max reps:

5 rounds of max reps for each exercise for 1 minute:

double unders- 84, 91, 95, 82, 95 = 447
air squats- 48, 46, 47, 48, 47 = 236
situps- 45, 42, 42, 41, 43 = 213
calorie row- 30, 26, 27, 25, 27 = 135
rest for 1 minute