18 Mar /0 Comments/Challenge, CrossFit, Fitness, Gains, General 16.4 This one is going to be rough! Keep those backs tight Workout 16.4 13-min. AMRAP: 55 deadlifts 55 wall-ball shots 55-calorie row 55 handstand push-ups M 225 lb. / 20-lb. ball F 155 lb. / 14-lb. ball