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 | |
|---|---|---|---|---|---|---|---|---|---|
| 5101 | Josephine Vacelet | 45.44 | 10 | B Min | BB: 43.29 (+2.15s | 4.7%) | Sprc Stingrays | 09/26/2025 | RAC First Splash 2025 | |
| 5102 | Karolina Blom | 45.44 | 10 | B Min | BB: 43.29 (+2.15s | 4.7%) | Pacific Coast Marlins | 11/22/2025 | Thankswimming Classic 2025 | |
| 5103 | Agnes McLachlan | 45.44 | 9 | B Min | BB: 43.29 (+2.15s | 4.7%) | YMCA of the Triangle Area Swim | 02/13/2026 | Speedo 2026 MOR Short Course Qualifier Meet | |
| 5104 | Audrey Turner | 45.44 | 8 | B Min | BB: 43.29 (+2.15s | 4.7%) | YMCA of Middletown Barracudas | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 5105 | Kaelyn Kyaing | 45.44 | 8 | B Min | BB: 43.29 (+2.15s | 4.7%) | YMCA of the North Shore Sharks | 12/05/2025 | 2025 NE YNS Reid Sacco Prelims Finals Invite | |
| 5106 | Aileen Montazeri | 45.44 | 9 | B Min | BB: 43.29 (+2.15s | 4.7%) | YMCA of Metro North Tritons | 06/06/2026 | 2026 NE NSSC June Invitational @ SJP | |
| 5107 | Liuyu Wang | 45.44 | 10 | B Min | BB: 43.29 (+2.15s | 4.7%) | Belmont Aquatic Team | 01/09/2026 | 2026 NE CRA New Year Distance And Specialty | |
| 5108 | Elsa Frohlich | 45.44 | 9 | B Min | BB: 43.29 (+2.15s | 4.7%) | Northern Dutchess Aquatic Club | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 5109 | Camila Montero | 45.44 | 9 | B Min | BB: 43.29 (+2.15s | 4.7%) | Sea to Desert Swim Association | 02/07/2025 | 2025 SI SDSA All Ages A BB | |
| 5110 | Riley Cavanaugh | 45.45 | 10 | B Min | BB: 43.29 (+2.16s | 4.8%) | Riptide Swim Team (Uss) | 11/07/2025 | 2025 FXFX Loughmiller Memorial | |
| 5111 | Aria Dulworth | 45.45 | 8 | B Min | BB: 43.29 (+2.16s | 4.8%) | Swim Streamline at Northampton | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 5112 | Elisabeth Hoffmann | 45.45 | 8 | B Min | BB: 43.29 (+2.16s | 4.8%) | Badger Swim Club,Inc. | 03/07/2026 | 2026 MR Metro 8 Under Championships | |
| 5113 | Makenzie Smeaton | 45.45 | 10 | B Min | BB: 43.29 (+2.16s | 4.8%) | Tom Taylor Family YMCA | 01/24/2026 | 2026 WA State Y Championship Meet | |
| 5114 | Zoey Schlingmann | 45.45 | 9 | B Min | BB: 43.29 (+2.16s | 4.8%) | Form Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 5115 | Ainsley Sylvain | 45.45 | 9 | B Min | BB: 43.29 (+2.16s | 4.8%) | Lakeshore Swim Club | 02/19/2026 | 2026 OH Cleveland SC Regional Championships | |
| 5116 | Shannon Halverson | 45.46 | 9 | B Min | BB: 43.29 (+2.17s | 4.8%) | Magic Valley Marlins | 12/20/2025 | 2025 BY Candy Cane Invitational | |
| 5117 | Jocelyn Williams | 45.46 | 9 | B Min | BB: 43.29 (+2.17s | 4.8%) | Huntington YMCA Bluefish | 11/14/2025 | 2025 MR COND November IMX Invitational | |
| 5118 | Alexis King | 45.46 | 8 | B Min | BB: 43.29 (+2.17s | 4.8%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 5119 | Allison St. Rock | 45.46 | 9 | B Min | BB: 43.29 (+2.17s | 4.8%) | Storrs Aquatics | 03/20/2026 | 2026 NE NSSC March Madness At MIT | |
| 5120 | Leonor Bonetti | 45.46 | 9 | B Min | BB: 43.29 (+2.17s | 4.8%) | The Capitol Sea Devils | 01/24/2026 | 2026 SDS Polar Bear Invitational | |
| 5121 | Abigail Shih | 45.46 | 10 | B Min | BB: 43.29 (+2.17s | 4.8%) | Bend Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 5122 | Bailey Courtney | 45.47 | 9 | B Min | BB: 43.29 (+2.18s | 4.8%) | Middle Tennessee Swim Club | 12/13/2025 | 2025 Marshmallow Mini | |
| 5123 | Winnie Mancuso | 45.47 | 9 | B Min | BB: 43.29 (+2.18s | 4.8%) | Gold Medal Swim Club | 02/13/2026 | 34th Annual Lost Dutchman Invitational | |
| 5124 | Emma Zhao | 45.47 | 10 | B Min | BB: 43.29 (+2.18s | 4.8%) | Long Island Aquatic Club | 10/04/2025 | 2025 MR LIAC Fast Fall Invitational | |
| 5125 | Sofie Peak | 45.47 | 8 | B Min | BB: 43.29 (+2.18s | 4.8%) | Falfins Swimming | 12/19/2025 | 2025 CO Falfins Holiday Open | |
