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 | |
|---|---|---|---|---|---|---|---|---|---|
| 6101 | Sylvia Knysak | 45.52 | 10 | B Min | BB: 43.29 (+2.23s | 4.9%) | Columbia Aquatics Association | 12/21/2025 | The Grinch Stole My Times (9 O BB Slowe) 2025 | |
| 6102 | Quinn Esparza | 45.52 | 10 | B Min | BB: 43.29 (+2.23s | 4.9%) | San Francisco Seals Swim Team | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 6103 | Maya Ust | 45.53 | 9 | B Min | BB: 43.29 (+2.24s | 4.9%) | Swim Fort Lauderdale | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 6104 | Maria Bjerga | 45.53 | 8 | B Min | BB: 43.29 (+2.24s | 4.9%) | All Star Aquatics | 02/13/2026 | 2026 ASA President S Day Classic | |
| 6105 | Piper Martie | 45.53 | 10 | B Min | BB: 43.29 (+2.24s | 4.9%) | Coast Aquatics | 02/13/2026 | 2026 SES Region 4 Championships | |
| 6106 | Ella Stiefel | 45.53 | 10 | B Min | BB: 43.29 (+2.24s | 4.9%) | Mecklenburg Swim Association | 02/07/2026 | MSA IM Tough Meet 2026 | |
| 6107 | Imogen Chubiz | 45.53 | 10 | B Min | BB: 43.29 (+2.24s | 4.9%) | Vandal Aquatic Club | 01/31/2026 | Coug Winter Open | |
| 6108 | Alisha Yang | 45.53 | 8 | B Min | BB: 43.29 (+2.24s | 4.9%) | Flushing YMCA | 01/24/2026 | 2026 MR FLY Fran Schnarr Sprint Pentathlon Me | |
| 6109 | Oakley Wade | 45.53 | 9 | B Min | BB: 43.29 (+2.24s | 4.9%) | Bayside Branch YMCA | 02/28/2026 | 2026 NE KCY A SENECY LEAGUE CHAMPS | |
| 6110 | Harper Mallico | 45.53 | 10 | B Min | BB: 43.29 (+2.24s | 4.9%) | Rowan Aquatic Club - YMCA | 12/05/2025 | 2025 TYDE Winter Championship | |
| 6111 | Darya Mohtashamian | 45.53 | 10 | B Min | BB: 43.29 (+2.24s | 4.9%) | The Fish | 12/12/2025 | 2025 MAKO HOLIDAY INVITATIONAL | |
| 6112 | Adeline Belliveau | 45.53 | 9 | B Min | BB: 43.29 (+2.24s | 4.9%) | Charles River Aquatics | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 6113 | Gwyneth Seidel | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | Aquawolves Swimming | 01/17/2025 | 2025 CO CUDA Classic | |
| 6114 | Alessandra Routh | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | Dads Club Swim Team | 12/20/2024 | 2024 Gulf Fall Champs (ESCA AMBU) | |
| 6115 | Annalise Kors | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | University Place Aquatic Club | 11/02/2025 | 2025 PN UPAC Fall Qual | |
| 6116 | Lucia Jensen | 45.54 | 8 | B Min | BB: 43.29 (+2.25s | 4.9%) | Storm Aquatics | 01/23/2026 | 2026 MR PAC Winter Classic Invitational | |
| 6117 | Prajna Shrestha | 45.54 | 10 | B Min | BB: 43.29 (+2.25s | 4.9%) | Mason Makos Swim Team | 02/07/2026 | 2026 MAKO QUALIFIER | |
| 6118 | Theodora Andrus | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | Coast Gaurd Blue Dolphins | 02/13/2026 | 2026 Southeast District 9 12 Championship | |
| 6119 | Samantha Schroeder | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | MN Flyers Swim Team | 11/01/2025 | 2025 MN NOR Champ Belt Sprint Spec (Fall) | |
| 6120 | Liv Tornquist | 45.54 | 10 | B Min | BB: 43.29 (+2.25s | 4.9%) | Minneapolis Lake Monsters | 02/21/2026 | 2026 MN FOXJ MN Bronze Championship | |
| 6121 | Elliana Shi | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | Oly Swimming | 02/06/2026 | 2026 Michigan Open | |
| 6122 | Emilia Zanetti | 45.54 | 10 | B Min | BB: 43.29 (+2.25s | 4.9%) | Coeur D\\\\\\'alene Area Swim Team | 02/13/2026 | (Pullman) 2026 IES Jr Champs | |
| 6123 | Charley Reinke | 45.54 | 9 | B Min | BB: 43.29 (+2.25s | 4.9%) | Plymouth Canton Cruisers | 01/16/2026 | SLA Arctic Blast 2026 | |
| 6124 | Felicity Karlberg | 45.54 | 10 | B Min | BB: 43.29 (+2.25s | 4.9%) | SlipStream Aquatics | 09/14/2025 | 2025 CO SSA Red Vs Yellow Intra Squad | |
| 6125 | Rebecca Higgins | 45.55 | 9 | B Min | BB: 43.29 (+2.26s | 5.0%) | North Suburban Aquatic Club | 01/09/2026 | 2026 MN Mako Snowflake Splash | |
