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 | |
|---|---|---|---|---|---|---|---|---|---|
| 8001 | Maggie Welch | 48.16 | 9 | B Min | BB: 43.29 (+4.87s | 10.1%) | North Gate Aquatics Club | 01/17/2026 | Club Mountaineer January Age Group Winter Spl | |
| 8002 | Margaret Finn | 48.16 | 9 | B Min | BB: 43.29 (+4.87s | 10.1%) | YMCA Presidio Aquatics | 11/15/2025 | NVST Swimming Into Fall 2025 | |
| 8003 | Phoebe Bowers | 48.16 | 9 | B Min | BB: 43.29 (+4.87s | 10.1%) | Northfield Swim Club | 11/01/2025 | 2025 MN NOR Champ Belt Sprint Spec (Fall) | |
| 8004 | Eleanor O'Neill | 48.16 | 10 | B Min | BB: 43.29 (+4.87s | 10.1%) | Webbs Tornadoes Swim Team | 01/16/2026 | 2026 NE CS Bronze Championships | |
| 8005 | Poppy Sroka | 48.16 | 10 | B Min | BB: 43.29 (+4.87s | 10.1%) | Sleepy Hollow | 11/10/2024 | Fall Jamboree Invitational 2024 | |
| 8006 | Jennifer Breit | 48.16 | 9 | B Min | BB: 43.29 (+4.87s | 10.1%) | West Express Swim Team | 02/07/2026 | 2026 MN WEST EXPRESS LAST CHANCE MEET | |
| 8007 | Margaret Stinnett | 48.16 | 10 | B Min | BB: 43.29 (+4.87s | 10.1%) | Baylor Swim Club | 09/20/2025 | 2025 Fall Kickoff Classic Meet Copied | |
| 8008 | Sarina Tharakan | 48.16 | 10 | B Min | BB: 43.29 (+4.87s | 10.1%) | South Lyon Aquatics | 01/16/2026 | SLA Arctic Blast 2026 | |
| 8009 | Lyla Sidney | 48.16 | 8 | B Min | BB: 43.29 (+4.87s | 10.1%) | Marlins Of Raleigh | 10/24/2025 | 2025 MOR Kick Off | |
| 8010 | Cali Smith | 48.16 | 10 | B Min | BB: 43.29 (+4.87s | 10.1%) | Ocean Pines Swim Team | 03/21/2026 | 2026 Maryland 9 10 B Championship Meet | |
| 8011 | Ludovica D'Amelj | 48.16 | 9 | B Min | BB: 43.29 (+4.87s | 10.1%) | Nation\\\\\\'s Capital Swim Club | 02/13/2026 | 2026 ASA President S Day Classic | |
| 8012 | Eliza Vavrichek | 48.17 | 8 | B Min | BB: 43.29 (+4.88s | 10.1%) | Olympic Cascade Aquatics | 10/18/2025 | 2025 PN VAST Fall Classic | |
| 8013 | Isabelle Marquez | 48.17 | 10 | B Min | BB: 43.29 (+4.88s | 10.1%) | YMCA OF Western North Carolina | 01/17/2026 | 2026 AJCC Snowball Ramble Meet | |
| 8014 | Isla Buehler | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | YMCA of the Triangle Area Swim | 01/17/2026 | 2026 YBAC Blizzard Invitational | |
| 8015 | Liv Wilhelmsen | 48.17 | 10 | B Min | BB: 43.29 (+4.88s | 10.1%) | South Davis Aquatics Team | 02/22/2025 | Time Trial Feb 22 SDAT | |
| 8016 | Miabela Swanson | 48.17 | 8 | B Min | BB: 43.29 (+4.88s | 10.1%) | Pompano Beach Piranhas | 02/06/2026 | Friendship Meet 2026 | |
| 8017 | Maggie Katzman | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | Jcc Sea Serpents | 01/16/2026 | 2026 NE CRIM Bronze Championship | |
| 8018 | Maria Snow | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | Jcc Jellyfish Club | 11/07/2024 | 2024 OA Thanksgiving Turkey Meet | |
| 8019 | Mila Pender | 48.17 | 8 | B Min | BB: 43.29 (+4.88s | 10.1%) | Nova of Virginia | 10/04/2025 | NOVA 12 Under Kick Off Copied | |
| 8020 | Madeline Marante | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | North Palm Beach Swim Club | 11/21/2025 | 2025 NPB Turkey Invite | |
| 8021 | Charlotte Hursley | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 12/06/2025 | SLA Holiday Blast | |
| 8022 | Harper Durrant | 48.17 | 9 | B Min | BB: 43.29 (+4.88s | 10.1%) | The Capitol Sea Devils | 01/24/2026 | 2026 SDS Polar Bear Invitational | |
| 8023 | Aria He | 48.17 | 8 | B Min | BB: 43.29 (+4.88s | 10.1%) | Charles River Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 8024 | Sloane Moggach | 48.18 | 10 | B Min | BB: 43.29 (+4.89s | 10.1%) | Swim Streamline at Northampton | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 8025 | Abigail Widrick | 48.18 | 10 | B Min | BB: 43.29 (+4.89s | 10.1%) | Jersey Wahoos | 12/04/2025 | 2025 PV Turkey Claus Showdown | |
