Rocket Watts scored a career-high 23 points and No. 8 Michigan State started out flat against Detroit Mercy but avoided a huge upset, winning 83-76 on Friday night in East Lansing, Mich.
The Spartans (4-0) were coming off a road victory over No. 6 Duke earlier this week.
The Titans (0-1) led by five midway through the second half of a closely contested game with 10 lead changes and nine ties. Detroit Mercy's last road victory over a top-10 team was in 1979 at Marquette with future NBA players, including Earl Cureton and the late Terry Duerod.
Detroit, playing its first game after having three canceled because of COVID-19 issues, was led by Antoine Davis, who scored 24 points on 10-of-26 shooting while playing for his father, former Indiana coach Mike Davis.
Michigan State's Gabe Brown scored 16 points, Aaron Henry had 12 points and 10 rebounds, and Joey Hauser added 10 points.
Purdue 68, Valparaiso 61: Isaiah Thompson scored eight of his 14 points in the last 5:32, Sasha Stefanovic scored 19 points and the host Boilermakers (3-1) beat the stubborn Crusaders (0-3) after trailing for most of the game. Valpo, which hasn't beaten in-state rival Purdue since 1965, led 34-23 at halftime.
Maryland 90, St. Peter's 54: Hakim Hart scored 20 of his 33 points in the second half and the host Terrapins (4-0) routed the Peacocks (2-2). Hart, who combined for 28 points in 18 games as a freshman last season, shot 11-for-13 from the floor, with five three-pointers and four steals.
• No. 5 Illinois' game Saturday vs. Tennessee-Martin was canceled Friday because of COVID-19 cases in the Skyhawks program, three days after the game was added to the Illini schedule.
No. 6 Duke 76, Bellarmine 54: Matthew Hurt (Rochester John Marshall) scored 24 points and accounted for six of 13 three-pointers for the Blue Devils (2-1), who used a 19-2 run in the second half.
Duke hit only five three-pointers Tuesday in its loss to Michigan State.
Hurt finished 9-for-12 from the floor, including 6-for-8 from long range. He was one point short of tying his career high.
Bellarmine, a Catholic school in Louisville, Ky., was making its Division I debut.
No. 15 Virginia 71, Kent State 64 (OT): Sam Hauser scored six of his 18 points in overtime as the host Cavaliers (3-1) avoided a second upset by an unranked, nonconference foe, beating the Golden Flashes (1-1). Virginia thought it had won in regulation, but after Kent State missed three three-point attempts and kept rebounding the ball, Danny Pippen swished a three at the buzzer, forcing overtime.
No. 5 Louisville 116, No. 20 DePaul 75: The Cardinals (3-0) broke the program scoring record in a romp of the Blue Demons (1-2) in the Jimmy V Classic in Uncasville, Conn. Hailey Van Lith and Kianna Smith each had 21 points for Louisville, which was supposed to play UConn in this game.