horse length; length
Unit of distance in horse racing, roughly the length of a horse (about 2.4 meters). Used to describe winning margins or gaps between horses.
His horse won by two lengths.
That horse won by two lengths.
ゴール前で1馬身リードしている。
It's leading by one length before the finish line.
The leading horse is maintaining a three-length lead.
He opened up a one-length gap at the final turn.