USA Girls 10 & under - 50 Y Breast
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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1901 | Kaien Lin | 47.33 | 10 | BB Min | A: 42.79 (+4.54s | 9.6%) | Tampa Elite Aquatics | 12/12/2025 | 2025 HARRY MEISEL WEST | |
| 1902 | Andie Villanueva | 47.33 | 10 | BB Min | A: 42.79 (+4.54s | 9.6%) | Splash Aquatics | 03/07/2026 | 2026 HI Junior Age Group SCY Championship | |
| 1903 | Clara Ulrich | 47.33 | 10 | BB Min | A: 42.79 (+4.54s | 9.6%) | Sioux Falls Swim Team | 02/20/2026 | 2026 SD 12 Under Short Course State A Champ | |
| 1904 | Amelia Chen | 47.34 | 10 | BB Min | A: 42.79 (+4.55s | 9.6%) | Scarlet Aquatics | 01/10/2026 | 2026 PTAC Tiger Invitational | |
| 1905 | Nina Rogovoy | 47.34 | 10 | BB Min | A: 42.79 (+4.55s | 9.6%) | Jbarracudas Swim Team | 03/21/2026 | 2026 SI CAST All Ages NTS Meet South | |
| 1906 | Ellyson Bridges | 47.34 | 10 | BB Min | A: 42.79 (+4.55s | 9.6%) | North Jeffco Swim Team | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1907 | Margaret Melly | 47.34 | 10 | BB Min | A: 42.79 (+4.55s | 9.6%) | Csp Tideriders | 10/09/2026 | Fall Festival Invitational | |
| 1908 | Lucia Madoglio | 47.35 | 10 | BB Min | A: 42.79 (+4.56s | 9.6%) | Jesuit | 02/14/2025 | 2025 OR HS 6a 2 | |
| 1909 | Andrea Santarriaga | 47.35 | 9 | BB Min | A: 42.79 (+4.56s | 9.6%) | Southwest Aquatic Team | 02/27/2026 | 2026 BD SCY Border Champs | |
| 1910 | Eloise Miller | 47.35 | 8 | BB Min | A: 42.79 (+4.56s | 9.6%) | O\\\\\\'Neal Aquatics | 10/18/2025 | 2025 NCAC IMX | |
| 1911 | Maya Kiryanov | 47.35 | 10 | BB Min | A: 42.79 (+4.56s | 9.6%) | Wind N Sea Swim Team | 08/08/2026 | 2026 SI WIND All Ages NTS Wrap Up Meet | |
| 1912 | Kirsten Peredo | 47.35 | 9 | BB Min | A: 42.79 (+4.56s | 9.6%) | South San Francisco Aquatics | 10/24/2026 | PSL Pumpkin Spice Splash | |
| 1913 | Bailey Eklund | 47.36 | 9 | BB Min | A: 42.79 (+4.57s | 9.6%) | Egra Waves | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 1914 | Etta Barbaro | 47.36 | 9 | BB Min | A: 42.79 (+4.57s | 9.6%) | North Carolina Aquatic Club | 11/09/2025 | 2025 12 And Under Mini Meet V2 | |
| 1915 | Presley Purcell | 47.36 | 10 | BB Min | A: 42.79 (+4.57s | 9.6%) | Aspen Swim Club | 10/10/2026 | 2026 CO Aspen Swim Meet | |
| 1916 | Madelyn Miyashiro | 47.36 | 10 | BB Min | A: 42.79 (+4.57s | 9.6%) | Alameda Gators | 10/10/2026 | Orinda Aquatics PC SC C B BB+ | |
| 1917 | Amilia Wu | 47.36 | 10 | BB Min | A: 42.79 (+4.57s | 9.6%) | Nitro Swimming | 09/26/2026 | 2026 ST NTRO Autumn Classic | |
| 1918 | Tiffany Gao | 47.36 | 7 | BB Min | A: 42.79 (+4.57s | 9.6%) | Bellevue Club Swim Team | 10/23/2026 | 2026 THSC Fall Invitational | |
| 1919 | Brailey Adams | 47.37 | 9 | BB Min | A: 42.79 (+4.58s | 9.7%) | Razor Aquatics | 12/12/2025 | OLY Swimming Holiday Bowl | |
| 1920 | Miabela Swanson | 47.37 | 9 | BB Min | A: 42.79 (+4.58s | 9.7%) | Pompano Beach Piranhas | 09/19/2026 | September Open 2026 | |
| 1921 | Taylor Yoshimoto | 47.37 | 10 | BB Min | A: 42.79 (+4.58s | 9.7%) | Brighton Bullfrogs Swim Club | 10/24/2026 | 2026 CO LONG Great Pumpkin Pentathlon | |
| 1922 | Jinnie Park | 47.38 | 8 | BB Min | A: 42.79 (+4.59s | 9.7%) | Twisters Swim Club | 12/13/2025 | 2025 MR TRI Winter SCY Invitational | |
| 1923 | Raya Hari | 47.38 | 10 | BB Min | A: 42.79 (+4.59s | 9.7%) | Wave Aquatics | 10/03/2026 | 2026 PN Wave Rocktober Invitational Approved | |
| 1924 | Harper Campbell | 47.38 | 10 | BB Min | A: 42.79 (+4.59s | 9.7%) | Nitro Swimming | 10/18/2026 | 2026 ST TXLA 10 U Fall Kick Off Invite | |
| 1925 | Miriam Stiffler | 47.38 | 10 | BB Min | A: 42.79 (+4.59s | 9.7%) | Elevation Athletics | 10/24/2026 | 2026 CO LONG Great Pumpkin Pentathlon | |
