His start Monday at Coors Field, in easily the biggest game for the Padres, won't be one of those games that Peavy looks back fondly on, although he's sure the magnitude of the outcome will stick with him for a while.
"I'm sure it's going to be there for a while," Peavy said. "Watching the postseason when you know you should be a part of it. It was just a tough night."
For both Peavy and the Padres, who saw their season come to an abrupt and unexpected end when the Rockies scored three runs in the 13th inning for a 9-8 victory over San Diego to advance to the National League Division Series.
Peavy, who entered the game with 19 victories, allowed two runs in the first inning and never quite found himself comfortable against a vaunted Rockies lineup that slugged its way to the playoffs by winning 14 of its last 15 games.
Peavy allowed six runs on 10 hits over 6 1/3 innings with four walks and six strikeouts. He allowed two home runs during his 118-pitch outing.
"It's a tough place to pitch and a tough lineup to pitch to," Peavy said. "I felt OK. It's different pitching here than anywhere else. The ball doesn't do things here that it does other places. I didn't make a whole lot of good pitches."
Peavy allowed a double to Kaz Matsui to open the first inning and then an infield single to Troy Tulowitzki. He then walked Matt Holliday on several close pitches to load the bases. Todd Helton hit a sacrifice fly, and Garrett Atkins singled for a 2-0 lead.
Peavy later allowed a home run to Yorvit Torrealba in the second inning and a solo shot to Helton in the third inning.
"I thought he was holding his stuff," Padres manager Bud Black said.
Peavy was hampered by a few defensive plays that could have gone either way in the sixth inning when center fielder Brady Clark -- filling in for an injured Mike Cameron -- was unable to run down two balls that went for triples.
Peavy helped the Padres position themselves for a playoff run in September, as he won four games. He had pitched well against the Rockies this season, posting a 1.29 ERA in two starts.
Peavy was buoyed by the way the Padres got back in the game after trailing 3-0, as San Diego got a third-inning grand slam by Adrian Gonzalez and later a two-run home run from Scott Hairston in the 13th inning for a 8-6 lead.
"You've got to be proud of the way the boys played," he said. "We knew we had our hands full. [Colorado] is the best team in baseball."
Corey Brock is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.