The last team to enter the Final Four without a loss was UNLV in 1991.
Indiana U in 1975.
1975 - The Indiana Hoosiers lost in the Mideast region's final to the Kentucky Wildcats.
Uconn
1976 Indiana Hoosiers
In 1975 Indiana finished the regular season 29-0, but lost to Kentucky in the Mideast Regional final.
1976.
The Panthers have gone undefeated in the preseason in three of the last four years.
George Mason University
the last time was 2004-2005, both auburn and Utah went undefeated. USC won the championship.
1998
The Final Four is present in college basketball. The March madness tournament consists of 65 teams then gets down to 64 teams, then to 32 then to 16 then to 8 then to 4. Those last four teams are considered the final four and are in the semi finals for the title of national champion of college basketball for that year. This year the final four is going to be played in Detroit, and while march madness is going on, soon enough there will be only four teams left, known as the final four.