There are two simple, compelling reasons to
use a heart-rate monitor: to train and race at the best pace for you. The table below
shows you how to find your perfect paces for: (1) the three most important workouts in any
training program; and (2) the four most popular road-race distances.
Workout Percent of Maximum Heart Rate (MHR)
Easy run and long run 65-75%
Tempo run 87-92%
Interval repeats 95-100%