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 | |
|---|---|---|---|---|---|---|---|---|---|
| 1951 | Madison Gailliard | 45.92 | 10 | BB Min | A: 42.79 (+3.13s | 6.8%) | Razor Aquatics | 01/31/2026 | 2026 Guppy Bowl | |
| 1952 | Ella Kim | 45.92 | 9 | BB Min | A: 42.79 (+3.13s | 6.8%) | Buckeye Swim Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1953 | Margot Howard | 45.92 | 10 | BB Min | A: 42.79 (+3.13s | 6.8%) | North Palm Beach Swim Club | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 1954 | Doris Wang | 45.92 | 9 | BB Min | A: 42.79 (+3.13s | 6.8%) | South Shore YMCA Strypers | 03/20/2026 | 2026 NE NSSC March Madness At MIT | |
| 1955 | Inas Boulil | 45.93 | 10 | BB Min | A: 42.79 (+3.14s | 6.8%) | YMCA of Metro North Tritons | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 1956 | Annabelle Hanley | 45.93 | 10 | BB Min | A: 42.79 (+3.14s | 6.8%) | Cincinnati Marlins | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1957 | Nora Keever | 45.93 | 10 | BB Min | A: 42.79 (+3.14s | 6.8%) | Seahawk Aquatics | 02/06/2026 | 2026 Last Chance Qualifying Meet | |
| 1958 | Victoria Ikeda | 45.93 | 10 | BB Min | A: 42.79 (+3.14s | 6.8%) | Hawaii Swimming Club | 12/06/2025 | 45th Annual Ken Suenaga Invitational (SCY) | |
| 1959 | Elaine Hu | 45.93 | 9 | BB Min | A: 42.79 (+3.14s | 6.8%) | Tualatin Hills Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1960 | Paisley Szmurlo | 45.94 | 9 | BB Min | A: 42.79 (+3.15s | 6.9%) | New Albany Aquatic Club | 03/12/2026 | 2026 OH SC Junior Championships | |
| 1961 | Kennedy Schull | 45.94 | 8 | BB Min | A: 42.79 (+3.15s | 6.9%) | Lake Oswego Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 1962 | Lillian Burner | 45.94 | 10 | BB Min | A: 42.79 (+3.15s | 6.9%) | Riptide Swim Team | 02/07/2026 | 2026 MN AQJT February Invite | |
| 1963 | Lillian Muir | 45.95 | 10 | BB Min | A: 42.79 (+3.16s | 6.9%) | Egra Waves | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 1964 | Rosemary Thirolf | 45.95 | 10 | BB Min | A: 42.79 (+3.16s | 6.9%) | Rockville Montgomery Swim Club | 02/20/2026 | 2026 RMSC February Invitational | |
| 1965 | Julia Ramos | 45.95 | 10 | BB Min | A: 42.79 (+3.16s | 6.9%) | Southeast Tennessee Swimming | 01/16/2026 | 2026 TNAQ JANUARY INVITATIONAL | |
| 1966 | Katherine Brown | 45.95 | 9 | BB Min | A: 42.79 (+3.16s | 6.9%) | Poseidon Swimming Inc | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 1967 | Parker Michael | 45.96 | 9 | BB Min | A: 42.79 (+3.17s | 6.9%) | SwimMAC Carolina | 03/20/2026 | 2026 SwimMAC Tar Heel States | |
| 1968 | Ollie Jeromin | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 03/07/2026 | 2026 Lake Huron Regional Meet | |
| 1969 | Elliot Chilcott | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Nsea Swim | 03/20/2026 | 2026 STAR Tar Heel States | |
| 1970 | Eleanor Farniok | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Velocity Aquatics | 02/27/2026 | 2026 MN STRM Minnesota Regional Championship | |
| 1971 | Vera Gojkovich | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Terrapins Swim Team | 12/05/2025 | Pacific Swim SC C B BB+ Hosted By TERA | |
| 1972 | Silvi Courtney | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Fenix Swim Club | 02/20/2026 | 2026 FG SCY BB Championships SOUTH | |
| 1973 | Allie Abraham | 45.96 | 10 | BB Min | A: 42.79 (+3.17s | 6.9%) | Egra Waves | 03/07/2026 | 2026 Lake Michigan Regional Meet | |
| 1974 | Elyse Pillot | 45.97 | 10 | BB Min | A: 42.79 (+3.18s | 6.9%) | SwimRVA | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 1975 | Maya Weidner | 45.97 | 10 | BB Min | A: 42.79 (+3.18s | 6.9%) | Nation\\\\\\'s Capital Swim Club | 02/13/2026 | 2026 NCAP Winter Qualifier | |