| 8026 | Abby Wrixon | 48.18 | 10 | B Min | BB: 43.29 (+4.89s | 10.1%) | Carrollton Bluefins | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 8027 | Lillian Hatchett | 48.18 | 10 | B Min | BB: 43.29 (+4.89s | 10.1%) | Martinsville Marlins | 01/02/2026 | 2026 LY Winter Invitational | |
| 8028 | Imani Grover | 48.18 | 10 | B Min | BB: 43.29 (+4.89s | 10.1%) | Bulldog Aquatic Club | 11/21/2025 | 2025 SST Fall Classic | |
| 8029 | Emma McDougall | 48.18 | 9 | B Min | BB: 43.29 (+4.89s | 10.1%) | Coronado Swim -team Elite | 01/31/2026 | 2026 SBA All Ages NTS Meet | |
| 8030 | Harper Peters | 48.18 | 9 | B Min | BB: 43.29 (+4.89s | 10.1%) | Metro Marlins Swim Team | 02/21/2026 | 2026 MN FOXJ MN Bronze Championship | |
| 8031 | Courtney Carroll | 48.19 | 10 | B Min | BB: 43.29 (+4.90s | 10.2%) | Fort Collins Area Swim Team | 02/08/2025 | 2025 CO NCS 10 U Winter Spectacular | |
| 8032 | Margaret Olson | 48.19 | 10 | B Min | BB: 43.29 (+4.90s | 10.2%) | Westbrook Seals | 10/24/2025 | Boofish Halloween Meet | |
| 8033 | Abigail Gaudet | 48.19 | 9 | B Min | BB: 43.29 (+4.90s | 10.2%) | Anglerfish Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 8034 | Amelie Rutishauser | 48.19 | 9 | B Min | BB: 43.29 (+4.90s | 10.2%) | Empire Swimming | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 8035 | Maya Storck | 48.19 | 8 | B Min | BB: 43.29 (+4.90s | 10.2%) | Asheville Jewish Community Cen | 02/07/2026 | 2026 Swim Your Heart Out | |
| 8036 | Audrey Moore | 48.19 | 8 | B Min | BB: 43.29 (+4.90s | 10.2%) | Aquawolves Swimming | 01/16/2026 | 2026 CO CUDA Classic | |
| 8037 | Juliana Nutzman | 48.19 | 10 | B Min | BB: 43.29 (+4.90s | 10.2%) | First Colony Swim Team, Inc. | 02/21/2025 | 2025 Gulf 12 Under Champs (PACK) | |
| 8038 | Jenna Huff | 48.19 | 10 | B Min | BB: 43.29 (+4.90s | 10.2%) | Lake Erie Silver Dolphins | 02/19/2026 | 2026 OH Cleveland SC Regional Championships | |
| 8039 | Aubrey Eberson | 48.19 | 10 | B Min | BB: 43.29 (+4.90s | 10.2%) | Sporting Jax Aquatic Club | 11/15/2025 | EAJ Fall Harvest 2025 | |
| 8040 | Audrey Liang | 48.19 | 9 | B Min | BB: 43.29 (+4.90s | 10.2%) | Blue Dolfins | 09/27/2025 | 2025 Elizabeth Kazeck Fall Sprint | |
| 8041 | Soledad Rader | 48.19 | 9 | B Min | BB: 43.29 (+4.90s | 10.2%) | Columbia Aquatics Association | 03/21/2026 | 2026 Maryland 9 10 B Championship Meet | |
| 8042 | Anna Nolan | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Houston Bridge Bats | 02/21/2025 | 2025 Gulf 12 Under Champs (DADS) | |
| 8043 | Lyra Helfman | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Cascade Swim Club | 02/01/2026 | 2026 PN CSC February Mini Meet Approved | |
| 8044 | Lillian Petterson | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Edina Swim Club | 01/10/2025 | 2025 MN FOXJ Winter Classic | |
| 8045 | Alara Goker | 48.20 | 9 | B Min | BB: 43.29 (+4.91s | 10.2%) | Life Time Fitness New York Swi | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 8046 | Hope Dargan | 48.20 | 10 | B Min | BB: 43.29 (+4.91s | 10.2%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 8047 | Alder Clayton | 48.21 | 9 | B Min | BB: 43.29 (+4.92s | 10.2%) | College Area Swim Team | 11/08/2025 | HSA All Ages NTS | |
| 8048 | Landry Toney | 48.21 | 8 | B Min | BB: 43.29 (+4.92s | 10.2%) | Barracuda Swim Club of Northea | 02/13/2026 | 2026 SE BAY Region 2 Championships Copied | |
| 8049 | Leila Stevenson | 48.21 | 7 | B Min | BB: 43.29 (+4.92s | 10.2%) | Sarasota Tsunami Swim Team | 02/21/2026 | CCS Last Chance Meet Feb 2026 | |
| 8050 | Jemma Shen | 48.21 | 9 | B Min | BB: 43.29 (+4.92s | 10.2%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
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.