Mondays WOD

OHS 5-5-5-5-5

For time, 10-9-8-7-6-5-4-3-2-1 rep rounds of:
Chest to bar pull-ups
Box jumps (30/24)
and... 20-18-16-14-12-10-8-6-4-2
Sit-ups (unanchored, abmat, with "frogs" legs, reaching through)