Notes
At the Alpharetta Big Creek Greenway, doing 10 easy, with miles 2 - 10 average pace: 10:45.1 and average HR: 115.7
With actual temp 84 and dew point 65 we have TDP 149 = adjustment 1.0435. So 10:45 / 1.0435 = 10:18 pace effort put in.
Note that the 920xt measured 10.23 miles as opposed to this entry of the 310xt, so it was 0.06 miles short or 0.0058 = 0.58% or a bit over half a percent.