Glad I wasn't the only one. In the end, the heat and wind just killed me. I left the 5th rest area fairly well wiped already and by the time I hit the far northern point of the course I was dead -- only to turn back south into the wind. From there to the Erin Elementary stop I don't think that I went higher than my second lowest gear. I sat in the shade at Erin hills, felt a little cramping coming on, looked at the radar on my cell phone, and listened to my concerned wife who had been at the stop to cheer me on and decided to call it quits there knowing the hills that were coming. 72 miles completed my day.
Turned out to be good. They started pulling people from the course because of the weather. I would have been pulled before finishing anyway. Had I pressed on with the suffering, I would have been pissed! Oh well, next year calls . . .