The Volunteers won a school-record 27th game and also claimed their first outright regular-season Southeastern Conference championship in 41 years. Tennessee received an assist in its bid for the league title earlier in the evening when Mississippi State fell to Vanderbilt.
Tennessee had to come back from a 16-point deficit with Smith scoring 23 points and Chris Lofton adding 21. The Volunteers (27-3, 12-2 SEC) broke the school record for most wins in a single season (26) set by the 1999-2000 team.
Nick Calathes scored 24 to lead two-time defending national champion Florida (21-9, 8-7). The Gators are in danger of missing the NCAA tournament for the first time in 10 years.
Wayne Chism gave Tennessee a three-point lead by making two free throws with 18 seconds remaining. Calathes had a chance to tie it just before the buzzer, but his three-pointer bounced off the rim.