Ben McLemore scored 18 points, Jeff Withey added 13 points and nine rebounds, and No. 3 Kansas shut down Oklahoma in a 67-54 victory Saturday that pushed the Jayhawks' winning streak to a nation-leading 17 games.
Withey had four blocks and three steals, and Travis Releford added 10 points for the Jayhawks (18-1, 6-0 Big 12), who won their 33rd straight at Allen Fieldhouse to match the fourth-longest home winning streak in school history.
Kansas opened a 29-21 lead at halftime and never was threatened in the second half, holding the Sooners to 35 percent shooting for the game.
Romero Osby and Amath M'Baye scored 12 points each to lead the Sooners (13-5, 4-2), who were dominated on the offensive and defensive glass. Steven Pledger added 10 points.
Oklahoma has lost 10 straight to the Jayhawks dating to 2006, and hasn't won at the Phog since the Sooners beat then-No. 6 Kansas as an unranked team during the 1993 season. Coach Lon Kruger fell to 5-13 against the Jayhawks, many of those losses coming with Kansas State.
It was the 800th game played at Allen Fieldhouse, just down the Interstate from Kemper Arena in Kansas City, where 25 years ago the Jayhawks beat the Sooners for the national championship.
Neither team looked Final Four-worthy in the first half Saturday, though.
The Jayhawks were 1 of 6 from beyond the arc and committed eight turnovers, three by Releford. So even when Kansas managed to build a lead, going up 24-14 on McLemore's putback with 5:30 left in the first half, the Jayhawks couldn't establish too much separation.
Oklahoma didn't do a whole lot to help itself, either.
The Sooners got within 29-21 at halftime on a 3-pointer by Pledger, but they still shot just 28 percent from the field. Their 21 points were a season low for any half.
Things didn't start off a whole lot better after the break. Osby missed the Sooners' first five shots, and their first field goal didn't come until M'Baye's jumper at the 16:14 mark.
Kansas kept its lead hovering around 10 points for much of the second half. Elijah Johnson's driving layup for his first basket made it 37-27, and his 3-pointer with 11:35 remaining gave the Jayhawks a 42-31 lead, matching their biggest of the game.
The Jayhawks had pushed the lead to 45-39 on McLemore's 3-pointer with 4:10 left when the Sooners went on their last run. Consecutive baskets by Buddy Hield and M'Baye trimmed the lead to 10, but Johnson's 3-pointer and another by McLemore put the game away.
It was the 14th time in 19 games that Kansas held an opponent to 60 points or less, including the past five Big 12 foes. The Sooners had been averaging nearly 72 points in Big 12 play.