| 6126 | Jade Eylar | 45.55 | 9 | B Min | BB: 43.29 (+2.26s | 5.0%) | Edge Swim Club | 03/01/2026 | 2026 NE UVAC 14 And Under Pentathlon | |
| 6127 | Madeleine Wallace | 45.55 | 10 | B Min | BB: 43.29 (+2.26s | 5.0%) | Napa Valley Swim Team | 01/31/2026 | 2026 Peggy Ramirez Memorial Z3 Winter Champs | |
| 6128 | Mie Barrientos | 45.55 | 8 | B Min | BB: 43.29 (+2.26s | 5.0%) | Unattached | 04/11/2025 | 2025 Boys Girls Clubs National Swim Champs | |
| 6129 | Keeghan Ricketts | 45.55 | 10 | B Min | BB: 43.29 (+2.26s | 5.0%) | Treasure Coast Aquatics | 02/28/2026 | Spring Area 6 Championships 2026 | |
| 6130 | Arden Moura | 45.55 | 9 | B Min | BB: 43.29 (+2.26s | 5.0%) | Kamehameha Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 6131 | Louisa Weil | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | Brooklyn Stingrays | 02/07/2026 | 2026 MR QNS We Fly High Invitational | |
| 6132 | Harriet Thirolf | 45.56 | 8 | B Min | BB: 43.29 (+2.27s | 5.0%) | Rockville Montgomery Swim Club | 12/06/2025 | 2025 Reindeer Mini Meet | |
| 6133 | Claire Beigh | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | Fairfax Foxes Swimming | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 6134 | Isabella Wiggins | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | Middies Wave Ryders | 02/13/2026 | 39th Black History Swim Meet | |
| 6135 | Lauren Garnier | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | Walnut Creek Aquabears | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 6136 | Camille Cless | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | United Swim Club | 02/06/2026 | 2026 NE CRA Last Chance February Invite | |
| 6137 | Emma Vieri | 45.56 | 10 | B Min | BB: 43.29 (+2.27s | 5.0%) | Winchester Swim Team | 01/10/2026 | 2026 RAYS Jeff Rouse Invitational | |
| 6138 | Aaris Monsalud | 45.56 | 9 | B Min | BB: 43.29 (+2.27s | 5.0%) | California Dolphins Swim Team | 01/31/2026 | Zone 2 Winter Championship Meet | |
| 6139 | Lillian Vincent | 45.56 | 9 | B Min | BB: 43.29 (+2.27s | 5.0%) | Sailfish Aquatics | 11/07/2025 | 2025 Veterans Day Inv Presented By Arena | |
| 6140 | Liya James | 45.57 | 10 | B Min | BB: 43.29 (+2.28s | 5.0%) | Flatiron Athletic Club | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 6141 | Kaleigh Peoples | 45.57 | 10 | B Min | BB: 43.29 (+2.28s | 5.0%) | Swim Birmingham YMCA | 02/06/2026 | 2026 SES Region 3 Champions | |
| 6142 | Aubrey Halpin | 45.57 | 11 | B Min | BB: 43.29 (+2.28s | 5.0%) | Merritt Athletic Swimming | 12/21/2025 | The Grinch Stole My Times (9 O BB Slowe) 2025 | |
| 6143 | Naomi Streib | 45.57 | 8 | B Min | BB: 43.29 (+2.28s | 5.0%) | Edina Swim Club | 02/07/2026 | 2026 MN EDI February Saturday At The Races | |
| 6144 | Alanna LaRocca | 45.57 | 9 | B Min | BB: 43.29 (+2.28s | 5.0%) | Team Vortex | 02/14/2026 | 2026 CO NCS 10 U Winter Spectacular | |
| 6145 | Adalyn Levy | 45.57 | 10 | B Min | BB: 43.29 (+2.28s | 5.0%) | Mason Makos Swim Team | 12/12/2025 | 2025 MAKO HOLIDAY INVITATIONAL | |
| 6146 | Olivia Boothby Zapata | 45.57 | 9 | B Min | BB: 43.29 (+2.28s | 5.0%) | Crimson Aquatics | 12/12/2025 | 2025 NE CRIM Frosty Frenzy Trials Finals | |
| 6147 | Shafer Botke | 45.57 | 9 | B Min | BB: 43.29 (+2.28s | 5.0%) | Mid Michigan Aquatics Hurrican | 10/04/2025 | 2025 Spooky Splash | |
| 6148 | Kenzie Jehle | 45.57 | 9 | B Min | BB: 43.29 (+2.28s | 5.0%) | M.E. Lyons/Anderson Barracudas | 02/19/2026 | 2026 OH CM SC Regional Championships | |
| 6149 | Maria Kucenic | 45.57 | 10 | B Min | BB: 43.29 (+2.28s | 5.0%) | Fox Chapel Killer Whales | 02/13/2026 | 39th Black History Swim Meet | |
| 6150 | Zoey Travnicek | 45.58 | 10 | B Min | BB: 43.29 (+2.29s | 5.0%) | Sandpoint Sharks Swim Club | 01/31/2026 | Coug Winter Open | |
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.