Finke scored 19 points, and Aaron Jordan added 15 points for the Illini (14-17, 4-14 Big Ten), who snapped a two-game slide and completed the regular-season sweep of Rutgers.
Illinois' bench outscored Rutgers' reserves 37-5.
Leron Black, the Illini's leading scorer on the season, was saddled by foul trouble for much of the game but did fuel a second-half spurt for Illinois with a pair of 3-pointers. Black finished with 14 points.
The Illini built their first double-digit lead, 64-53, with seven minutes to play. The Scarlett Knights never responded and lost their third straight game.
Corey Sanders led Rutgers with 18 points, and Eugene Omoruyi added 14 points for the Knights (13-18, 3-15 Big Ten), who have dropped 10 of 11 overall.
Rutgers led 26-25 after a layup from Sanders with 5:41 left in the first half. Illinois answered with a 10-2 spurt, capped by a pair of free throws from Finke, and took a 35-30 lead into halftime. Finke had 10 points to lead all scorers in the first half.
Sanders got behind the defense for a breakaway dunk that trimmed the Illinois lead to 48-45 midway through the second half. But that's when Black got going and squashed the Rutgers' rally.
Illinois blew out Rutgers 91-60 on Jan. 30, but lost six of its next seven games and struggled down the stretch of coach Brad Underwood's first season.
The Big Ten tournament tips off Wednesday at Madison Square Garden. Both teams will be in action on Wednesday and could see each other again in the opening game between the No. 12 and No. 13 seeds.
Rutgers honored Candido Sa, Mike Williams, Jake Dadika and Deshawn Freeman before the game for Senior Day.
--Field Level Media
Illinois | Rutgers | |
Michael Finke 19 | Scoring | Corey Sanders 18 |
Trent Frazier 4 | Assists | Corey Sanders 4 |
Da'Monte Williams 8 | Rebounds | Corey Sanders 6 |
Michael Finke 5 | Free Throws Made | Eugene Omoruyi 6 |
Mark Alstork 4 | Steals | DeShawn Freeman 3 |
Mark Alstork 1 | Blocks | Eugene Omoruyi 2 |