Boulder, Colo. • Spencer Dinwiddie scored 17 points and No. 21 Colorado beat Elon 80-63 on Friday night for its 10th consecutive win.
Xavier Johnson added 12 points and 15 rebounds for the Buffaloes (10-1), who were coming off a win over Kansas. Josh Scott scored 12, and George King had 10 points.
Sebastian Koch scored 27 points on nine 3-pointers for Elon (5-5), which had won three in a row. Tanner Samson added 12 points.
No. 17 Iowa State 85, No. 23 Iowa 82 • Georges Niang scored 24 points, including the go-ahead basket with 18.8 seconds left, as Iowa State won at home.
Dustin Hogue had 12 points and 16 rebounds for the Cyclones (8-0), who prevailed in the first meeting between the Cyclones and Hawkeyes as ranked teams in 26 years.
Niang gave Iowa State an 83-82 lead on a reverse layup and Iowa's Mike Gesell followed by missing two free throws.
No. 16 Memphis 73, Arkansas-Little Rock 59 • In Memphis, Tenn., Shaq Goodwin scored 17 points and No. 16 Memphis rallied for a victory over Arkansas-Little Rock.
Joe Jackson also had 17 points for the Tigers but was 3-for-11 from the field.
• No. 16 Memphis 73, Arkansas-Little Rock 59
• No. 17 Iowa State 85, No. 23 Iowa 82
• No. 21 Colorado 80, Elon 63