17 teams have gone undefeated in the regular season and of those only 1 (Indiana in 1976) has gone on to win the National Championship.
1986 SUNY Potsdam (32-0) 1995 Wis.-Platteville (31-0) 1998 Wis.-Platteville (30-0)
The original NCAA Division 1 College Basketball Tournament 1939 field consisted of 8 teams.
Kentucky defeated Utah, 78-69, in the finals to win the 1998 NCAA Division I men's basketball tournament.
University of Louisville
The NCAA Tournament and The NIT tournament
Yes the Indiana Hoosiers but I do not know the year
There are 265 teams in Division II of college basketball. In comparison, there are 325 in Division I, and 325 in Division III.