WOD
"Double Down"
100 DU, 50 sit ups, 400m run
 80 DU, 40 sit ups, 400m run
 60 DU, 30 sit ups, 400m run
 40 DU, 20 sit ups, 400m run
 20 DUs, 10 sit ups, 400m run

sub Double unders for singles  or tape a line on the ground and perform lateral line hops
sub running- box jumps or stair jumps 50-40-30-20-10 or shuttle runs 20 x 10m pace is key on a long chipper