Gibbons is often credited with a 4 : 39.4 mile while she was in high school .
That was a converted time based on a 4 : 18.9 performance over 1500 meters ( more on that later ) .
Gibbons is often credited with a 4 : 39.4 mile while she was in high school , but that was a converted time based on a 4 : 18.9 performance over 1500 meters ( more on that later ) .