USA Girls 10 & under - 50 Y 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 | |
|---|---|---|---|---|---|---|---|---|---|
| 5551 | Marilee Najarro | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Stingrays Swim Team | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 5552 | Rishona Yoo | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Olympic Cascade Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 5553 | Chloe Nguyen | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Tac Titans | 12/19/2025 | 2025 TAC TITANS Jingle Bells Meet | |
| 5554 | Hazel Calderon | 45.15 | 9 | B Min | BB: 43.29 (+1.86s | 4.1%) | Westlake Aquatic Facility | 01/10/2026 | 2026 ST AHAC B Champs South Copied | |
| 5555 | Ellie Perry | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Long Island Aquatic Club | 03/27/2026 | 2026 MR Bronze Championship South LIE | |
| 5556 | Keira Hunter | 45.15 | 8 | B Min | BB: 43.29 (+1.86s | 4.1%) | Sporting Jax Aquatic Club | 11/15/2025 | EAJ Fall Harvest 2025 | |
| 5557 | Harper Hock | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Laker Swim | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 5558 | Evelyn Wang | 45.15 | 10 | B Min | BB: 43.29 (+1.86s | 4.1%) | Wave Aquatics | 01/24/2026 | 2026 PN WAVE Winter Invitational Approved | |
| 5559 | Emilia Tsang | 45.15 | 9 | B Min | BB: 43.29 (+1.86s | 4.1%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 5560 | Amelia Martingale | 45.16 | 8 | B Min | BB: 43.29 (+1.87s | 4.1%) | West Islip Swim Club | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 5561 | Juliette Cameron | 45.16 | 10 | B Min | BB: 43.29 (+1.87s | 4.1%) | Swim Fort Lauderdale | 02/14/2026 | Lightning Valentines BC Invite | |
| 5562 | Vivian Hite | 45.16 | 9 | B Min | BB: 43.29 (+1.87s | 4.1%) | Shoals Aquatic Club | 11/07/2025 | MSA Veterans Day Invitational | |
| 5563 | Leilani Smith | 45.16 | 10 | B Min | BB: 43.29 (+1.87s | 4.1%) | Tide Swimming | 01/09/2026 | 2026 757swim Splash And Dash | |
| 5564 | Johanna Hong | 45.16 | 10 | B Min | BB: 43.29 (+1.87s | 4.1%) | Merritt Athletic Swimming | 12/21/2025 | The Grinch Stole My Times (9 O BB Slowe) 2025 | |
| 5565 | Reghan Devaney | 45.16 | 9 | B Min | BB: 43.29 (+1.87s | 4.1%) | Crimson Aquatics | 03/13/2026 | 2026 NE CRA End Of Season March Invite | |
| 5566 | Hannah Bigelow | 45.16 | 9 | B Min | BB: 43.29 (+1.87s | 4.1%) | Middlesex Swim Club | 03/13/2026 | 2026 Shawmut NE Cup Championship | |
| 5567 | Veronica Devaney | 45.16 | 9 | B Min | BB: 43.29 (+1.87s | 4.1%) | Newport County YMCA Wahoos | 02/01/2026 | 2026 NE NCYW 36th Annual YMCA Pentathlon | |
| 5568 | Darcy Brown | 45.16 | 9 | B Min | BB: 43.29 (+1.87s | 4.1%) | Silver Falls Rapids YMCA | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 5569 | Santana Velasquez | 45.17 | 10 | B Min | BB: 43.29 (+1.88s | 4.2%) | Las Animas Trofins | 07/25/2025 | 2025 CO SECAL Championships | |
| 5570 | Stella Rush | 45.17 | 9 | B Min | BB: 43.29 (+1.88s | 4.2%) | Gsa | 11/15/2025 | 2025 John Dewey Invitational | |
| 5571 | Lilah Boone | 45.17 | 7 | B Min | BB: 43.29 (+1.88s | 4.2%) | Evergreen Hurricanes | 01/31/2026 | 2026 CO Anthony Boettcher Nate Rothman Memori | |
| 5572 | Molly Bogdanovitch | 45.17 | 9 | B Min | BB: 43.29 (+1.88s | 4.2%) | Kona Dolphins Swim Club | 02/07/2026 | BIG ISLAND SWIMMING @ KCAC | |
| 5573 | Layah Jiang | 45.17 | 8 | B Min | BB: 43.29 (+1.88s | 4.2%) | Long Island Aquatic Club | 11/16/2025 | 2025 MR LIAC Fall Festival Invitational | |
| 5574 | Wrenly Wright | 45.18 | 9 | B Min | BB: 43.29 (+1.89s | 4.2%) | SlipStream Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 5575 | Ella Schiffmann | 45.18 | 8 | B Min | BB: 43.29 (+1.89s | 4.2%) | FireFish Swim Team | 01/16/2026 | 2026 NE CS Bronze Championships | |
