CORVALLIS, Ore. -- Roberto Nelson tied a career high with 34 points as Oregon State pulled away from Chicago State in the second half Sunday for an 87-77 win.
Nelson scored 20 points in the second half and set a new career high with six 3-pointers. He has 12 3-pointers in the last three games.
Devon Collier added 25 points and eight rebounds for Oregon State (7-2).
Quinton Pippen had 13 points and seven rebounds for Chicago State (3-9).
Oregon State used a 7-0 run early in the second half to build on its eight-point halftime lead. Nelson scored the last five of that run at the free-throw line to put the Beavers up 57-41 with 15:46 left.
Nelson's third 3-pointer in about two minutes made it 68-47 with 11:53 remaining.
The Beavers led by as many as 23 in the second half, and Chicago State got no closer than 10.
Maryland point guard Melo Trimble, considered a lock to leave the program before struggling in the second half last season, has withdrawn from the NBA draft and will return for his junior season.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.