| 1926 | Charlotte Goetz | 47.39 | 9 | BB Min | A: 42.79 (+4.60s | 9.7%) | Oly Swimming | 02/06/2026 | 2026 Michigan Open | |
| 1927 | Tatiana Diener | 47.39 | 8 | BB Min | A: 42.79 (+4.60s | 9.7%) | Rockville Montgomery Swim Club | 02/14/2026 | 2026 RMSC Gender Blender Mini Meet | |
| 1928 | Lucy Riley | 47.39 | 10 | BB Min | A: 42.79 (+4.60s | 9.7%) | Sarasota Sharks | 11/07/2025 | 2025 SYS Turkey Meet | |
| 1929 | Harper Walden | 47.40 | 9 | BB Min | A: 42.79 (+4.61s | 9.7%) | Mississippi Makos Swim Team | 12/05/2025 | 2025 SE Christmas In Auburn | |
| 1930 | Olivia Shieh | 47.40 | 10 | BB Min | A: 42.79 (+4.61s | 9.7%) | Lake Oswego Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1931 | Aubrey Eberson | 47.40 | 10 | BB Min | A: 42.79 (+4.61s | 9.7%) | Nocatee Bluetide Swim Team | 07/25/2026 | NFSSL Champs 2026 | |
| 1932 | Helen Zhang | 47.40 | 10 | BB Min | A: 42.79 (+4.61s | 9.7%) | California Dolphins Swim Team | 07/25/2026 | Zone 2 Summer Championships | |
| 1933 | Elizabeth Jiao | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | Seattle Metropolitan Aquatic C | 03/28/2026 | 2026 PN Spring Showdown, Div 2 Approved | |
| 1934 | Maeve Henderson | 47.41 | 9 | BB Min | A: 42.79 (+4.62s | 9.7%) | Bergen Barracudas Swim Team | 01/23/2026 | 2026 MR HAWKS AD Trials And Finals | |
| 1935 | Anna Kudyakova | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | SwimFast | 02/06/2026 | Friendship Meet 2026 | |
| 1936 | McKinley Whitaker | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | Aspire Aquatics of Colorado | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 1937 | Lorelei Jenson | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | Edina Swim Club | 10/10/2026 | 2026 MN EDI Gator Splash And Dash | |
| 1938 | Scout Arlich | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | St Croix Swim Club | 12/12/2025 | 2025 MN SCSC Winter Carnival | |
| 1939 | Luna Ahumada | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | Unattached | 10/17/2026 | ATAC October 2026 Fall Invite | |
| 1940 | Veronica Bratkowski | 47.41 | 10 | BB Min | A: 42.79 (+4.62s | 9.7%) | Burlingame Aquatics | 10/03/2026 | PASA CBA+ SCY Meet Oct 2026 | |
| 1941 | Claire Todd | 47.42 | 9 | BB Min | A: 42.79 (+4.63s | 9.8%) | Herndon Aquatic Club | 11/21/2025 | 2025 Swim Rock | |
| 1942 | Nora Pei | 47.42 | 10 | BB Min | A: 42.79 (+4.63s | 9.8%) | Albany Armada Aquatics | 07/10/2026 | Redwood Empire Swim League Championship | |
| 1943 | Victoria Wishart | 47.43 | 10 | BB Min | A: 42.79 (+4.64s | 9.8%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1944 | Grace Lindsay | 47.43 | 10 | BB Min | A: 42.79 (+4.64s | 9.8%) | Club Wolverine | 11/21/2025 | 2025 SST Fall Classic | |
| 1945 | Brydie Kearns | 47.43 | 9 | BB Min | A: 42.79 (+4.64s | 9.8%) | Swim Coral Springs | 09/11/2026 | 2026 Michael S Memorial Meet | |
| 1946 | Mihaela Semiz | 47.43 | 9 | BB Min | A: 42.79 (+4.64s | 9.8%) | Stingray Swim Team | 10/17/2026 | 2026 PN MMSC Fall Invite Approved | |
| 1947 | Lillyana Basil | 47.44 | 10 | BB Min | A: 42.79 (+4.65s | 9.8%) | Unattached | 04/15/2026 | 2026 ST NIST April Race Night | |
| 1948 | Emma Germe | 47.44 | 8 | BB Min | A: 42.79 (+4.65s | 9.8%) | Meadow | 11/01/2025 | Kati McDermott Memorial Fall Jamboree Invite | |
| 1949 | Alice Cahill | 47.44 | 9 | BB Min | A: 42.79 (+4.65s | 9.8%) | Hydra Aquatics | 11/14/2025 | ISCA Fall Classic Championship 2025 | |
| 1950 | Maddy Walker | 47.44 | 10 | BB Min | A: 42.79 (+4.65s | 9.8%) | Spokane Sea Serpents | 11/21/2025 | 2025 Adam England Memorial Fall Splash | |
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.