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 | |
|---|---|---|---|---|---|---|---|---|---|
| 2001 | Reese Fassnacht | 39.83 | 10 | BB Min | A: 37.99 (+1.84s | 4.6%) | Tsm Aquatics | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 2002 | Alexandra Tran | 39.83 | 9 | BB Min | A: 37.99 (+1.84s | 4.6%) | YMCA of the North Shore Sharks | 02/13/2026 | 2026 NE SAC 10 Under Champs | |
| 2003 | Molley White | 39.83 | 10 | BB Min | A: 37.99 (+1.84s | 4.6%) | Hale YMCA Riptides | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 2004 | Theresa Kovalyov | 39.83 | 9 | BB Min | A: 37.99 (+1.84s | 4.6%) | Northern Lights Swimming Assoc | 01/24/2026 | 2026 MN DRGN Fire And Ice Invite | |
| 2005 | Olivia Viel | 39.83 | 9 | BB Min | A: 37.99 (+1.84s | 4.6%) | South Shore Sails | 01/17/2025 | 2025 TWST Speedo Winter Classic Invitational | |
| 2006 | Aria Freeman | 39.83 | 9 | BB Min | A: 37.99 (+1.84s | 4.6%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 2007 | Michaela Smurdon | 39.83 | 10 | BB Min | A: 37.99 (+1.84s | 4.6%) | Hydro Swim Club | 12/05/2025 | 2025 Speedo Gator Holiday Classic | |
| 2008 | Kellyanne Keh | 39.84 | 10 | BB Min | A: 37.99 (+1.85s | 4.6%) | Nation\\\\\\'s Capital Swim Club | 10/25/2025 | 2025 PAC 10 Under RockHopper Penguin Meet | |
| 2009 | Clara Deaton | 39.84 | 10 | BB Min | A: 37.99 (+1.85s | 4.6%) | Wtrc Sharks | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2010 | Brynn Hackbarth | 39.84 | 10 | BB Min | A: 37.99 (+1.85s | 4.6%) | Northern Lakes Aquatic Club | 03/29/2025 | 2025 MN MYAS Midwest Regional Swim Meet | |
| 2011 | Madison Mumford | 39.84 | 9 | BB Min | A: 37.99 (+1.85s | 4.6%) | Powell Crosley YMCA | 02/19/2026 | 2026 OH CM SC Regional Championships | |
| 2012 | Lauren Squicciarini | 39.85 | 10 | BB Min | A: 37.99 (+1.86s | 4.7%) | Long Island Aquatic Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
| 2013 | Olive Soucy | 39.85 | 9 | BB Min | A: 37.99 (+1.86s | 4.7%) | Portland Porpoise Swim Club | 01/30/2026 | 2026 NE GS Silver Championships | |
| 2014 | McKenzie Beasley | 39.85 | 10 | BB Min | A: 37.99 (+1.86s | 4.7%) | Bolles School Sharks | 01/16/2026 | 2026 Pentathlon | |
| 2015 | Sarah Bender | 39.85 | 10 | BB Min | A: 37.99 (+1.86s | 4.7%) | Tsunami Swimming | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 2016 | Andrea Santarriaga | 39.85 | 9 | BB Min | A: 37.99 (+1.86s | 4.7%) | Southwest Aquatic Team | 02/27/2026 | 2026 BD SCY Border Champs | |
| 2017 | Karina Ruano | 39.85 | 10 | BB Min | A: 37.99 (+1.86s | 4.7%) | Bellingham Bay Swim Team | 03/06/2026 | 2026 BBST Seize The Day Invitational | |
| 2018 | Leah Hibler | 39.86 | 10 | BB Min | A: 37.99 (+1.87s | 4.7%) | Spy Swim Team | 02/06/2026 | 2026 Last Chance Qualifying Meet | |
| 2019 | Ainsley Detrisac | 39.86 | 10 | BB Min | A: 37.99 (+1.87s | 4.7%) | Machine Aquatics | 02/20/2026 | 2026 Machine Qualifier | |
| 2020 | Kimberly Lawson | 39.87 | 9 | BB Min | A: 37.99 (+1.88s | 4.7%) | T2 Aquatics | 02/07/2026 | 2026 GCST WINTER OPEN | |
| 2021 | Isabelle Musfeldt | 39.87 | 10 | BB Min | A: 37.99 (+1.88s | 4.7%) | Nitro Swimming | 02/06/2026 | 2026 ST AQTX STX Champs North | |
| 2022 | Zoey Quinto | 39.87 | 10 | BB Min | A: 37.99 (+1.88s | 4.7%) | Riverside Aquatics Association | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 2023 | Grace Lindsay | 39.87 | 10 | BB Min | A: 37.99 (+1.88s | 4.7%) | Club Wolverine | 10/17/2025 | 2025 USSC Trick Or Treat Grab Bag Classic | |
| 2024 | Reanna Ding | 39.87 | 10 | BB Min | A: 37.99 (+1.88s | 4.7%) | Crimson Aquatics | 01/30/2026 | 2026 NE CS Silver Championships | |
| 2025 | Leia Shelton | 39.87 | 9 | BB Min | A: 37.99 (+1.88s | 4.7%) | Laker Swim | 03/05/2026 | 2026 Florida Swimming FLAGS NORTH | |
