Running 37:10 4.41 mi (8:26 / mi)
ahr:145 max:176
Track workout! Felt pretty good.
3 x (3 x 400m, 200m roll-on), extra 200m roll-on between sets of 3
83,82,81
83,83,83
83,85,82
So, decent 400 times, but all are from the roll-on, not starting from rest, which is worth a second? two?