noun
final kick; closing speed
Horse racing term for a horse's ability to accelerate strongly in the final stretch of a race.
この馬は末脚が鋭く、最後の直線で一気に抜け出した。
This horse has a sharp final kick and pulled away in the last straight.
末脚を生かすには、道中でためを作る必要がある。
To make use of its closing speed, you need to save ground during the race.
Compound of 末 (end, final) and 脚 (leg, speed), literally 'final legs', referring to the closing speed of a racehorse.