re: What was the best upset your team pulled off

Ole Miss over Florida 2008, 20+ point underdog having just lost to Vanderbilt at home, down 10 at the half to boot, no business pulling that one out.

1997 LSU, scholarship depleted squad s/p probation beat #7 LSU, was to be beginning of the end of Dinardo era as he and his then DC had a major falling out afterward which resulted in his leaving and being replaced by Lou Tepper.