"Filthy Fifty with a Double twist"

You can do Filthy Fifty's 10 different exercises in any order you like, but after each excerise you have to Run 300m every second round and do 12/9 Calories the other second round.

For time
50 Box Jumps
50 Jumping Pull-ups
50 KB swings 16/12kg
50 Walking Lunges
50 Knees to Elbows
50 Pushups
50 Back Extensions
50 Wallball
50 Burpees
50 Double unders