5-4-3-2-1 Blastoff!

  • 500m, 50 air squats, 50 sit-ups
  • 400m, 40 air squats, 40 sit-ups
  • 300m, 30 air squats, 30 sit-ups
  • 200m, 20 air squats, 20 sit-ups
  • 100m, 10 air squats, 10 sit-ups