Probably in the Marty Fletcher years when we beat Oklahoma in the 1992 NCAA's. I don't know if they were in the Top 10 at that time. His teams also beat Oklahoma in Norman, Cincinnatti, Kentucky and Memphis. I don't know if any of those games occurred however when the opponent was in the Top 10. I do know that Georgetown was ranked 2nd in the nation when we beat them in the first round of the Great Alaskan Shootout on the Friday in November of 1981. That may be the last time we defeated a team ranked in the Top 10.