“Filthy Fifty” For Time: 50 Box Jumps 50 Jumping Pull Ups 50 Kettle Bell Swings 1pood/12kg 50 Walking Lunges 50 Knees to Elbows 50 Push Press 45/35 50 Back Extensions 50 Wall Ball Shots 20/14 50 Burpees 50 Double Unders