years, most likely had similar or worse odds to win. Going back further, clearly the Miracle Bowl, and maybe a couple of utah games. These are the ones that come to mind.
Going the other way, that 99-yard TD drive by Air Force in the final minute in 1982, plus the 2-point conversion to win 39-38, was the highest BYU win probability that I can remember them blowing. I still can't believe Air Force won that game. In Provo, even.