LAWRENCE, Kan. (AP) -- Mario Chalmers had 13 points and No. 3 Kansas held Colorado's Richard Roby to just two Saturday in a 69-45 victory, the Jayhawks' 25th straight at home over the Buffaloes.
The Jayhawks (24-2, 9-2) solidified their slim lead in the Big 12 by scoring 23 points off turnovers and outrebounding the overmatched visitors 38-24.
Marcus Hall had 15 points for Colorado (10-14, 2-8), which has lost nine of its last 11.
Roby, the 6-foot-6 senior who had averaged 18 points in three games at Allen Fieldhouse and had a 30-point effort here last season, was guarded mostly by Darrell Arthur. He missed his first seven shots and wound up 1-of-11 from the field. Roby, who has led Colorado in scoring the last three seasons, is 0-8 against the Jayhawks. In Lawrence, his teams have lost by 23, 21, 29 and 24 points.
At halftime, the sellout crowd of more than 16,000 came to its feet and remained standing as more than 200 former coaches, players and trainers filed onto the court to be recognized as part of Kansas' celebration of 110 years of varsity basketball.
Kansas led 32-20 at halftime and put the game away with a 13-0 run in the second half. Brandon Rush, playing his third game without the heavy knee brace he wore after ACL surgery, got the run started and brought a big laugh from the crowd when he lunged for an offensive rebound and lost control of the ball only to have it crash off the backboard and through the net.
Darnell Jackson had 12 points for Kansas.
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