| 1976 | Chooch Branich | 45.97 | 9 | BB Min | A: 42.79 (+3.18s | 6.9%) | Unattached | 09/20/2025 | WANV CBA+ Endless Summer Meet | |
| 1977 | Reagan Little | 45.97 | 9 | BB Min | A: 42.79 (+3.18s | 6.9%) | Livermore AquaCowboys | 09/27/2025 | PC LAC C B BB | |
| 1978 | Morgan Edouard | 45.97 | 10 | BB Min | A: 42.79 (+3.18s | 6.9%) | Fall River YMCA Lightning | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 1979 | Nicolette Adair | 45.98 | 10 | BB Min | A: 42.79 (+3.19s | 6.9%) | York Swim Club of Northern Vir | 11/07/2025 | 2025 HOKI November Invitational Copied | |
| 1980 | Caroline Deykin | 45.98 | 9 | BB Min | A: 42.79 (+3.19s | 6.9%) | Unattached | 09/12/2025 | 2025 ST SASA Sombrero Series Uno | |
| 1981 | Ella Forester | 45.98 | 10 | BB Min | A: 42.79 (+3.19s | 6.9%) | SwimMAC Carolina | 03/20/2026 | 2026 SwimMAC Tar Heel States | |
| 1982 | Amy Zhang | 45.98 | 10 | BB Min | A: 42.79 (+3.19s | 6.9%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 1983 | Muyan Hu | 45.98 | 10 | BB Min | A: 42.79 (+3.19s | 6.9%) | Quince Orchard Swim Academy | 11/14/2025 | 2025PV November Open Fairland | |
| 1984 | Poppy Mitchell | 45.98 | 9 | BB Min | A: 42.79 (+3.19s | 6.9%) | Zeus Swim Team | 12/05/2025 | 2025 MR NYS Holiday Classic Trials Finals | |
| 1985 | Gabby Fankhauser | 45.99 | 10 | BB Min | A: 42.79 (+3.20s | 7.0%) | Greater Toledo Aquatic Club | 02/19/2026 | 2026 OH SOS SC Regional Championships | |
| 1986 | Ava Peltier | 46.00 | 10 | BB Min | A: 42.79 (+3.21s | 7.0%) | Hurricanes Swim Team | 02/27/2026 | 2026 MN WEST Minnesota Regional Championship | |
| 1987 | Morgan Eagan | 46.00 | 9 | BB Min | A: 42.79 (+3.21s | 7.0%) | Fins Swim Team | 01/16/2026 | 2026 Gabrielle Rose Tiger Classic | |
| 1988 | Alivia Lee | 46.00 | 10 | BB Min | A: 42.79 (+3.21s | 7.0%) | Pro Swimming | 09/26/2025 | 2025 Pro Season Kick Off Intrasquad | |
| 1989 | Mary Johnson | 46.00 | 10 | BB Min | A: 42.79 (+3.21s | 7.0%) | Atlantis Swimming | 02/27/2026 | 2026 MCSA Junior Cup | |
| 1990 | Valerie Lan | 46.00 | 10 | BB Min | A: 42.79 (+3.21s | 7.0%) | Asphalt Green Unified Aquatics | 03/07/2026 | 2026 MR AGUA Last Chance Invitational | |
| 1991 | Cameron Wager | 46.00 | 8 | BB Min | A: 42.79 (+3.21s | 7.0%) | Machine Aquatics | 03/20/2026 | March Madness 2026 | |
| 1992 | Lucia Cirigliano | 46.00 | 10 | BB Min | A: 42.79 (+3.21s | 7.0%) | Enfinity Aquatic Club | 03/20/2026 | 2026 SwimRVA Clover Cup | |
| 1993 | Hadley Mahaney | 46.01 | 10 | BB Min | A: 42.79 (+3.22s | 7.0%) | Mount Desert Island YMCA ST | 02/27/2026 | 2026 NE Maine State Y Championships | |
| 1994 | Sofia Yumukoff | 46.01 | 9 | BB Min | A: 42.79 (+3.22s | 7.0%) | Nitro Swimming | 12/12/2025 | 2025 ST AAAA NS Winter Wonderland | |
| 1995 | Adeline Chikos | 46.01 | 10 | BB Min | A: 42.79 (+3.22s | 7.0%) | Cascade Swim Club | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 1996 | Su Karapinar | 46.03 | 8 | BB Min | A: 42.79 (+3.24s | 7.0%) | York Swim Club of Northern Vir | 03/20/2026 | March Madness 2026 | |
| 1997 | Claire Liang | 46.03 | 10 | BB Min | A: 42.79 (+3.24s | 7.0%) | DeAnza Cupertino Aquatics | 10/25/2025 | 2025 SUNN Fall Classic | |
| 1998 | Malana Langston | 46.04 | 10 | BB Min | A: 42.79 (+3.25s | 7.1%) | West Texas Typhoon | 02/22/2026 | 2026 BD SC Jr Border Championship | |
| 1999 | Zara Bold | 46.04 | 10 | BB Min | A: 42.79 (+3.25s | 7.1%) | Unattached | 01/30/2026 | 2026 NE GS Silver Championships | |
| 2000 | Hazel Ngan | 46.04 | 10 | BB Min | A: 42.79 (+3.25s | 7.1%) | Long Island Aquatic Club | 02/20/2026 | 2026 MR Silvers Championship South HAUP | |
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.