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 | |
|---|---|---|---|---|---|---|---|---|---|
| 7451 | Mackenzie Marenic | 47.05 | 10 | B Min | BB: 43.29 (+3.76s | 8.0%) | Nation\\\\\\'s Capital Swim Club | 01/17/2026 | PVS January Open 2026 PWCS | |
| 7452 | Kayla Mui | 47.05 | 9 | B Min | BB: 43.29 (+3.76s | 8.0%) | Long Island Aquatic Club | 01/10/2026 | 2026 MR FA Iron Dragon Invitational | |
| 7453 | Cameron Finnerty | 47.05 | 9 | B Min | BB: 43.29 (+3.76s | 8.0%) | Long Island Aquatic Club | 10/04/2025 | 2025 MR LIAC Fast Fall Invitational | |
| 7454 | Charlee Beaudry | 47.06 | 10 | B Min | BB: 43.29 (+3.77s | 8.0%) | Sea Devils | 11/22/2025 | 2025 MN HTSC Harvest Classic | |
| 7455 | Antonia Scheinfeld | 47.06 | 10 | B Min | BB: 43.29 (+3.77s | 8.0%) | Longhorn Aquatics | 11/16/2025 | 2025 ST TXLA 10 U November Unclassified | |
| 7456 | Charlie Elliott | 47.06 | 9 | B Min | BB: 43.29 (+3.77s | 8.0%) | Beaverton Area Aquatics Club | 02/01/2025 | 2025 OR HEAT B C Blastoff | |
| 7457 | Yasmine Wittlin | 47.06 | 9 | B Min | BB: 43.29 (+3.77s | 8.0%) | Gulliver Swim Club | 09/13/2025 | Scotty Invite | |
| 7458 | Autumn McCarthy | 47.06 | 10 | B Min | BB: 43.29 (+3.77s | 8.0%) | Swim Melbourne | 02/28/2026 | Spring Area 6 Championships 2026 | |
| 7459 | Brenna Holbig | 47.06 | 10 | B Min | BB: 43.29 (+3.77s | 8.0%) | Merritt Athletic Swimming | 12/21/2025 | The Grinch Stole My Times (9 O BB Slowe) 2025 | |
| 7460 | Maya Casciato | 47.06 | 10 | B Min | BB: 43.29 (+3.77s | 8.0%) | Asheville Jewish Community Cen | 01/17/2026 | 2026 AJCC Snowball Ramble Meet | |
| 7461 | Paige Routzahn | 47.06 | 9 | B Min | BB: 43.29 (+3.77s | 8.0%) | Frederick Area Swim Team | 01/11/2026 | 2026 FOX January Distance Sprint Meet | |
| 7462 | Emersyn Friedrich | 47.06 | 9 | B Min | BB: 43.29 (+3.77s | 8.0%) | Aquatic Club of Elkhorn | 01/15/2026 | BLCK SCSC ACE Dual | |
| 7463 | Charlotte Kooistra | 47.07 | 10 | B Min | BB: 43.29 (+3.78s | 8.0%) | Egra Waves | 12/05/2025 | EGRA 2025 Winter Washout | |
| 7464 | Julia Gjura | 47.07 | 10 | B Min | BB: 43.29 (+3.78s | 8.0%) | Weymouth Club Waves | 12/07/2025 | 2025 NE SSC Dec Specialty | |
| 7465 | Elizabeth Tokarz | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Crimson Aquatics | 01/16/2026 | 2026 NE CRIM Bronze Championship | |
| 7466 | Victoria Herrera | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Swim Houston Aquatics Center | 11/07/2025 | 2025 ST SCY Surge Shark Sizzler | |
| 7467 | Charlotte Hoell | 47.07 | 10 | B Min | BB: 43.29 (+3.78s | 8.0%) | Keene YMCA Dolphins | 12/05/2025 | 2025 NE UVAC Winter Classic | |
| 7468 | Vienna Van Vels | 47.07 | 10 | B Min | BB: 43.29 (+3.78s | 8.0%) | Grand Rapids Aquatics | 11/15/2025 | 2025 GR Gales Of November Open Invitational | |
| 7469 | Ella Ascheman | 47.07 | 8 | B Min | BB: 43.29 (+3.78s | 8.0%) | Sea Devils | 01/10/2026 | 2026 MN MONC New Years Invite | |
| 7470 | Baylee Lewis | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Sylvania Tsunami Swim Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
| 7471 | Mary Herman | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Life Time Colorado Swim Club | 12/13/2024 | 2024 CO Falfins Holiday Open | |
| 7472 | Isabella Jedzejec | 47.07 | 8 | B Min | BB: 43.29 (+3.78s | 8.0%) | Tampa Bay Aquatic Club | 08/23/2025 | SPA TBAC AUGUST 23, 2025 | |
| 7473 | Laylah Boit | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Piranhas Swim Club | 02/07/2026 | 2026 MN PRNH Winter Whiteout | |
| 7474 | Jazlynn Bernal | 47.07 | 9 | B Min | BB: 43.29 (+3.78s | 8.0%) | Patuxent Aquatics Club | 02/13/2026 | 39th Black History Swim Meet | |
| 7475 | Daniela Martinez Velasco | 47.08 | 9 | B Min | BB: 43.29 (+3.79s | 8.1%) | Nitro Swimming | 01/31/2026 | 2026 ST NTRO Fiery Flames | |
