There is a thread over at Gopherhole.com centered around the subject in caption. Within the thread is an interesting discussion of win probabilities for individual games based on an article from SB Nation that is mentioned several times. Here is a summary of the probabilities:
Buffalo 92%; at Oregon State 40%; Middle Tenn State 77%; Maryland 68%; at Purdue 65%; Michigan State 52%; Illinois 76%; at Iowa 35%; at Michigan 13%; Nebraska 52%; at Northwestern 30%; Wisconsin 18%.
Buffalo 92%; at Oregon State 40%; Middle Tenn State 77%; Maryland 68%; at Purdue 65%; Michigan State 52%; Illinois 76%; at Iowa 35%; at Michigan 13%; Nebraska 52%; at Northwestern 30%; Wisconsin 18%.