 10.7%) | Nova of Virginia | 07/11/2024 | 2024 RAYS Summer Awards | |
| 627 | Zoe Wang | 48.84 | 9 | BB Min | A: 43.59 (+5.25s | 10.7%) | Hydro Swim Club | 06/20/2025 | 2025 Planet Swim Summer Championships | |
| 628 | Izabella Jaynes | 48.87 | 9 | BB Min | A: 43.59 (+5.28s | 10.8%) | Univ. of Denver Hilltoppers | 07/12/2025 | 2025 CO TOPS SBL Summer Sizzler | |
| 629 | Eliza Hydukovich | 48.89 | 9 | BB Min | A: 43.59 (+5.30s | 10.8%) | North Star Swim Team | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 630 | Gioia Castaldo | 48.89 | 10 | BB Min | A: 43.59 (+5.30s | 10.8%) | Fenix Swim Club | 01/17/2026 | 2026 Azura Winter Open LCM Invite | |
| 631 | Kyra Blunck | 48.89 | 10 | BB Min | A: 43.59 (+5.30s | 10.8%) | Austin Swim Club | 05/31/2025 | 2025 ST ASC June Bug | |
| 632 | Ellen Highland | 48.91 | 10 | BB Min | A: 43.59 (+5.32s | 10.9%) | Unattached | 06/08/2025 | 2025 ST TXLA 14 U Sprint Cup | |
| 633 | Aaradhya Bharadwaj | 48.92 | 9 | BB Min | A: 43.59 (+5.33s | 10.9%) | Wave Aquatics | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 634 | Tanvika Kumar | 48.92 | 10 | BB Min | A: 43.59 (+5.33s | 10.9%) | Front Range Barracudas | 07/11/2025 | 2025 CO NCS Gold District Championships | |
| 635 | Anika Muliadikara | 48.92 | 10 | BB Min | A: 43.59 (+5.33s | 10.9%) | Highlands Ranch Aquatics | 05/16/2025 | 2025 CO NJ Ken Kelley Invite | |
| 636 | Katelyn DeGroff | 48.93 | 10 | BB Min | A: 43.59 (+5.34s | 10.9%) | United Swim Club | 07/10/2025 | 2025 FL Summer Age Group Championships | |
| 637 | Amelia Cook | 48.93 | 10 | BB Min | A: 43.59 (+5.34s | 10.9%) | Monticello Swim Club | 07/18/2025 | 2025 MN TUNA Minnesota Regional Championship | |
| 638 | Katelyn Rasavongseuk | 48.96 | 9 | BB Min | A: 43.59 (+5.37s | 11.0%) | Planet Swim Aquatics | 04/05/2025 | EAJ Spring Into Long Course | |
| 639 | Alexia Afanasyeva | 48.97 | 10 | BB Min | A: 43.59 (+5.38s | 11.0%) | Hillsboro Swim Team | 05/02/2025 | 2025 THSC Spring Invitational | |
| 640 | Gina Le | 48.97 | 9 | BB Min | A: 43.59 (+5.38s | 11.0%) | Sporting Jax Aquatic Club | 07/25/2025 | 2025 Area 1 LCM Championships | |
| 641 | Francesca Martella | 48.98 | 10 | BB Min | A: 43.59 (+5.39s | 11.0%) | T2 Aquatics | 05/23/2025 | 2025 T2 Aquatics Norris Foundation LC Meet | |
| 642 | Paige Larkin | 48.98 | 10 | BB Min | A: 43.59 (+5.39s | 11.0%) | Bellevue Club Swim Team | 07/18/2025 | 2025 PN Chinook Age Group Seattle Open | |
| 643 | Georgia DuBois | 48.99 | 10 | BB Min | A: 43.59 (+5.40s | 11.0%) | Gold\\\\\\'s Aquatics Club (Camas) | 08/02/2025 | GACC 2025 End Of Season Meet | |
| 644 | Anika Paranjape | 48.99 | 10 | BB Min | A: 43.59 (+5.40s | 11.0%) | West Coast Aquatics | 05/29/2025 | 2025 IE VS Apple Capital | |
| 645 | Catherine Ebbeling | 49.00 | 10 | BB Min | A: 43.59 (+5.41s | 11.0%) | YMCA of Austin Swim Alliance | 06/27/2025 | 2025 ST HPAC Long Course STX Championship | |
| 646 | Kara Long | 49.01 | 9 | BB Min | A: 43.59 (+5.42s | 11.1%) | Firestone Akron Swim Team | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 647 | Alyssa Yu | 49.02 | 9 | BB Min | A: 43.59 (+5.43s | 11.1%) | Waterloo Swimming | 05/31/2025 | 2025 ST ASC June Bug | |
| 648 | Julia LaDuc | 49.02 | 10 | BB Min | A: 43.59 (+5.43s | 11.1%) | Longhorn Aquatics | 04/05/2025 | 2025 ST TXLA 10 U Long Course Kick Off | |
| 649 | Kelly Zhang | 49.04 | 10 | BB Min | A: 43.59 (+5.45s | 11.1%) | Bellevue Club Swim Team | 05/29/2025 | 2025 IE VS Apple Capital | |
| 650 | Jade Hartley | 49.04 | 8 | BB Min | A: 43.59 (+5.45s | 11.1%) | Coeur D\\\\\\'alene Area Swim Team | 07/25/2025 | 2025 IES LC CHAMPIONSHIPS | |
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.