As many reps as possible in 10 mins of:
4 Double Unders
8 Double Unders
12 Double Unders
16 Double Unders
Continue adding reps in the above way each round for as long as you can.
Score is total reps completed
Every 2 mins for 10 mins do:
Run, 200 m
12 Box Jumps, 24/20 inch
Rx athletes will most likely complete the run in around 45-50secs each time allowing enough time to complete the Box jumpovers.
Scaled athletes should choose less Box jump reps to allow them to complete at least 3 of the 5 rounds.