"These Boots Are Made For Runnin" Workout

For time:
1600m Run
12 Box Jump Overs 60/50cm
6 C2B / 12 Pull-ups
800m Run
12 Box Jump Overs 60/50cm
6 C2B / 12 Pull-ups
400m Run
12 Box Jump Overs 60/50cm
6 C2B / 12 Pull-ups