10 Rounds 
400m @ r22
100m @ r28

121 DF

A nice way to make the time go by on the way to a 5K. Hit the 100m pieces at 28spm, and at a challenging pace, but make sure it's a pace you can go right into recovery with and repeat. This was done on a cold afternoon out in the garage. Started a little slower but really started to pick up the pace after the third intervals.