Dorian Thompson-Robinson’s confidence in his and his teammates’ ability was certainly a big reason for the 6-0 start. The fifth-year UCLA quarterback had the Bruins rolling into a top-10 matchup with Oregon on Saturday.

And while UCLA’s offense played well — averaging 6.5 yards a play and scoring on six of its seven possessions — the Bruins were helpless to stop Oregon’s offense. The Ducks, behind a strong performance from quarterback Bo Nix, shredded the Bruins’ defense to the tune of 45 points in a 45-30 win.

In the wake of the Bruins’ first loss of the season, Thompson-Robinson’s confidence remained.

“They are a really good team, a really great-coached team,” DTR said after the game. “But at the end of the day, I think if we would have done our jobs to our best abilities, they wouldn’t have been able to hang with us on that field.

“I truly think it just comes down to us and what we do on a day-to-day basis Monday through Friday.”

Thompson-Robinson said he didn’t think the environment had much to do with the Bruins’ play, but he did think there were self-inflicted mistakes that hurt the team.

The Bruins had five penalties for 60 yards, including a holding penalty on their first possession that negated a touchdown. An onside kick was given up in the second quarter that flipped the game from a back-and-forth affair to more of one side chasing the other. UCLA’s secondary got beat several times for big plays as well.

UCLA has wins over Washington and Utah already — two teams that were both ranked in the top 15 at the time of the game — but this will certainly pour some cold water on the hype train that had been picking up steam in recent weeks. They’ll have another chance to pick up a marquee win against USC on Nov. 19 at the Rose Bowl.

But that doesn’t prevent DTR from feeling like they let one get away from them.

“For me personally, it sucks. I came back with the expectations being very high for myself as well as this team,” he said. “When we don’t meet those expectations, obviously it hurts. I think it’ll fuel us stronger than ever, especially myself. I’m pissed off right now. I want to go back and get out there and play again and again and again and again. I’m looking forward to Monday.”

The Bruins (6-1, 3-1 Pac-12) host Stanford next Saturday.

“We’ve got to really dig deep and come back on Monday ready to work,” Thompson-Robinson said. “There’s gonna be a lot of negatives on the film come Monday and Tuesday.”