Thursday 5/21/15 May 21, 2015 by CFAdmin WOD For time: 400 Meter Run, 100 Double-Unders, 400 Meter Run, 75 Double-Unders, 400 Meter Run, 50 Double-Unders, 400 Meter Run, 25 Double-Unders. Every time you break on the Double-Unders = 18 Sit-ups.