Southern Zone Zone Girls 10 & under - 50 Y Back
These rankings show the swimmers' placement within their Zone.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 | Ayano Silberberg | 48.25 | 10 | B Min | BB: 43.29 (+4.96s | 10.3%) | Austin Swim Club | 11/15/2025 | 2025 ST ASC Turkey Bash | |
| 1952 | Karrington Knowlton | 48.25 | 9 | B Min | BB: 43.29 (+4.96s | 10.3%) | Memphis Tiger Swimming | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 1953 | Naomi Gore | 48.26 | 10 | B Min | BB: 43.29 (+4.97s | 10.3%) | Raleigh Swimming Association | 02/14/2026 | 2026 CAT Valentine Splash | |
| 1954 | Hailey Harmon | 48.27 | 9 | B Min | BB: 43.29 (+4.98s | 10.3%) | Apollo Beach Swim Team | 10/10/2025 | 2025 GTSA TYR Swim Classic | |
| 1955 | Katherine Fu | 48.28 | 10 | B Min | BB: 43.29 (+4.99s | 10.3%) | Katy Aquatic Team For Youth | 02/21/2025 | 2025 Gulf 12 Under Champs (KATY) | |
| 1956 | Eleanor Bahoric | 48.29 | 9 | B Min | BB: 43.29 (+5.00s | 10.4%) | Raleigh Swimming Association | 03/26/2026 | 2026 NCAC Spring Tar Heel States Copied | |
| 1957 | Emilia Raimondi | 48.29 | 8 | B Min | BB: 43.29 (+5.00s | 10.4%) | Pompano Beach Piranhas | 01/23/2026 | SPEEDO CUP CLOSED INVITE Copied | |
| 1958 | Candela Santos Uribe | 48.30 | 9 | B Min | BB: 43.29 (+5.01s | 10.4%) | Life Time Houston Swim Team | 01/18/2025 | 2025 LSST January Frosty Meet | |
| 1959 | Noelle Rosenthal | 48.30 | 9 | B Min | BB: 43.29 (+5.01s | 10.4%) | Raleigh Swimming Association | 01/16/2026 | 2026 RSA Winter Tri | |
| 1960 | Ayun Cho | 48.31 | 10 | B Min | BB: 43.29 (+5.02s | 10.4%) | Prattville Swim League | 09/20/2025 | OST Fall Invite | |
| 1961 | Lorelei Hagen | 48.32 | 9 | B Min | BB: 43.29 (+5.03s | 10.4%) | Area Tallahassee Aquatic Club | 02/28/2026 | 2026 Area 4 Spring Champs | |
| 1962 | Olivia Lancaster | 48.32 | 8 | B Min | BB: 43.29 (+5.03s | 10.4%) | Madison Swimming Association | 01/16/2026 | 2026 HSA TYR Invitational | |
| 1963 | Hadley Burns | 48.33 | 9 | B Min | BB: 43.29 (+5.04s | 10.4%) | Granite Falls Makos | 09/27/2025 | 2025 RMY Fall Invitational | |
| 1964 | Helena Gordon | 48.33 | 10 | B Min | BB: 43.29 (+5.04s | 10.4%) | Tampa Y Swimming | 02/27/2026 | 2026 Spring Area 3 Championships | |
| 1965 | Josephina Ciminillo | 48.33 | 9 | B Min | BB: 43.29 (+5.04s | 10.4%) | Gator Swim Club | 01/09/2026 | 2026 FAST Polar Plunge | |
| 1966 | Natalie Marrero | 48.34 | 10 | B Min | BB: 43.29 (+5.05s | 10.4%) | Columbus Aquatic Club | 09/20/2025 | OST Fall Invite | |
| 1967 | Caroline Bohlander | 48.35 | 9 | B Min | BB: 43.29 (+5.06s | 10.5%) | Swim Tampa Aquatics | 11/21/2025 | SPA PYP NOVEMBER 2025 | |
| 1968 | Beatriz Motta | 48.35 | 10 | B Min | BB: 43.29 (+5.06s | 10.5%) | YMCA of Central Florida | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 1969 | Isabella Hatami | 48.35 | 10 | B Min | BB: 43.29 (+5.06s | 10.5%) | South Shore Sails | 02/21/2025 | 2025 Gulf 12 Under Champs (NOCH) | |
| 1970 | Mackenzie Tompkins | 48.35 | 8 | B Min | BB: 43.29 (+5.06s | 10.5%) | Austin Swim Club | 10/10/2025 | 2025 ST ASC Bob Thompson Open | |
| 1971 | Isla Rae | 48.36 | 9 | B Min | BB: 43.29 (+5.07s | 10.5%) | Hydro Swim Club | 10/10/2025 | 2025 October Classic | |
| 1972 | Teagan Romano | 48.36 | 10 | B Min | BB: 43.29 (+5.07s | 10.5%) | Makos Aquatics Club of Gainesv | 02/22/2025 | Small Team Championships | |
| 1973 | Kate Kostyuk | 48.36 | 8 | B Min | BB: 43.29 (+5.07s | 10.5%) | Patriot Aquatics | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 1974 | Emma Myers | 48.36 | 10 | B Min | BB: 43.29 (+5.07s | 10.5%) | Cleveland Aquatics | 02/13/2026 | 2026 SE BAY Region 2 Championships Copied | |
| 1975 | Gabriella Vallerotto Quiros | 48.37 | 9 | B Min | BB: 43.29 (+5.08s | 10.5%) | Bolles School Sharks | 09/27/2025 | EAJ Speedo September Meet 2025 | |
