Heat Chamber 1:02:00  8.0 mi (7:45 / mi)
shoes: Hoka Carbon X
50% humidity, 1000m altitude, 31-31.7ºC
Incline set at 3% started at 7.7mph increased to 8mph after 25mins, reduced gradually after 48 mins to 7.5 to keep HR at about 164. I was fairly comfortable throughout, slightly hard in last 15 mins.