Short Distance
noun
A 距離 (distance) that is short is a short distance.
たんきょり
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
ほんの数年後、彼女はようやく自分がその短距離走で優勝した短距離走者だったことを認めました。
Only years later did she finally admit she was the sprinter who won the short distance race.