There's also the chance for some movement among the Pac-12 hosts. Oregon was swept in its final series at Oregon State, which cost the Ducks a shot at the regular-season league title and possibly a national seed. Arizona claimed a share of the conference title, losing the automatic bid to UCLA based on the teams' head-to-head series. Oregon won the head-to-head series against Arizona and has a better overall résumé, which should keep the Ducks ahead in the national seed chase.