The Blue Devils (15-2, 3-0 Atlantic Coast Conference) overcame a sluggish start to pull away from the Tigers (9-8, 1-2) even though scoring leader Austin Rivers finished with 4 points, more than 10 fewer than his average.
Duke had to overcome a late rally by Clemson, which cut a 13-point lead to 68-64 in the final minute on two 3-pointers by Andre Young. But Dawkins made three foul shots down the stretch as the Blue Devils beat Clemson for the 26th time in the past 28 meetings.
Milton Jennings had 16 points for the Tigers and Devin Booker added 12 points and 13 rebounds.
NO. 5 OHIO STATE 80,
NO. 7 INDIANA 63
In Columbus, Ohio, Lenzelle Smith Jr. more than doubled his career high with 28 points to lead Ohio State (16-3, 4-2 Big Ten) to victory over Indiana (15-3, 3-3).
Jared Sullinger added 16 points for the Buckeyes.
NO. 11 GEORGETOWN 69,
ST. JOHN’S 49
In New York, Hollis Thompson scored all of his 20 points in the second half and Georgetown (14-3, 4-2 Big East) snapped a two-game losing streak with a victory over St. John’s (8-9, 2-4).
NO. 23 CREIGHTON 90,
SOUTHERN ILLINOIS 71
In Omaha, Neb., Doug McDermott scored 25 points and went over 1,000 for his career to lead Creighton (16-2, 6-1 Missouri Valley Conference) past Southern Illinois (6-12, 3-4).
GEORGIA TECH 50
In College Park, Md., Sean Mosley scored 18 points to lead Maryland.
Mosley scored all but two of his points in the second half, and was 10 of 10 from the foul line, as he led Maryland (12-4, 2-1 Atlantic Coast Conference) to its ninth win in 10 games.
Maryland has beaten Georgia Tech (8-9, 1-2) in 11 consecutive regular-season games.
Kammeon Holsey scored 11 points to lead Georgia Tech, which has lost five of its past six games.