Two clubs who have had forgettable seasons send their most consistent pitchers to the mound Wednesday at Coors Field, as San Francisco's Madison Bumgarner and Colorado's Jhoulys Chacin duel in the rubber match of a three-game series.
The Rockies -- winners in eight of their last 10 in Denver -- are amid a nine-game homestand, while the Giants close the season with 25 of their final 31 games against National League West foes.
That familiarity will be on display Wednesday, as Bumgarner and Chacin have faced their opponents many times in 2013. Both are coming off impressive starts the last time they faced their division rivals. Chacin tossed eight scoreless innings against the Giants on June 28, while Bumgarner followed two days later with seven innings of one-run ball against the Rockies.
Seventeen of Bumgarner's 27 starts this year have been of the quality variety, and he's posted a 2.35 ERA in seven second-half starts compared to a 3.02 mark in the first half. Chacin has pitched through the seventh inning six times in his last seven outings.
Bumgarner likely won't see a full-strength Rockies lineup, as center fielder Dexter Fowler is expected to miss his second straight game after bruising his left knee while trying to steal second Monday.
"He's sore," Rockies manager Walt Weiss said. "He's day to day. He's just banged up his knee, but he's still sore."
Giants: Posey rakes at Coors
Catcher Buster Posey has reached base in 49 straight starts against the Rockies, hitting .410. The only start in which Posey didn't reach against Colorado was his first in May 2010.
The reigning NL Most Valuable Player also has a 14-game hitting streak at Coors Field, where he has homered in six of his last 13 games.
• Andres Torres is scheduled to undergo surgery Wednesday to have bone spurs removed from near his left Achilles tendon. He will miss the remainder of the season.
Rockies: Oswalt progressing
Veteran right-hander Roy Oswalt threw four innings and close to 60 pitches in a simulated game Tuesday and said he felt significant progress. He's recovering from a left hamstring injured suffered in early July but is optimistic he can make a few starts this season.
"I'm trying to get back and pitch this year and go from there," Oswalt said. "I'm hoping to come back and start at least four, maybe five games."
Oswalt said he is going to try to throw in a Minor League game this weekend.
• First baseman Todd Helton is three hits shy of 2,500 for his career. Once he reaches the mark, he'll join Stan Musial as the only players to have at least 2,500 hits, 550 doubles, 350 home runs and a .310 career batting average.
• Rookie Nolan Arenado is hitting .321 with seven doubles, two triples and two home runs in 37 games since the All-Star break.
• The Rockies have won seven of the last 11 meetings against the Giants after dropping the first four meetings of the season.
• San Francisco's Hunter Pence has started a NL-leading 141 straight games.