Distance:
Time: hours mins secs
 
Pace per 100 yards
Pace per 100 meters
Zone 1
Very easy effort
Very easy
Very easy
Zone 2
T-Pace + 10 sec
Zone 3
T-Pace + 5 sec
Zone 4
T-Pace
Zone 5
T-Pace
Zone 5b
T-Pace - 5 sec
Zone 5c
All out effort
All out
All out