Notes
87F 60%H 71DP, at Rock Springs Park just doing 6 easy, using M170 = C172 which shows as 86 on Garmin. Think I was going too fast for the temperature. I did the usual 1 mile warmup and then the next 3 miles at 10:46.x and then slowed down for the last two, making the average for the 5 miles 11:06. 87F has a heat adjustment of 32 seconds, so should have been at 11:22, given that I'm now using 10:50 for easy pace.