SAN DIEGO -- Finally, Edinson Volquez got his first win with San Diego, and the Padres became the last NL team to get to 10 victories.
"About time," said Volquez, acquired from Cincinnati in the offseason. "It feels good. I don't care how I win the game, but I want to win."
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Volquez (1-2) allowed two runs and five hits in 5 1/3 innings, struck out five and walked four. His ERA went up slightly, to 2.98.
"Tonight I wasn't sharp like my last three games," Volquez said. "It happens sometimes. Sometimes you feel like you have nothing and tonight was one of those days. The bullpen came on and did a pretty good job."
He allowed a run in the sixth on two singles and a walk before being relieved by Joe Thatcher with runners on first and second and one out. Thatcher struck out Todd Helton before Brad Brach came on and caught Michael Cuddyer looking at strike three. Carlos Gonzalez singled in a run that inning to pull the Rockies to 3-2.
"Good 'W' for Eddie. He deserved it. He pitched well," manager Bud Black said. "He battled his tail off today. Found a little bit of a groove in the middle of the game ... then it sort of left him again. But he battled. He really couldn't find the consistency of any of his pitches. It just goes to show you how this game it. He ended up getting the win on probably one of those starts where he wasn't his sharpest.
"That was a typical Petco game where it comes down at the end to relief work or a big hit, and today was relief work, and the Rockies didn't get the big hit," Black said.
The Rockies were held to five hits.
"That's not enough to win a game here," Rockies manager Jim Tracy said, "especially when you have two guys that have two hits each."
The Rockies lost their fourth straight and their shaky rotation took another hit. Left-hander Drew Pomeranz left with a bruised right quad in the fourth, two innings after he was hit by a line drive by Volquez.
Pomeranz stuck around long enough to hit his first career home run, driving a ball off the facade of the second-deck in left field off Volquez with one out in the third.
Pomeranz was hit on the right leg by Volquez's liner with one out in the second. He fielded the ball and threw out Volquez. He was checked by the trainer and stayed in the game.
Tracy said he doesn't think Pomeranz will miss his next start.
Pomeranz (0-2) was the fourth consecutive Rockies starter who failed to reach the sixth inning. He allowed three runs and five hits in three innings, walked three and struck out two.
Alonso singled in runs in the first and third innings. Another run scored in the second on a wild pitch.
Dale Thayer pitched the ninth for his second career save and first since his major-league debut on May 22, 2009, at Florida while with Tampa Bay.
The Rockies rescinded the option to RHP Jhoulys Chacin to Triple-A Colorado Springs and placed him on the 15-day disabled list with inflammation in his right shoulder. The move is retroactive to Wednesday. Chacin was optioned to the Sky Sox on Wednesday after getting off to a rocky start, going 0-3 with a 7.30 ERA. ... Padres LF Carlos Quentin, who started the season on the disabled list, said he thinks he's getting closer to being activated. He returned from a rehab assignment to Triple-A Tucson on Monday to check in with the team's staff, and is scheduled to go to Class A Lake Elsinore beginning Tuesday to continue his rehab assignment. Quentin had arthroscopic surgery on his right knee during spring training. Quentin said he's not sure if he'll be ready for a road trip that will start Friday at Philadelphia. ... The Rockies will call up right-hander Alex White and left-hander Christian Friedrich from Triple-A to start the final two games of this series. White is scheduled to start Tuesday night while Friedrich will go on Wednesday. White was one of four pitchers acquired by the Rockies for right-hander Ubaldo Jimenez in July. ... Jeff Suppan (1-0, 0.00 ERA) is scheduled to make his second start of the season Tuesday for the Padres. ... To make room for White, the Rockies will option RHP Edgmer Escalona to Triple-A.