UO & OSU sports, May 13 Civil War bb Oregon State hosts Oregon in a Pac-12 three-game baseball series in Corvallis Friday through Sunday. Pac-12 sb Oregon wrapped up its fourth straight Pac-12 softball title Thursday night in Eugene with a 5-1 win over visiting Utah. The Ducks (42-7, 18-3) play the Utes again Friday and Saturday. Oregon State beat Arizona State 1-0 in Corvallis Thursday night. The two will play again Friday and Saturday. Pac-12 tr The Pac-12 Track & Field Championships take place Saturday and Sunday at the University of Washington in Seattle, WA.