4.10mi, 41:07, 10 DEC 18, Springfield, Virginia

iThink:
The Bats, "Courage"

WX at 6 AM (11) Dec 10 31.3 (-0.4) 15.6 (-9.1) 30.11 (1019) N 6 RH 51 WC 24 (-4)

Odometer 18: 123.6mi

Z3-Z4. Average/max heart rate = 148/167

Respectable run, for my back hurting. Things were decidedly better on the return leg in spite of the slower splits as it's mostly uphill on the 3rd leg. It was not as chilly as the temperatures might suggest.

Splits

SGMT AGGRG SEGMT PERMI AVGPC DIST
1.20 12:42 12:42 10:35 10:35 1.20
0.84 20:55 08:13 09:47 10:15 2.04
0.85 29:38 08:43 10:15 10:15 2.89
1.21 41:07 11:28 09:29 10:02 4.10