| 5576 | Aubreigh Broome | 45.18 | 8 | B Min | BB: 43.29 (+1.89s | 4.2%) | Southwest Stars Swim Club | 02/28/2026 | 2026 Spring Area 2 Championships | |
| 5577 | Abigail Yeh | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | Life Time Fitness New York Swi | 01/16/2026 | 2026 MR NFS 43rd Annual Dr MLK Jr Invite | |
| 5578 | Kendall Bonner | 45.18 | 8 | B Min | BB: 43.29 (+1.89s | 4.2%) | Piedmont Aquatic Club | 12/12/2025 | 2025 NC QCD Holiday Invite | |
| 5579 | Emzley Voshall-Ripsom | 45.18 | 8 | B Min | BB: 43.29 (+1.89s | 4.2%) | Team Vortex | 02/14/2026 | 2026 CO NCS 10 U Winter Spectacular | |
| 5580 | Ella Westphal | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | South East Metro Sharks | 02/27/2026 | 2026 MN WEST Minnesota Regional Championship | |
| 5581 | Abigail Forster | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | Terrapins Swim Team | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 5582 | Jasmine Zhang | 45.18 | 8 | B Min | BB: 43.29 (+1.89s | 4.2%) | California Dolphins Swim Team | 10/18/2025 | PC CDST SC C B BB+ | |
| 5583 | Vanessa Nguyen | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | Y in Central Maryland Blue Cra | 12/05/2025 | 2025 Christmas Championships | |
| 5584 | Katherine Linton | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | Williamsburg Aquatic Club | 10/11/2025 | 2025 WAC Start Up Classic | |
| 5585 | Mathilda Zilber | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | Pine Crest Swimming | 11/01/2025 | Piranhas Turkey Classic 2025 | |
| 5586 | Miriam Mustafa | 45.18 | 10 | B Min | BB: 43.29 (+1.89s | 4.2%) | YMCA of the North Shore Sharks | 02/07/2026 | 2026 NE YNS Last Chance Qualifier | |
| 5587 | Ryleigh Bauer-Dobias | 45.18 | 9 | B Min | BB: 43.29 (+1.89s | 4.2%) | Hauppauge Swimming | 12/11/2025 | 2025 MR HAUP Eagle Invitational | |
| 5588 | Mia Brumaru | 45.18 | 7 | B Min | BB: 43.29 (+1.89s | 4.2%) | Olympic Cascade Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div1 Approved | |
| 5589 | Zoe Luo | 45.19 | 9 | B Min | BB: 43.29 (+1.90s | 4.2%) | Quicksilver Swimming | 02/07/2026 | Valley Splash Short Course C B A Meet | |
| 5590 | Orla Edlund | 45.19 | 9 | B Min | BB: 43.29 (+1.90s | 4.2%) | South East Metro Sharks | 02/27/2026 | 2026 MN WEST Minnesota Regional Championship | |
| 5591 | Kaylee Lopez | 45.19 | 10 | B Min | BB: 43.29 (+1.90s | 4.2%) | Southwest Stars Swim Club | 10/18/2025 | 2025 SLAC IMX Challenge Invitational | |
| 5592 | Sydney Juarez | 45.19 | 9 | B Min | BB: 43.29 (+1.90s | 4.2%) | Nation\\\\\\'s Capital Swim Club | 02/27/2026 | 2026 Cherry Blossom Champs | |
| 5593 | Hana Rosekrans | 45.19 | 10 | B Min | BB: 43.29 (+1.90s | 4.2%) | Flatiron Athletic Club | 02/08/2025 | 2025 CO NCS 10 U Winter Spectacular | |
| 5594 | Whittaker Gold | 45.19 | 8 | B Min | BB: 43.29 (+1.90s | 4.2%) | Bolles School Sharks | 01/16/2026 | 2026 Pentathlon | |
| 5595 | Riley Suksumrit | 45.19 | 9 | B Min | BB: 43.29 (+1.90s | 4.2%) | North Coast Aquatics | 02/21/2026 | 2026 SI MRA Age Group Champs Max Meet | |
| 5596 | Nicole Sanz | 45.19 | 10 | B Min | BB: 43.29 (+1.90s | 4.2%) | South Florida Aquatic Club | 11/21/2025 | 2025 SoFlo Last Chance And Holiday Classic | |
| 5597 | Yezi Li | 45.20 | 10 | B Min | BB: 43.29 (+1.91s | 4.2%) | Pacific Dragons Swim Team | 09/28/2024 | 2024 PN IST Sockeye Sprints | |
| 5598 | Betti Luko | 45.20 | 10 | B Min | BB: 43.29 (+1.91s | 4.2%) | Swim Excellence Academy | 12/15/2024 | 2024 SI CAST 14 Under Mini Meet Dec 15 | |
| 5599 | Zoe Terrazas-Cufino | 45.20 | 9 | B Min | BB: 43.29 (+1.91s | 4.2%) | Cottonwood Heights Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 5600 | Josephine La | 45.20 | 9 | B Min | BB: 43.29 (+1.91s | 4.2%) | Daly City Dolphins | 03/28/2026 | PSL March CBA+ | |
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.