| Time | Date | Name | Meet |
|---|---|---|---|
| 51.92 | Nov. 6, 2019 | Grace Kadlecik | NYSPHSAA Girls Section IV Class C Championships |
| 52.21 | Sept. 20, 2019 | Grace Kadlecik | Invitational In the Glen |
| 53.38 | Oct. 12, 2018 | Grace Kadlecik | Elmira Girls Invitational |
| 54.30 | Sept. 29, 2017 | Grace Kadlecik | Jack Thomas Invitational |
| 55.47 | Nov. 2, 2016 | Grace Kadlecik | NYSPHSAA Class C Sectional Championships |
| 56.03 | Oct. 29, 2016 | Grace Kadlecik | IAC Championships |
| 56.41 | Nov. 1, 2014 | Adele Ferris | IAC Championships |
