Today I ran 20 x 200m (1/2 a track lap) with 200m recoveries. I didn't realize until after I did some research that the 400m lane is typically the inner-most lane; I thought it would be the middle lane and I ran there with cones to help me consistently time things. Anyway, I wore my new Garmin watch which gave me average pace per interval. I wonder how accurate it is on those short distances? I forgot to wear the HR monitor and will do that next time. I posted this run online.