| 5126 | Peyton Fournier | 45.47 | 9 | B Min | BB: 43.29 (+2.18s | 4.8%) | Golden West Swim Club | 11/21/2025 | 2025 CA MVN Turkey Classic | |
| 5127 | Charlotte Osborne | 45.48 | 10 | B Min | BB: 43.29 (+2.19s | 4.8%) | Ensworth Aquatics | 10/25/2025 | 2025 IM Spooky | |
| 5128 | Mary Rickard | 45.48 | 10 | B Min | BB: 43.29 (+2.19s | 4.8%) | Pine Bush Piranhas | 03/27/2026 | 2026 MR Metro Bronze Championship North | |
| 5129 | Claire Zhang | 45.48 | 9 | B Min | BB: 43.29 (+2.19s | 4.8%) | Wasatch Front Fish Market | 11/12/2025 | WFFM November Developmental | |
| 5130 | Sadie Givens | 45.48 | 10 | B Min | BB: 43.29 (+2.19s | 4.8%) | Huntsville Swim Association | 02/06/2026 | 2026 SES Region 3 Champions | |
| 5131 | Olivia Ochoa | 45.48 | 9 | B Min | BB: 43.29 (+2.19s | 4.8%) | Tac Titans | 05/02/2026 | 2026 TAC TITANS Oceanus Challenge Meet | |
| 5132 | Madison Koehn | 45.48 | 7 | B Min | BB: 43.29 (+2.19s | 4.8%) | Monocacy Aquatic Club | 03/21/2026 | 2026 Maryland 8 Under Championship Meet | |
| 5133 | Ellie Kraft | 45.48 | 9 | B Min | BB: 43.29 (+2.19s | 4.8%) | Heartland Swim Assoc | 05/03/2026 | Mission Valley YMCA Rising Stars 1 | |
| 5134 | Molli Praksti | 45.49 | 10 | B Min | BB: 43.29 (+2.20s | 4.8%) | Flint YMCA Falcons | 03/07/2026 | 2026 Michigan YMCA State Championship | |
| 5135 | Willa Kline | 45.49 | 9 | B Min | BB: 43.29 (+2.20s | 4.8%) | First Colony Swim Team, Inc. | 11/08/2024 | Sharks November Invitational | |
| 5136 | Evelyn Hagen | 45.49 | 10 | B Min | BB: 43.29 (+2.20s | 4.8%) | Area Tallahassee Aquatic Club | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 5137 | Maya Hall | 45.49 | 10 | B Min | BB: 43.29 (+2.20s | 4.8%) | South San Francisco Aquatics | 01/10/2026 | SSF NEW YEAR SPLASH C B A+ | |
| 5138 | Katharine Gray | 45.49 | 10 | B Min | BB: 43.29 (+2.20s | 4.8%) | Brighton Aquatics Bull Sharks | 03/07/2026 | 2026 Lake Ontario Regional Meet | |
| 5139 | Avery Cardone | 45.49 | 8 | B Min | BB: 43.29 (+2.20s | 4.8%) | Pine Bush Piranhas | 01/31/2026 | 2026 MR MWDA YBAR Sink Or Swim Invitational | |
| 5140 | Stuti Dave | 45.49 | 10 | B Min | BB: 43.29 (+2.20s | 4.8%) | Cyclones Swim Team | 06/06/2026 | NMST June Invite 26 | |
| 5141 | Ansley Porter | 45.50 | 9 | B Min | BB: 43.29 (+2.21s | 4.9%) | Sarasota Sharks | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 5142 | Caroline Tran | 45.50 | 10 | B Min | BB: 43.29 (+2.21s | 4.9%) | York Swim Club of Northern Vir | 01/17/2026 | PVS January Open 2026 PWCS | |
| 5143 | Quincy Ryan | 45.50 | 9 | B Min | BB: 43.29 (+2.21s | 4.9%) | Webbs Tornadoes Swim Team | 05/15/2026 | 2026 NE CCSC Medley Mayhem At Sandwich High | |
| 5144 | Sindy Liu | 45.50 | 8 | B Min | BB: 43.29 (+2.21s | 4.9%) | Wave Aquatics | 03/28/2026 | 2026 PN Spring Showdown, Div 4 Approved | |
| 5145 | Quinn Lawrie | 45.51 | 9 | B Min | BB: 43.29 (+2.22s | 4.9%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/08/2025 | Atlantis 2025 Fall Quack Tack Ular | |
| 5146 | Olivia Forger | 45.51 | 9 | B Min | BB: 43.29 (+2.22s | 4.9%) | Club Wolverine | 02/21/2026 | 2026 CW Goldfish Invite | |
| 5147 | Eloise Opferman | 45.51 | 9 | B Min | BB: 43.29 (+2.22s | 4.9%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/22/2025 | 2025 Royal Fall Cup | |
| 5148 | Celine Lu | 45.51 | 8 | B Min | BB: 43.29 (+2.22s | 4.9%) | Long Island Aquatic Club | 11/21/2025 | 2025 MR FA Patriot Games Invitational | |
| 5149 | Sawyer Roe | 45.51 | 8 | B Min | BB: 43.29 (+2.22s | 4.9%) | Swim Gators Str | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 5150 | Ella Herrington | 45.51 | 10 | B Min | BB: 43.29 (+2.22s | 4.9%) | H2okie Aquatics | 11/07/2025 | 2025 HOKI November Invitational Copied | |
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.