| 2026 | Melissa Wan | 39.87 | 8 | BB Min | A: 37.99 (+1.88s | 4.7%) | Tac Titans | 12/19/2025 | 2025 TAC TITANS Jingle Bells Meet | |
| 2027 | Sierra Carr | 39.88 | 10 | BB Min | A: 37.99 (+1.89s | 4.7%) | Rancho San Dieguito | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 2028 | Evelyn Choi | 39.88 | 9 | BB Min | A: 37.99 (+1.89s | 4.7%) | Aspire Aquatics of Colorado | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 2029 | Vivian Filipic | 39.88 | 10 | BB Min | A: 37.99 (+1.89s | 4.7%) | Albany Armada Aquatics | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 2030 | Nathalie Bieler | 39.88 | 10 | BB Min | A: 37.99 (+1.89s | 4.7%) | Bolles School Sharks | 01/16/2026 | 2026 Pentathlon | |
| 2031 | Maria Ivanskaya | 39.88 | 10 | BB Min | A: 37.99 (+1.89s | 4.7%) | King Aquatic Club | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 2032 | Maisy Akos | 39.88 | 9 | BB Min | A: 37.99 (+1.89s | 4.7%) | Area Tallahassee Aquatic Club | 01/30/2026 | 2026 Mac Crutchfield Invitational | |
| 2033 | Natasha Noah | 39.88 | 10 | BB Min | A: 37.99 (+1.89s | 4.7%) | Valley Swim Team Phoenix | 01/17/2026 | 2026 Duck Bowl | |
| 2034 | Eileen Lin | 39.88 | 9 | BB Min | A: 37.99 (+1.89s | 4.7%) | Sylvania Tsunami Swim Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 2035 | Ann Garcia Seeley | 39.89 | 9 | BB Min | A: 37.99 (+1.90s | 4.8%) | Riptide Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 2036 | Annabelle Cheshire | 39.89 | 9 | BB Min | A: 37.99 (+1.90s | 4.8%) | Apollo Beach Swim Team | 10/10/2025 | 2025 GTSA TYR Swim Classic | |
| 2037 | Xiaorong Li | 39.89 | 10 | BB Min | A: 37.99 (+1.90s | 4.8%) | Milpitas Aquatic Club | 09/14/2024 | Milpitas Aquatic Club SC CBA+ Meet | |
| 2038 | Cleo Lefebvre-Bailey | 39.89 | 10 | BB Min | A: 37.99 (+1.90s | 4.8%) | College Area Swim Team | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 2039 | Jacquelyn Coleman | 39.89 | 10 | BB Min | A: 37.99 (+1.90s | 4.8%) | Unattached | 01/10/2026 | 2026 ST AHAC B Champs South Copied | |
| 2040 | Mikayla MacDonald | 39.89 | 10 | BB Min | A: 37.99 (+1.90s | 4.8%) | Washingtonians Swim Club | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 2041 | Katherine McGowan | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Atlantic Coast Athletic Club | 02/27/2026 | 2026 SW District Champs 9 Over | |
| 2042 | Addison Liwski | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Swim Neptune | 12/04/2025 | 2025 Holiday Swim Festival | |
| 2043 | Amelia Harrington | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Unattached | 11/28/2025 | 2025 MR LIE Thanksgiving Invitational | |
| 2044 | Ardella Walsh | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Rochester Swim Club | 02/13/2026 | 2026 MN RSC President S Day Meet | |
| 2045 | Lyra Mertens-Hall | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Multnomah Athletic Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 2046 | Madeline Hinton | 39.90 | 10 | BB Min | A: 37.99 (+1.91s | 4.8%) | Highlands Ranch Aquatics | 03/13/2026 | Mile High Championship Invitational | |
| 2047 | Ella Ly | 39.90 | 8 | BB Min | A: 37.99 (+1.91s | 4.8%) | Arctic Aquatics | 01/30/2026 | 2026 NE GS Silver Championships | |
| 2048 | Isabella Pahl | 39.90 | 9 | BB Min | A: 37.99 (+1.91s | 4.8%) | Sea Devils | 03/07/2026 | 2026 MN RSC 10 U State Championship | |
| 2049 | Judith Sterr | 39.91 | 10 | BB Min | A: 37.99 (+1.92s | 4.8%) | Riptide Swim Team | 03/06/2026 | 2026 CO 14 U Silver State | |
| 2050 | Liliya Strunk | 39.91 | 9 | BB Min | A: 37.99 (+1.92s | 4.8%) | Poseidon Swimming Inc | 03/21/2026 | NOVA Short Course Send Off 2026 | |
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.