MPHR Workout #171 (All Sports)
three rounds:
20-second effort trial, run all-out
–rest 20″–
30-second effort trial, run all-out
–rest 30″–
45-second effort trial, run all-out
–rest 45″–
one-minute effort trial, run all-out
–rest 1′–

Compare results to MPHR Workout #156.