Marcus Mariota threw for two touchdowns and ran for another and No. 2 Oregon defeated California 55-16 on Saturday night in the rain-drenched Pac-12 opener for both teams.

Bralon Addison returned two punts for touchdowns and Byron Marshall ran for 130 yards and two more scores for the Ducks (4-0, 1-0).

The game was played as a strong storm swept across the Pacific Northwest, cutting power to more than 26,500 customers in Oregon. It was a sloppy mess on the field, with eight fumbles — four for each team — in the first half alone. The Ducks handled the soggy conditions better, building a 41-3 halftime lead.

The driving wind and rain all but shut down the "Bear Raid" offense that new head coach Sonny Dykes has installed at Cal (1-3, 0-1).