Smith finished with 24 points for Louisville (20-5, 8-4 Big East), which dominated the paint 32-16 against St. John’s (15-10, 7-6).
Peyton Siva added 12 points, Chane Behanan 10 and Gorgui Dieng 10 with a career-high 17 rebounds for the Cardinals.
NO. 13 OHIO STATE 69, NORTHWESTERN 59
In Columbus, Ohio, Deshaun Thomas scored 22 points and Ohio State (18-6, 8-4 Big Ten) used a late 12-0 run to beat Northwestern (13-12, 4-8), the Buckeyes’ 32nd consecutive home win against the Wildcats.
Lenzelle Smith Jr. added 12 points – all in the first half – with Sam Thompson getting 11 and Amir Williams had a career-high 10 for the Buckeyes.
Pesky Northwestern led throughout the second half despite having only seven scholarship players because of injuries.
MINNESOTA 58, NO. 20 WISCONSIN 53 (OT)
In Minneapolis, Andre Hollins hit the go-ahead 3-pointer midway through overtime to finish with 21 points and lead Minnesota (18-7, 6-6 Big Ten) over Wisconsin (17-8, 8-4).
It marked the third consecutive game that Wisconsin went to overtime.
Austin Hollins added 11 points for the Gophers, who held the Badgers without a basket for about 11 minutes until Jared Berggren’s putback with 10 seconds left in the extra period. Hollins went 4 for 4 from the free throw line over the final 18 seconds of overtime to seal it.
LOUISIANA STATE 64, SOUTH CAROLINA 46
In Columbia, Johnny O’Bryant had a career-high 30 points and 10 rebounds as Louisiana State (14-8, 5-6 Southeastern Conference) won for the fourth time in five games with a victory over South Carolina, saddling first-year Gamecocks coach Frank Martin with a five-game losing streak – the longest of his college career.
O’Bryant, a 6-foot-9 sophomore, led the inside game for the Tigers, making 13 of 19 shots. It was the most points scored by a LSU player since Tasmin Mitchell had 38 against Auburn in 2010. O’Bryant reached double figure points and rebounds for the seventh time in the past eight games.
Lakeem Jackson scored 10 points to lead the Gamecocks (12-12, 2-9) and was South Carolina’s only player in double figures.
GEORGIA SOUTHERN 78, THE CITADEL 57
In Charleston, S.C., Cleon Roberts scored 20 points, and Georgia Southern (11-15, 5-8 Southern Conference) led by 18 points at halftime and rolled past The Citadel (6-18, 3-11).
Eric Ferguson had 14 points, Brian Holmes 11 and C.J. Reed 10 for the Eagles, who snapped a two-game losing streak.
Georgia Southern avenged a 70-55 loss to The Citadel on Jan. 19, which snapped the Bulldogs’ 12-game losing streak.