Payton II had 24 points, five rebounds, four steals and a school-record seven blocks in the win over Colorado. He punctuated the win with two monster dunks after drilling a contested 3-pointer at the first half buzzer.
"That last dunk, the big fella (Tinkle) said, 'Go ahead,'" Payton II told the Oregonian, "so I've gotta listen to him."
Malcolm Duvivier scored 17 points and Daniel Gomis added 10 points and four blocks for the Beavers (17-10, 8-7 Pac-12), who snapped a three-game losing streak.
Colorado fell to 12-14, 5-9 in conference.
"We just didn't have that fight, that competitiveness," said Colorado Coach Tad Boyle.
Oregon State took it away in the first half. Oregon State's zone defense was something Colorado could not solve -- they started the game ice cold, shooting 1 of 16.
"That defense in the first half was some of the best defense we've played all year," Tinkle said.
Oregon State shot 48.9 percent for the game, compared to the Buffaloes' 34.6 percent. Colorado also had 22 turnovers.
Colorado tried to make it interesting late in going on a run - a 3-pointer for the Buffaloes made the score 54-46 with 3:45 left. Duvivier responded with a 3-pointer on Oregon State's next possession to end the threat.
Askia Booker entered the contest leading the Buffaloes with 17.4 points per game. Shadowed by Payton much of the night, he had nine points on 2-for-14 shooting.