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 | Arielle Zur | 47.44 | 9 | BB Min | A: 42.79 (+4.65s | 9.8%) | Long Island Express | 02/20/2026 | 2026 MR Metro Silver Central Champs WEST | |
| 1952 | Brooklyn Chatterton | 47.44 | 10 | BB Min | A: 42.79 (+4.65s | 9.8%) | Raleigh Swimming Association | 03/26/2026 | 2026 NCAC Spring Tar Heel States Copied | |
| 1953 | Liliya Strunk | 47.44 | 9 | BB Min | A: 42.79 (+4.65s | 9.8%) | Poseidon Swimming Inc | 03/21/2026 | NOVA Short Course Send Off 2026 | |
| 1954 | Claire Strickert | 47.44 | 10 | BB Min | A: 42.79 (+4.65s | 9.8%) | Northern KY Clippers | 10/23/2026 | 2026 CLPR Halloween Meet | |
| 1955 | Edda Wang | 47.44 | 9 | BB Min | A: 42.79 (+4.65s | 9.8%) | West Coast Aquatics | 09/26/2026 | 2026 PN IST Sockeye Sprints Approved | |
| 1956 | Norah Tarr | 47.45 | 9 | BB Min | A: 42.79 (+4.66s | 9.8%) | Rockville Montgomery Swim Club | 11/14/2025 | 2025 RMSC November Dual Meet | |
| 1957 | Evelyn Boucher | 47.45 | 10 | BB Min | A: 42.79 (+4.66s | 9.8%) | Cane Bay Family YMCA Krakens | 03/19/2026 | 2026 USRY Short Course Champs | |
| 1958 | Aimee Hamblett | 47.45 | 10 | BB Min | A: 42.79 (+4.66s | 9.8%) | Commonwealth Swimming | 06/26/2026 | 2026 NE CS Summer Classic | |
| 1959 | Madison Kuhn | 47.45 | 10 | BB Min | A: 42.79 (+4.66s | 9.8%) | Ensworth Aquatics | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 1960 | Adelynn Zaker | 47.46 | 9 | BB Min | A: 42.79 (+4.67s | 9.8%) | Millard Aquatic Club | 02/20/2026 | 2026 MW Midwestern Age Group Short Course | |
| 1961 | Mary Brede | 47.46 | 10 | BB Min | A: 42.79 (+4.67s | 9.8%) | Egra Waves | 12/05/2025 | EGRA 2025 Winter Washout | |
| 1962 | Hadlie Heale | 47.46 | 9 | BB Min | A: 42.79 (+4.67s | 9.8%) | Atlantic Coast Athletic Club | 02/07/2026 | SW District 8 Under Championship | |
| 1963 | Molly Nightingale | 47.46 | 9 | BB Min | A: 42.79 (+4.67s | 9.8%) | Black Marlins Swim Team | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 1964 | Faith Barbosa | 47.46 | 10 | BB Min | A: 42.79 (+4.67s | 9.8%) | Sarasota Tsunami Swim Team | 10/17/2026 | 2026 SPEEDO OCROBERFEST Swim Meet | |
| 1965 | Siyun Yoo | 47.47 | 9 | BB Min | A: 42.79 (+4.68s | 9.9%) | Utica Shelby Swim Club | 02/27/2026 | 2026 Junior Cup | |
| 1966 | Peyton Nicholson | 47.47 | 9 | BB Min | A: 42.79 (+4.68s | 9.9%) | Mount Desert Island YMCA ST | 03/13/2025 | 2025 MESI Winter Short Course Championships | |
| 1967 | Chiara Rapkin | 47.47 | 9 | BB Min | A: 42.79 (+4.68s | 9.9%) | Omni Otters Swim Club | 02/27/2026 | 2026 MN STRM Minnesota Regional Championship | |
| 1968 | Chloe Adams | 47.47 | 10 | BB Min | A: 42.79 (+4.68s | 9.9%) | Machine Aquatics | 10/04/2025 | 2025 Harvest Moon Invitational | |
| 1969 | Aurora Decktor | 47.47 | 10 | BB Min | A: 42.79 (+4.68s | 9.9%) | Eagle Swim Team Inc. | 02/14/2026 | EST Vs NAAC Dual Meet | |
| 1970 | Lianna Marin | 47.47 | 9 | BB Min | A: 42.79 (+4.68s | 9.9%) | Apollo Beach Swim Team | 04/10/2026 | 2026 GTSA TYR Spring Championship | |
| 1971 | Serena Lee | 47.47 | 10 | BB Min | A: 42.79 (+4.68s | 9.9%) | Springfield YMCA Swim Team | 10/24/2026 | 2026 METS Splash Of The Titans Copied | |
| 1972 | Allison Hernandez | 47.48 | 9 | BB Min | A: 42.79 (+4.69s | 9.9%) | Prince William Swim Club | 02/13/2026 | 2026 Northern District 12 Under Championship | |
| 1973 | Hailey LaBerge | 47.48 | 10 | BB Min | A: 42.79 (+4.69s | 9.9%) | Rancho San Dieguito | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 1974 | Emilia Myers | 47.48 | 9 | BB Min | A: 42.79 (+4.69s | 9.9%) | Saint Louis Tsunami Swimming | 10/09/2026 | Fall Festival Invitational | |
| 1975 | Anastasia Stevens | 47.49 | 10 | BB Min | A: 42.79 (+4.70s | 9.9%) | Clearwater Aquatic Team | 10/09/2026 | 2026 GTSA TYR Swim Classic | |
