CORVALLIS — Joe Burton scored a career-high 21 points and Oregon State pulled away from Montana State in the second half Sunday for a 78-65 win.
Ahmad Starks added 14 points and nine rebounds for Oregon State (4-1), which also got 11 points and 10 rebounds from Eric Moreland.
Antonio Biglow scored 14 points and Flavien Davis had 12 points and nine rebounds for Montana State (1-3).
Oregon State was playing its first game without center Angus Brandt, who went down with a season-ending right knee injury in the Beavers' 66-58 win against Purdue on Nov. 16 in New York.
Brandt, a senior, averaged 11.3 points and 8.5 rebounds in Oregon State's first four games.
"Angus is a big part of the team. He just brings a lot of energy, even off the court," said Burton, emotional about his teammate's injury. "It was just hard seeing him on the sideline with crutches knowing I'm not going to play with him this season."
Burton, a 6-foot-7 center, also had a season-high 10 rebounds and three assists in 28 minutes. Moreland had his second double-double of the season.
"After it's evident for a week-and-a-half now that (Brandt) isn't going to be with us, everybody feels the pressure of having of having to do a little bit more," Oregon State coach Craig Robinson said. "It was very nice for Joe to have such a good game the first day without Angus."
Xavier Blount's 3-pointer with 17:44 left helped Montana State cut a 14-point halftime deficit to 47-38.
The Bobcats came within 58-51 with 11:13 remaining after Blount made a pair of free throws. The Beavers' Olaf Schaftenaar answered with a 3-pointer to restore the double-digit lead.
Montana State came no closer than eight points after that. Oregon State went on to lead by as many as 18 points.
The Bobcats took a 6-0 lead and stayed ahead until Roberto Nelson's dunk put the Beavers ahead 17-16. Burton added a steal and basket to cap Oregon State's 9-0 run.
Oregon State took the lead for good at 25-24 on Moreland's free throw. The Beavers ended the half on an 11-2 run — including six points by Burton — to lead 45-31.
Burton was just two points short of his previous career high with 16 at halftime.
Oregon State had a 51-42 rebounding edge and shot 47 percent while Montana State made just 30 percent of its shots.