Associated Press Photo
EUGENE, Ore. (Sports Network) - Marcus Mariota threw for 307 yards and four touchdowns, as No. 4 Oregon trounced Tennessee Tech, 63-14, in the Ducks' final warmup before their Pac-12 opener.
Mariota completed 21-of-28 passes with an interception, while De'Anthony Thomas gained 134 yards from scrimmage and scored twice for the Ducks (3-0), who once again built a big lead and rested their regulars after halftime.
Oregon gets its first true test next Saturday when nationally-ranked Arizona visits Autzen Stadium.
The overmatched Golden Eagles (2-1) were ranked seventh nationally in the FCS in total offense coming in, but netted just 176 yards to Oregon's 652.
Tennessee Tech actually held a lead after recovering a fumble on an early punt return, as Tre Lamb hit Da'Rick Rogers for a 23-yard touchdown just 1:57 into the game.
But Lamb wound up with just 46 yards on 8-of-13 passing, and was mostly a bystander as Oregon scored the next 49 points.
Mariota went 3-for-4 for 62 yards on the Ducks' first march, which ended with Kenjon Barner running in a one-yard score.
The Golden Eagles reached midfield on their next drive before punting, and Thomas ran 59 yards for a TD midway through the opening frame.
On the next Oregon possession, Thomas took a pass 49 yards before getting stripped near the goal line. Oregon offensive lineman Jake Fisher fell on the ball in the end zone to make it 21-7.
Kiko Alonso's interception and 41-yard return helped set up Colt Lyerla's four-yard touchdown catch early in the second, and Thomas' 16-yard grab in the final seconds of the half opened up a 35-7 cushion.
Mariota only played the opening drive of the second half and hit Keanon Lowe for a 38-yard gain on the first play. On 3rd-and-goal from the three, Mariota and Lowe hooked up again for a touchdown.
An interception by Dior Mathis preceded Oregon backup quarterback Bryan Bennett's four-yard TD run just 4:25 into the third quarter.
Darian Stone took over for Lamb under center and threw a six-yard touchdown pass to Doug Page later in the third.
Bennett and Byron Marshall each ran for another TD to close out the rout.