running (neighborhood hot humid) 42:41 [3] 4.0 mi (10:40 / mi)
shoes: Nike Pegasus 34
It sure felt a lot hotter than 91 degrees when I shuffled along. My stride was really off but I just pushed on until it smoothed out. My red heat light was on from about a mile on but I played mind games to distract myself...counting strides...doing small surges of 10 strides or so...jumping off sidewalk onto grass, etc. It worked.