19:13 (subbed to the Pack=35 reps on each rounds, subs as follows: 20" box, 35 lbs. dumbbell swings, unanchored sit-ups for knees to elbows, 14 lbs. medicine ball, single-under jump rope)
Burpees are what kill me on these. They took me over 6:00. Either way it's 2:44 faster than last time.