My average HR for the mile segment of the Pineland 25K from the River Loop, through the field to the base of the Campus loop (location of the Pony aid station) yesterday was 173. This is about my HR max. I was running easy. My average HR over the 2nd mile of my run today was 77. This is the rate of a slow walk but again I was running easy on roller coaster singletrack. Apparently my "ez run HR" ranges between 77 to 173.