Four-minute mile, for one (4)
I believe the answer is:
pace
(Other definitions for pace that I've seen before include "Speed of walking" , "Stride" , "Tempo, rate of moving" , "With the leave of; speed" , "speed of movement" .)
I believe the answer is:
pace
(Other definitions for pace that I've seen before include "Speed of walking" , "Stride" , "Tempo, rate of moving" , "With the leave of; speed" , "speed of movement" .)