<Li> 1980--No. 2 Louisville (champion), No. 5 Iowa, No. 6 Purdue, No. 8 UCLA </Li> <Li> 2006--No. 2 UCLA, No. 3 Florida (champion), No. 4 LSU, No. 11 George Mason </Li> <Li> 2011--No. 3 Connecticut (champion), No. 4 Kentucky, No. 8 Butler, No. 11 VCU </Li> <P> Since 1985, there have been 4 instances of three No. 1 seeds reaching the Final Four; 13 instances of two No. 1 seeds making it; and 14 instances of just one No. 1 seed reaching the Final Four . </P>

When was the last time a number one seed didn't make the final four