(Undated) -- Number-16 Oregon whipped Portland State 84-57 in Eugene in the season basketball opener for both schools. Payton Pritchard scored 18 of his 22 points in the first half to lead the Ducks. Holland Woods led Vikings' scorers with 13 points. In other area college openers, Oregon State topped UC Riverside 72-59 in Corvallis. Tres Tinkle led the Beavers with 19 points, while Stephen Thompson Junior had 18. The Portland Pilots outscored the Multnomah Lions 111-103 at Chiles Center.