"We executed perfectly," Kansas coach Bill Self said. "Travis [Releford] set a great screen and Ben was fortunate, because he didn't call glass, I'm sure."
McLemore added another three to open the extra 5 minutes, and Releford and Jeff Withey made five consecutive free throws to help put the game away.
In other games *
At Michigan, Glenn Robinson III had 14 points, including a pair of crucial dunks in the second half, and the No. 2 Wolverines (16-0, 3-0 Big Ten) equaled their best start to a season with a 62-47 victory over Nebraska.
* At Seton Hall, Gorgui Dieng had 16 points and 14 rebounds - both season highs - to lead No. 3 Louisville (14-1, 2-0 Big East) to its ninth straight win, 73-58.
* At New Mexico, Alex Kirk scored 23 points and the No. 25 Lobos (14-2) held off No. 24 UNLV, 65-60. Khem Birch and Anthony Bennett led the Runnin Rebels (13-3) with 12 each.
* At Providence, C.J. Fair had 23 and 11 rebounds, as No. 7 Syracuse (15-1, 3-0 Big East) rallied from a nine-point, first-half deficit to beat the Friars, 72-66.
* At Florida, Mike Rosario scored 19 points, Erik Murphy added 11 despite playing with a broken rib and the No. 11 Gators (11-2, 1-0 Southeastern Conference) routed Georgia, 77-44.
* At Illinois, Joe Coleman had 29 points and No. 8 Minnesota (15-1, 3-0 Big Ten) defeated the No. 12 Fighting Illini, 84-67. Illinois (14-3, 1-2) got 21 points from Brandon Paul.
* At North Carolina State, Lorenzo Brown had 21 points and 10 assists and the No. 20 Wolfpack (13-2, 2-0 Atlantic Coast Conference) pulled away late to beat Georgia Tech, 83-70, for its ninth straight win.
* At Wichita State, Cleanthony Early score 39 points and the Shockers (15-1, 4-0, Missouri Valley) beat Southern Illinois, 82-76.
North Carolina junior Leslie McDonald is uncertain to play Thursday night against Miami because of a right knee injury.
* Duke senior forward Ryan Kelly is out indefinitely with a right foot injury, suffered in a game Tuesday night.