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 | |
|---|---|---|---|---|---|---|---|---|---|
| 551 | Ashley Kail | 46.13 | 9 | BB Min | A: 43.59 (+2.54s | 5.5%) | Unattached | 04/25/2026 | San Ramon Valley Aquatics Long Course C B BB+ | |
| 552 | Nia Liu | 46.13 | 8 | BB Min | A: 43.59 (+2.54s | 5.5%) | Pacific Dragons Swim Team | 05/15/2026 | 2026 PN IST Sockeye Springtime Madness App | |
| 553 | Kensie Polumbus | 46.14 | 10 | BB Min | A: 43.59 (+2.55s | 5.5%) | Denver Swim Academy | 05/16/2026 | 2026 CO Hilltopper Invite | |
| 554 | Thora Chen | 46.14 | 10 | BB Min | A: 43.59 (+2.55s | 5.5%) | Livermore AquaCowboys | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 555 | Mimi Kukkamaa | 46.14 | 10 | BB Min | A: 43.59 (+2.55s | 5.5%) | Jupiter Dragons Swim Team | 05/08/2026 | 2026 Wellington May Long Course Meet | |
| 556 | Annabelle Shi | 46.14 | 9 | BB Min | A: 43.59 (+2.55s | 5.5%) | Los Angeles Swim Club | 06/12/2025 | 2025 CA SCS RAA June Age Group Championships | |
| 557 | Reming Potter | 46.15 | 9 | BB Min | A: 43.59 (+2.56s | 5.5%) | Winning Waters Aquatics Club | 05/15/2026 | 2026 ST SRG LCM Bud Dallmann Memorial | |
| 558 | Eliza Staley | 46.16 | 10 | BB Min | A: 43.59 (+2.57s | 5.6%) | Olympus Aquatics | 07/17/2025 | 2025 UTAGS LC Championships | |
| 559 | Charlotte Zanutto | 46.16 | 10 | BB Min | A: 43.59 (+2.57s | 5.6%) | Burlingame Aquatics | 05/02/2026 | Alto Spring Jam CBA | |
| 560 | Claira Wilson | 46.17 | 9 | BB Min | A: 43.59 (+2.58s | 5.6%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 561 | Morgan Franckowiak-Clear | 46.19 | 10 | BB Min | A: 43.59 (+2.60s | 5.6%) | Great Wolf Swim Team | 05/15/2026 | 2026 MN HURR LC Spring Opener | |
| 562 | Hana Park | 46.19 | 10 | BB Min | A: 43.59 (+2.60s | 5.6%) | Olympus Aquatics | 05/30/2025 | 2025 UT CHAT Non Qualifier | |
| 563 | Nora Waldenmayer | 46.19 | 9 | BB Min | A: 43.59 (+2.60s | 5.6%) | Sporting Jax Aquatic Club | 05/02/2026 | SwimRise IMX IMR Challenge | |
| 564 | Audrey Tong | 46.21 | 9 | BB Min | A: 43.59 (+2.62s | 5.7%) | Asphalt Green Unified Aquatics | 08/06/2025 | 2025 Summer Elite Showcase | |
| 565 | Nora Craggy | 46.23 | 9 | BB Min | A: 43.59 (+2.64s | 5.7%) | Hydro Swim Club | 05/02/2026 | SwimRise IMX IMR Challenge | |
| 566 | Sadie Voellinger | 46.24 | 10 | BB Min | A: 43.59 (+2.65s | 5.7%) | Nocatee Bluetide Swim Team | 04/10/2026 | 2026 April Classic | |
| 567 | Mae Zajacs | 46.25 | 10 | BB Min | A: 43.59 (+2.66s | 5.8%) | Highlands Ranch Aquatics | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 568 | Brooklyn Litteken | 46.27 | 9 | BB Min | A: 43.59 (+2.68s | 5.8%) | VillaSport Swim Team | 04/18/2025 | 2025 MAC LONG COURSE INVITATIONAL | |
| 569 | Elena Angelides | 46.27 | 10 | BB Min | A: 43.59 (+2.68s | 5.8%) | Castle Rock Swimming | 05/15/2026 | 2026 CO NJ Ken Kelley Invite | |
| 570 | Sophia Lukkes | 46.28 | 10 | BB Min | A: 43.59 (+2.69s | 5.8%) | Pierre Swim Team | 07/11/2025 | 2025 SD Long Course State B Swim Meet | |
| 571 | Ava Fisher | 46.29 | 10 | BB Min | A: 43.59 (+2.70s | 5.8%) | Brentwood Seawolves | 04/25/2026 | Brentwood Seawolves Long Course C B BB+ | |
| 572 | Claire Zhang | 46.29 | 10 | BB Min | A: 43.59 (+2.70s | 5.8%) | Wave Aquatics | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 573 | Molly Jeffers | 46.29 | 10 | BB Min | A: 43.59 (+2.70s | 5.8%) | Blazing Barracudas | 07/24/2025 | 2025 LE Age Group And Senior LC Championships | |
| 574 | Presley Peters | 46.32 | 10 | BB Min | A: 43.59 (+2.73s | 5.9%) | Area Tallahassee Aquatic Club | 06/27/2025 | ATAC Long Course | |
