Oregon will open the Pac-12 softball season Friday, March 16, in Eugene with a three-game series against UCLA.  The Ducks finished the pre-season with a 23-4 record, and No. 6 national ranking.  Oregon State ended the preseason with a 17-9 record.  The Beavers open Pac-12 play with a three-game home series against California Friday through Sunday in Corvallis.