Filthy 50 For time: 50 Box Jumps 24/20" 50 Jumping Pull Ups 50 Kettlebell Swings 16/12kg 50 Walking Lunges 50 Knees to Elbows 50 Push Press 20/15kg 50 Back Extensions 50 Wall Balls 9/6kg 50 Burpees 50 Double Unders Post results to Beyond the Whiteboard. Join here.