Bloomington, Ind. ? Duke’s J.J. Redick was more efficient than Indiana’s Marco Killingsworth, and he had more help.

Redick scored 29 points and Shelden Williams added 13 before fouling out as No. 1 Duke held off No. 17 Indiana 75-67 in the ACC-Big Ten Challenge on Wednesday night.

Duke (6-0) is now 7-0 in the showcase event.

Killingsworth had a career-high 34 points for Indiana (3-1).

No. 4 Villanova 86, Rider 57

Trenton, N.J. – Allan Ray scored 21 points and Kyle Lowry added a career-high 20 as Villanova (3-0) cruised past Rider (1-3).

No. 13 Michigan St. 88, Georgia Tech 86

East Lansing, Mich. – Paul Davis scored 22 points as Michigan State (4-2) surived a desparation shot by Georgia Tech (2-2) as time expired in the ACC/Big Ten Challenge.

No. 6 Gonzaga 89, Portland St. 80

Spokane, Wash. – Adam Morrison scored 34 points as Gonzaga (4-1) beat scrappy Portland State (3-3).

No. 9 Memphis 97, Jackson State 70

Memphis, Tenn. – Rodney Carney scored 25 points and matched his career-high with six 3-pointers to lead Memphis (5-1) past Jackson State (1-4).

No. 14 Iowa 45, No. 24 NC State 42

Iowa City, Iowa – Adam Haluska scored 18 points and Iowa (5-1) held on for a victory over North Carolina State (5-1) in the ACC-Big Ten Challenge.

No. 19 G. Washington 85, St. Francis, Pa. 68

Washington – J.R. Pinnock scored 20 points as George Washington (3-0) beat St. Francis (2-4).

No. 23 Maryland 83, Minnesota 66

College Park, Md. – Travis Garrison had 18 points and 10 rebounds, and Maryland (5-1) overwhelmed Minnesota (2-2) in the ACC-Big Ten Challenge.