Krzyzewski, the third winningest active coach, improved his career record to 787-262 and broke a tie with Lefty Driesell. Next is San Francisco's Eddie Sutton with 798 career wins.
DeMarcus Nelson and Greg Paulus each scored 13 points and helped the Blue Devils (12-1) beat Temple for the eighth consecutive time.
NO. 1 NORTH CAROLINA 93, NORTH CAROLINA-ASHEVILLE 81
In Chapel Hill, N.C., Tyler Hansbrough scored 23 points and Wayne Ellington added 19 to lead North Carolina.
Hansbrough, who reached the 20-point mark for the eighth time in nine games, started the Tar Heels' decisive 13-4 second-half run with a momentum-shifting dunk over the nation's tallest player, 7-foot-7 Kenny George.
Ty Lawson scored 17 points and reserve Danny Green had 12 of his 14 in the first half for North Carolina (16-0), which never trailed in completing its first perfect nonconference regular season since 1998.
NO. 17 DAYTON 92, RHODE ISLAND 83
In Dayton, Ohio, Brian Roberts scored 23 points and Dayton withstood a furious second-half rally by Rhode Island in the Atlantic 10 opener for both teams.
Dayton (13-1) used its depth and a balanced scoring attack to turn back the Rams (14-2), with four Flyers finishing in double figures.
NO.20 PITTSBURGH 79, SOUTH FLORIDA 66
In Tampa, Fla., Sam Young scored 16 of his 22 points in the second half, and Pittsburgh rebounded from losing its Big East opener.
Keith Benjamin added 20 points for the Panthers (13-2, 1-1).
NO. 24 XAVIER 83, ST. BONAVENTURE 68
In Cincinnati, B.J. Raymond and C.J. Anderson each scored a career-high 21 points, and Xavier Xavier (13-3, 1-0 Atlantic 10) overcame a sluggish performance to earn its fifth consecutive win.