| 1976 | Rahini Sen | 48.37 | 10 | B Min | BB: 43.29 (+5.08s | 10.5%) | SwimMAC Carolina | 03/07/2026 | 2026 SwimMAC BC Championship | |
| 1977 | Chloe Lin | 48.38 | 10 | B Min | BB: 43.29 (+5.09s | 10.5%) | Nitro Swimming | 02/01/2025 | 2025 ST NTRO Fiery Flames Meet | |
| 1978 | Valentina Brito | 48.38 | 10 | B Min | BB: 43.29 (+5.09s | 10.5%) | YMCA of Central Florida | 10/27/2024 | 2024 Halloween Spooktacular | |
| 1979 | Isabela Malespin | 48.38 | 9 | B Min | BB: 43.29 (+5.09s | 10.5%) | Tampa Elite Aquatics | 09/06/2024 | 2024 KAH20 Coach Kelley Allen Memoria Meetl | |
| 1980 | Ava Pruden | 48.38 | 8 | B Min | BB: 43.29 (+5.09s | 10.5%) | Episcopal AmberJax | 11/15/2025 | EAJ Fall Harvest 2025 | |
| 1981 | Audrey Warrington | 48.38 | 10 | B Min | BB: 43.29 (+5.09s | 10.5%) | Alamo Area Aquatic Association | 10/24/2025 | 2025 ST AAAA NS Spooky Splash | |
| 1982 | Isabelle Chilson | 48.38 | 9 | B Min | BB: 43.29 (+5.09s | 10.5%) | Sun City Swimming | 12/07/2025 | 2025 BD Del Norte #3 | |
| 1983 | Vivienne Xian | 48.40 | 9 | B Min | BB: 43.29 (+5.11s | 10.6%) | Sarasota Sharks | 01/23/2026 | 2026 Hot Chocolate Invite | |
| 1984 | Nora Eason | 48.40 | 9 | B Min | BB: 43.29 (+5.11s | 10.6%) | Memphis Tiger Swimming | 11/21/2025 | 2025 Tiger Turkey Tumble | |
| 1985 | Sof Garcia de Albizu Iba | 48.41 | 10 | B Min | BB: 43.29 (+5.12s | 10.6%) | Swim Streamline at Northampton | 02/21/2025 | 2025 Gulf 12 Under Champs (TASC) | |
| 1986 | Georgia Richards | 48.41 | 8 | B Min | BB: 43.29 (+5.12s | 10.6%) | Bolles School Sharks | 01/16/2026 | 2026 Pentathlon | |
| 1987 | Rebecca Lowther | 48.41 | 9 | B Min | BB: 43.29 (+5.12s | 10.6%) | YMCA of the Triangle Area Swim | 12/05/2025 | 2025 TYDE Winter Championship | |
| 1988 | Jameson Garrett | 48.42 | 8 | B Min | BB: 43.29 (+5.13s | 10.6%) | Area Tallahassee Aquatic Club | 10/18/2025 | ATAC Fall Invite | |
| 1989 | Bree Sites | 48.42 | 8 | B Min | BB: 43.29 (+5.13s | 10.6%) | Waves Of Wilmington Inc | 03/27/2026 | 2026 ECA ECSL Championships | |
| 1990 | Dylan Freiberg | 48.42 | 9 | B Min | BB: 43.29 (+5.13s | 10.6%) | Laker Swim | 01/17/2026 | 2026 GOAT TYR Team Challenge And SYOA | |
| 1991 | Sawyer Nichols | 48.43 | 9 | B Min | BB: 43.29 (+5.14s | 10.6%) | Life Time Southeast | 11/07/2025 | 2025 SE BSL Cranberry Classic | |
| 1992 | Riley Blaser | 48.44 | 10 | B Min | BB: 43.29 (+5.15s | 10.6%) | St. Augustine Cyclones | 11/01/2025 | 2025 SwimRise Fall Festival | |
| 1993 | Addysen Darrow | 48.45 | 9 | B Min | BB: 43.29 (+5.16s | 10.7%) | YMCA of Northwest North Caroli | 03/06/2026 | Jon Jolley GYSSA 2026 | |
| 1994 | Ophelia Daeger | 48.45 | 9 | B Min | BB: 43.29 (+5.16s | 10.7%) | Nashville Aquatic Club | 02/21/2026 | 2026 SES Region 1 8 And Under Championships | |
| 1995 | June Hery | 48.46 | 9 | B Min | BB: 43.29 (+5.17s | 10.7%) | Sarasota Sharks | 12/13/2025 | 2025 T2 Candy Cane Meet | |
| 1996 | Charlotte Freed | 48.46 | 10 | B Min | BB: 43.29 (+5.17s | 10.7%) | Premier Aquatics Club of Klein | 01/03/2025 | PACK Rubber Duckie Invite 2025 | |
| 1997 | Bennett Burney | 48.47 | 10 | B Min | BB: 43.29 (+5.18s | 10.7%) | Alamo Area Aquatic Association | 11/14/2025 | 2025 ST AAAA AH PW NC Invite | |
| 1998 | Clara Stocker | 48.47 | 10 | B Min | BB: 43.29 (+5.18s | 10.7%) | Club Talon | 11/22/2025 | 2025 Dragonfly Medical Cranberry Classic | |
| 1999 | Samira Mendoza Fuentes | 48.48 | 10 | B Min | BB: 43.29 (+5.19s | 10.7%) | El Paso Aqua Posse | 01/23/2026 | 2026 BD JCAT IMX 2026 | |
| 2000 | Claire Wooters | 48.48 | 9 | B Min | BB: 43.29 (+5.19s | 10.7%) | Saint Petersburg Aquatics | 09/19/2025 | Kiefer Speedo Fall Invitational | |
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.