"For this to be possible, Tiesi-Manziel would have needed to run the final 6.7 miles at a pace of four minutes per mile."
It's fittingly called Tracks and Records.
A painful ending to a great career.
This outbreak has hit at least 30 people involved with the world championships.
Cha'iel beat her gold-medal time from last year's AAU Junior Olympics by five seconds.
If you needed some inspiration for the week, here it is.