Notes
At the Alpharetta Big Creek Greenway doing 8 easy with the 920xt. Stopped to chat with a friendly woman with a German Shepard and accidentally hit the lap button, so that messed up the laps. The 920xt measured 8.15 miles instead of 8.31 and so only showed an average pace of 11:14. :-( That is over a half a mile for a marathon distance.
Temp 66, dew point 50 = TDP 116. So, 11:01 / 1.0085 = 10:55 heat adjusted pace. Legs weren't very zippy today.