1 | 54.49 | SYDNI TOWNSEND Delco Stallions TC | 2018 | AAU Junior Olympic Games1st |
2 | 55.15 | MCKENNA KEEGAN Avon Grove | 2016 | PIAA T&F State Championships1st |
3 | 56.05 | SARAH WALKER Germantown Friends School | 2016 | Friends Schools League Championships1st |
3 | 56.05 | BETHANY EVANKOVICH General McLane | 2016 | PIAA T&F State Championships1st |
5 | 56.16 | NICOLE LEONZO Harrisburg Christian School | 2015 | PIAA District 3 AA Championships1st |
6 | 56.36 | ALEXANDRIA KITCHELL Springside Chestnut Hill Academy | 2018 | AAU Junior Olympic Games5th P |
7 | 56.55 | BROOKLYNN BROADWATER Springside Chestnut Hill Academy | 2016 | PA Independent School Athletic Association (PAISAA) Championship1st |
8 | 56.76 | SHANNON QUINN Trinity (3) | 2015 | PIAA District 3 AA Championships2nd |
9 | 56.94 | MEGAN MANSFIELD Mechanicsburg Area High School | 2016 | PIAA T&F State Championships6th |
10 | 57.05 | LYNNE MOORADIAN South Western | 2016 | PIAA T&F State Championships2nd P |