Zack - 9.5

71:10 (7:29)

27 min wu at Amazon with Luke and Renee.

4 mi tempo on the bark: 6:27, 6:08, 6:18, 6:01 = 24:54 (6:13/mi)

400m in 77, 200m in 36. Cooldown.

Definitely a challenge in the dark and with erratic pacing, but felt strong and under control.