| 7476 | Drew Diefendorf | 47.08 | 10 | B Min | BB: 43.29 (+3.79s | 8.1%) | Albany Aquatic Association | 01/03/2026 | 2026 CAT Short Course Open | |
| 7477 | Mia Wei | 47.08 | 10 | B Min | BB: 43.29 (+3.79s | 8.1%) | Tac Titans | 11/15/2025 | 2025 TAC TITANS Turkey Squad Meet | |
| 7478 | Dorothea Wilkie | 47.08 | 7 | B Min | BB: 43.29 (+3.79s | 8.1%) | Sea Devils | 03/07/2025 | 2025 MN MTKA Minnesota Regional Championship | |
| 7479 | Angelina Petito | 47.08 | 8 | B Min | BB: 43.29 (+3.79s | 8.1%) | West Islip Swim Club | 01/30/2026 | 2026 MR LIE Second Chance Invitational | |
| 7480 | Elliana Limperos | 47.08 | 9 | B Min | BB: 43.29 (+3.79s | 8.1%) | Piranhas YMCA of the Suncoast | 11/21/2025 | SPA PYP NOVEMBER 2025 | |
| 7481 | Norah Tarr | 47.08 | 9 | B Min | BB: 43.29 (+3.79s | 8.1%) | Rockville Montgomery Swim Club | 12/05/2025 | 2025 Christmas Championships | |
| 7482 | Anny Cao | 47.08 | 7 | B Min | BB: 43.29 (+3.79s | 8.1%) | First Colony Swim Team, Inc. | 11/08/2024 | Sharks November Invitational | |
| 7483 | Thu Hoang | 47.08 | 8 | B Min | BB: 43.29 (+3.79s | 8.1%) | Columbia Aquatics Association | 01/03/2026 | 2026 ASTS Invitational | |
| 7484 | Catherine McGugin | 47.08 | 7 | B Min | BB: 43.29 (+3.79s | 8.1%) | Fenix Swim Club | 11/08/2025 | Golden Eagle Classic 25 | |
| 7485 | Amelia Horng | 47.08 | 9 | B Min | BB: 43.29 (+3.79s | 8.1%) | Wave Aquatics | 11/01/2025 | 2025 PN Bob Miller Sprint Distance Classic | |
| 7486 | Kynlee Mair | 47.08 | 9 | B Min | BB: 43.29 (+3.79s | 8.1%) | Wasatch Swim Club | 11/01/2025 | Race Swami Dia De Los Muertos Classic 2025 | |
| 7487 | Nicole Cherny | 47.09 | 10 | B Min | BB: 43.29 (+3.80s | 8.1%) | Marks Jch Stingrays | 10/04/2025 | 2025 MR QNS Hello Brooklyn Invitational | |
| 7488 | Stella Morency | 47.09 | 9 | B Min | BB: 43.29 (+3.80s | 8.1%) | Greater Lowell Family YMCA | 01/24/2026 | 2026 NE NSSC Snowman Sprints | |
| 7489 | Grace Mauldin | 47.09 | 9 | B Min | BB: 43.29 (+3.80s | 8.1%) | Potomac Marlins | 02/20/2026 | 2026 FXFX Forty Niner | |
| 7490 | Alira Miracle | 47.09 | 9 | B Min | BB: 43.29 (+3.80s | 8.1%) | Dads Club Swim Team | 01/18/2025 | 2025 LSST January Frosty Meet | |
| 7491 | Lily McGlashon | 47.09 | 9 | B Min | BB: 43.29 (+3.80s | 8.1%) | West Coast Aquatics | 01/24/2026 | 2026 PN BBST Aly Fell Memorial Approved | |
| 7492 | Avery Hillard | 47.09 | 9 | B Min | BB: 43.29 (+3.80s | 8.1%) | Rockford Riptide | 02/07/2026 | 2026 Grand Rapids Open | |
| 7493 | Cameron Maher | 47.10 | 9 | B Min | BB: 43.29 (+3.81s | 8.1%) | Monmouth Barracudas | 04/11/2025 | 2025 GTSA TYR Spring Championship | |
| 7494 | Selah Portella | 47.10 | 9 | B Min | BB: 43.29 (+3.81s | 8.1%) | Centreville Swim Club | 01/17/2026 | PVS January Open 2026 PWCS | |
| 7495 | Emma Langer | 47.10 | 9 | B Min | BB: 43.29 (+3.81s | 8.1%) | SwimRise Aquatics | 02/20/2026 | 2026 Area 1 Spring Championships | |
| 7496 | Charlie Whitley | 47.10 | 8 | B Min | BB: 43.29 (+3.81s | 8.1%) | East Carolina Aquatics | 11/21/2025 | 2025 ECA Southeastern Classic | |
| 7497 | Gabriella Rosas | 47.10 | 10 | B Min | BB: 43.29 (+3.81s | 8.1%) | Form Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 7498 | Anna Appleman | 47.10 | 9 | B Min | BB: 43.29 (+3.81s | 8.1%) | Arlington Aquatic Club | 10/18/2025 | 2025 AAC Fall Gator Mini Meet | |
| 7499 | Elizabeth Gray | 47.10 | 10 | B Min | BB: 43.29 (+3.81s | 8.1%) | Longhorn Aquatics | 11/16/2025 | 2025 ST TXLA 10 U November Unclassified | |
| 7500 | Savannah Hsu | 47.10 | 8 | B Min | BB: 43.29 (+3.81s | 8.1%) | Long Island Aquatic Club | 01/10/2026 | 2026 MR FA Iron Dragon Invitational | |
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.