Oregon hosts No. 1 UCLA in the final Pac-12 baseball regular season series in Eugene Thursday through Saturday at PK Park.  Thursday & Friday at 6 p.m. and Saturday at 4 p.m. all on the Pac-12 Networks.   Oregon State ends the regular season with a series at home in Goss Stadium, Corvallis, against USC Thursday & Friday at 6 p.m., and noon Saturday, all on the Pac-12 Networks.