"I feel like all season, whenever we've come out for the second half, we've dominated," said linebacker Boseko Lokombo.
UCLA gained just 94 second half yards, converted five first downs and only moved the ball past midfield as the clock drew to zero.
All of that equated to a second half shutout.
"I'm very happy with the way we came out and played in the second half," said defensive coordinator Nick Aliotti.
Heralded sophomore QB Brett Hundley showed flashes with his legs, but little with his arm, gaining more yards on scrambles than on his 19 pass attempts.
Hundley and the Bruins longest play from scrimmage came in the second quarter, when he eluded a trio of Duck defenders and sprinted 33 yards down field to the Oregon 27 yard line.
But Lokombo jumped a route three plays later to end the threat.
"He made some plays out there, but at the end of the day we got the 'W'," said Lokombo, who was also credited with two sacks.
The Oregon defense wasn't all of that bad in the first half either, allowing 189 yards, with both UCLA touchdowns coming on short fields.
"We really didn't play a bad first half," said Aliotti.
But a gear was shifted, a notch turned up in the second, and the result drew high praise from Aliotti.
"I thought we played as good of defense as we have played in a long time and we needed it for a while."
Aliotti couldn't give a reason for the improvement, saying nothing was tweaked and that there was no "secret" to the success.
"We just kind of figured out what they were doing," defensive tackle Taylor Hart. "They threw their best punches in the first half and we just kind of settled down and played how we know how to play."
Avery Patterson had arguably the game's biggest momentum changer on the fourth quarter's first play. Patterson caught Hundley off-guard, leaping in front of a deep throw on a 3rd-and-20 to end a Bruin threat.
"We dropped eight [players] into coverage and I don't think the quarterback knew what he was seeing and he threw it up there," he explained.
The Oregon offense would go on to score their first of three fourth quarter touchdowns from there.