After Kenyon Yovan's complete game Friday, Oregon had Matt Mercer on the mound with a rested bullpen behind him.
The pitching plan did not go as Ducks coach George Horton expected when Arizona defeated the Ducks 11-4 on Saturday in front of 1,534 who showed up at PK Park for the final baseball game of the season.
"Kind of a microcosm of the entire year, a little frustrating," Horton said. "As soon as we got knocked on our rear ends, we didn't do much about it."
Mercer, who was UO's No. 1 starter most of the season, walked five batters while allowing four earned runs in 4 1/3 innings. Oregon's top two relievers, Parker Kelly and Ryne Nelson, combined to give up seven earned runs in three innings.
"We gave away too much," Horton said. "Twelve free bases and I don't know how many two-strike pitches they crushed. Lots of balls, a four and one-half hour game. From the fifth inning on, they just dominated us."
After Arizona got a run in the first inning, the Ducks tied the game in the second when Daniel Patzlaff led off with a single. He was sacrificed to second and went to third on a ground out before scoring on an infield single by Jakob Goldfarb.
The Ducks (26-29, 12-18 Pac-12) went ahead 2-1 in the third when Spencer Steer led off with a double and Jonny DeLuca drove him in with a two-out single.
The Wildcats knocked out Mercer during a three-run fifth inning that put them ahead 4-2.
Cal Stevenson singled with one out before Cameron Cannon and Alfonso Rivas each walked to load the bases. Cesar Salazar singled in a run before Nick Quintana delivered a two-run double.
Oregon got a run in the fifth after Goldfarb walked and Kyle Kasser singled him to third. Yovan hit a one-out single to score Goldfarb as Oregon closed within 4-3 before DeLuca and Gabe Matthews both struck out to end the inning.
The Wildcats scored twice in the sixth, once in the seventh, and four times in the eighth.
Goldfarb, Steer, and Yovan each had two of 10 hits for the Ducks, who finished with their worst record since 2009 and tied USC for eighth place in the conference for the second year in a row.
"It was a tough journey, on the scoreboard and our overall record and our place in the conference was crummy," Horton said.