| 1976 | Charlotte Tamayo | 47.49 | 10 | BB Min | A: 42.79 (+4.70s | 9.9%) | California Capital Aquatics | 09/26/2026 | 2026 CCA Spook Tacular | |
| 1977 | Ava McDonough | 47.50 | 9 | BB Min | A: 42.79 (+4.71s | 9.9%) | Revolution Swim Club | 01/16/2026 | 2026 NE SAC Bronze Championships | |
| 1978 | Layla Ferguson | 47.50 | 9 | BB Min | A: 42.79 (+4.71s | 9.9%) | Just Care Aquatics Tritons | 02/27/2026 | 2026 BD SCY Border Champs | |
| 1979 | Presley Simmons | 47.50 | 10 | BB Min | A: 42.79 (+4.71s | 9.9%) | College Area Swim Team | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 1980 | Jane Senescu | 47.50 | 9 | BB Min | A: 42.79 (+4.71s | 9.9%) | Palo Alto Stanford Aquatics | 10/24/2026 | SUNN Fall Classic 2026 | |
| 1981 | Emma Cheong | 47.50 | 10 | BB Min | A: 42.79 (+4.71s | 9.9%) | Milpitas Aquatic Club | 10/10/2026 | MAC Oct 10th Block Party | |
| 1982 | Jasmine Dao | 47.51 | 10 | BB Min | A: 42.79 (+4.72s | 9.9%) | Adrienne C Nelson | 02/15/2025 | 2025 OR HS 6a 4 | |
| 1983 | Noelle George | 47.51 | 10 | BB Min | A: 42.79 (+4.72s | 9.9%) | Scarlet Aquatics | 06/06/2026 | 2026 Scarlet Summer Blast | |
| 1984 | Alder Clayton | 47.51 | 10 | BB Min | A: 42.79 (+4.72s | 9.9%) | College Area Swim Team | 10/03/2026 | 2026 SI CAST Pentathlon October 3 | |
| 1985 | Aubrey Weidner | 47.51 | 10 | BB Min | A: 42.79 (+4.72s | 9.9%) | Oldham County Family YMCA | 10/10/2026 | 2026 Tsunami Fall Invitational | |
| 1986 | Sarah Leonard | 47.52 | 10 | BB Min | A: 42.79 (+4.73s | 10.0%) | Iguanas Swim Club | 03/29/2025 | 2025 MN MYAS Midwest Regional Swim Meet | |
| 1987 | Charlotte Swinning | 47.52 | 10 | BB Min | A: 42.79 (+4.73s | 10.0%) | Grand Traverse Bay YMCA Breake | 03/07/2026 | 2026 Michigan YMCA State Championship | |
| 1988 | Violeta Pop Friedman | 47.52 | 10 | BB Min | A: 42.79 (+4.73s | 10.0%) | Mystic Hammerheads | 03/21/2026 | 2026 NE YNS YMCA New England Championship | |
| 1989 | Maddix Muldoon | 47.52 | 10 | BB Min | A: 42.79 (+4.73s | 10.0%) | Hydro Swim Club | 10/26/2025 | 2025 Hydro Halloween Pentathlon Copied | |
| 1990 | Olivia Volzer | 47.53 | 10 | BB Min | A: 42.79 (+4.74s | 10.0%) | Clearfield City Aquatic Team | 11/06/2025 | 2025 OA Thanksgiving Turkey Meet | |
| 1991 | Ella Anga | 47.53 | 9 | BB Min | A: 42.79 (+4.74s | 10.0%) | Birmingham \\\\\\'y\\\\\\' Blue Dolphins | 11/22/2025 | 2025 Royal Fall Cup | |
| 1992 | Edith Kuhlman | 47.53 | 9 | BB Min | A: 42.79 (+4.74s | 10.0%) | Arlington Aquatic Club | 01/17/2026 | 2026 PV January Open Audrey Moore | |
| 1993 | Mayah Wood | 47.53 | 9 | BB Min | A: 42.79 (+4.74s | 10.0%) | Northeast Houston Aquatics | 12/20/2024 | 2024 Gulf Fall Champs (SHRK) | |
| 1994 | Sophie Harr | 47.53 | 9 | BB Min | A: 42.79 (+4.74s | 10.0%) | Crimson Aquatics | 07/30/2026 | 2026 NE CRA Prelim Final SCY Meet | |
| 1995 | Eilyn Bae | 47.53 | 10 | BB Min | A: 42.79 (+4.74s | 10.0%) | Victor Swim Club | 10/24/2026 | 2026 Victor Halloween Classic | |
| 1996 | Natalie Adams | 47.54 | 10 | BB Min | A: 42.79 (+4.75s | 10.0%) | Nova of Virginia | 01/24/2026 | 2026 WAC Mike Willard Polar Plunge | |
| 1997 | Hazel Rivers | 47.55 | 10 | BB Min | A: 42.79 (+4.76s | 10.0%) | Foxjets Swim Team | 02/27/2026 | 2026 MN EDI Minnesota Regional Championship | |
| 1998 | June Jimenez | 47.55 | 9 | BB Min | A: 42.79 (+4.76s | 10.0%) | Blackhawk Swim Team | 10/09/2026 | VJO S Sprint For The Golden Ticket 2026 C | |
| 1999 | Hazel Herman | 47.55 | 10 | BB Min | A: 42.79 (+4.76s | 10.0%) | Lakeside Swim Team | 10/16/2026 | 2026 SwimVille USA Jack Thompson Classic | |
| 2000 | Nancy Aldrich | 47.55 | 10 | BB Min | A: 42.79 (+4.76s | 10.0%) | Pueblo Swim Club | 10/09/2026 | 2026 CO Gian Luc Jordan Open | |
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.