| 575 | Alice Gangl | 46.33 | 10 | BB Min | A: 43.59 (+2.74s | 5.9%) | Sarasota Sharks | 05/15/2026 | 2026 Kent B Holdren Memorial Meet | |
| 576 | Avery Lao | 46.33 | 10 | BB Min | A: 43.59 (+2.74s | 5.9%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 577 | Adelaide Johnson | 46.33 | 10 | BB Min | A: 43.59 (+2.74s | 5.9%) | Bolles School Sharks | 04/10/2026 | 2026 April Classic | |
| 578 | Jillian Parkin | 46.33 | 9 | BB Min | A: 43.59 (+2.74s | 5.9%) | Chinook Aquatic Club | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 579 | Baileigh Martin | 46.34 | 9 | BB Min | A: 43.59 (+2.75s | 5.9%) | Northglenn Fusion Swim Club | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 580 | Olivia Diaz-Pease | 46.34 | 10 | BB Min | A: 43.59 (+2.75s | 5.9%) | Santa Clara Swim Club | 05/23/2025 | Zone 1 South May Firecracker 500 | |
| 581 | Nellie Nareedokmai | 46.34 | 10 | BB Min | A: 43.59 (+2.75s | 5.9%) | Jcc Sailfish | 06/12/2025 | Holtrey Summer Classic | |
| 582 | Sandrine Pells-Wehner | 46.36 | 10 | BB Min | A: 43.59 (+2.77s | 6.0%) | Montclair Swim Team | 06/07/2025 | Orinda Aquatics LC C B BB+ Meet | |
| 583 | Eleanor Masson | 46.36 | 10 | BB Min | A: 43.59 (+2.77s | 6.0%) | Old Dominion Aquatic Club | 07/11/2024 | 2024 VSI Regional Summer Awards | |
| 584 | Lillian Dean | 46.38 | 10 | BB Min | A: 43.59 (+2.79s | 6.0%) | Voltage Aquatics | 06/07/2025 | Summer Classics 2025 | |
| 585 | Sierra Carr | 46.38 | 10 | BB Min | A: 43.59 (+2.79s | 6.0%) | Rancho San Dieguito | 07/24/2025 | 2025 SI LC AG CHAMPS | |
| 586 | Rubie Bytwork | 46.38 | 8 | BB Min | A: 43.59 (+2.79s | 6.0%) | Rockford Riptide | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 587 | Charleston Brooks | 46.39 | 10 | BB Min | A: 43.59 (+2.80s | 6.0%) | Hanover Aquatics | 06/22/2024 | 2024 WAC Summer Sizzle Meet | |
| 588 | Hazel Rivers | 46.39 | 10 | BB Min | A: 43.59 (+2.80s | 6.0%) | Foxjets Swim Team | 05/02/2026 | 2026 MN RSC Pentathlon | |
| 589 | Grace Green | 46.40 | 10 | BB Min | A: 43.59 (+2.81s | 6.1%) | Stingray Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 590 | Rylan Garcia | 46.40 | 8 | BB Min | A: 43.59 (+2.81s | 6.1%) | Bellevue Club Swim Team | 05/01/2026 | 2026 PN BC May Flowers Approved | |
| 591 | Amelia Nagle | 46.41 | 10 | BB Min | A: 43.59 (+2.82s | 6.1%) | Planet Swim Aquatics | 05/16/2026 | 2026 PSA May Invite | |
| 592 | Ainsley Reeves | 46.41 | 8 | BB Min | A: 43.59 (+2.82s | 6.1%) | Southwest Stars Swim Club | 05/15/2026 | 2026 PA Long Course Invite | |
| 593 | Caroline Velez | 46.42 | 10 | BB Min | A: 43.59 (+2.83s | 6.1%) | Swim Tampa Aquatics | 05/01/2026 | 2026 WFLA SPRING OPEN | |
| 594 | Judith Sterr | 46.43 | 10 | BB Min | A: 43.59 (+2.84s | 6.1%) | Riptide Swim Team | 04/24/2026 | 2026 CO Steve Drozda LC Shotgun | |
| 595 | Laila Williams | 46.43 | 8 | BB Min | A: 43.59 (+2.84s | 6.1%) | Riptide Swim Team | 04/12/2026 | 2026 CO NJ SBL Pentathlon 12 U | |
| 596 | Addison Burns | 46.43 | 9 | BB Min | A: 43.59 (+2.84s | 6.1%) | Blue Dolfins | 05/15/2026 | 2026 PA Long Course Invite | |
| 597 | Vanessa Pham | 46.44 | 9 | BB Min | A: 43.59 (+2.85s | 6.1%) | Nitro Swimming | 05/10/2026 | 2026 ST TXLA 10 U End Of School Splash | |
| 598 | Grace Xu | 46.45 | 10 | BB Min | A: 43.59 (+2.86s | 6.2%) | Longhorn Aquatics | 04/19/2026 | 2026 ST TXLA 10 U Long Course Kick Off | |
| 599 | Lucy Enger | 46.45 | 9 | BB Min | A: 43.59 (+2.86s | 6.2%) | Tuna Swim Club | 07/23/2025 | 2025 MN NSAC 10 U LC State Championship | |
| 600 | Charlotte Lohser | 46.45 | 9 | BB Min | A: 43.59 (+2.86s | 6.2%) | Unattached | 06/21/2025 | 2025 T2 June Saturday Showcase | |
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.