Jump rope for heart Posted September 14, 2016 by cf1855 CrossFit 1855 – CrossFit Warm-up Warm-up (No Measure) 300 Double undersRX+ 100 triple unders Metcon Metcon (AMRAP – Rounds and Reps) Teams of 2: 30 minute AMRAP 400m RUN 10 chest to bar pull 10 burpees