SAN FRANCISCO -- Matt Cain may not be pitching as well as he has in the past but that doesn't stop Giants manager Bruce Bochy from believing in his right-hander.
Cain is off to the worst start of his career, losing his fourth straight decision to open the season in a record-setting 17-7 loss Thursday, the opener of a four-game series against the Rockies.
"We're standing behind these guys," Bochy said of Cain and the struggling Jake Peavy. "These are guys who are capable of getting back on track. They have been around. They have the experience."
Cain needed 45 pitches to get through three innings and then got through the fourth with seven pitches. He never recorded an out in the fifth.
"I threw an all-right pitch to [Trevor] Story and he ended up hitting a home run," Cain said. "It went downhill from there."

Cain and Peavy have each allowed 29 runs through six starts. Cain said they talk about pitching but nothing dramatic. They both continue to believe in themselves.
"The biggest thing is to keep trusting the stuff is there," Cain said. "It's a matter of executing. The bullpen [sessions] are always good and you want to go ahead and have some success on the field."
Cain and reliever Vin Mazzaro were also victims of some bad luck during a 13-run fifth that set the Rockies franchise mark for runs in an inning. Brandon Crawford and Kelby Tomlinson each made errors that prolonged the inning in which 17 Rockies hitters came to the plate.

Bochy had to be feeling it after the New York Mets scored 12 runs in an inning against the Giants last week. The Giants became the first team in Major League history to allow 12 or more runs in an inning twice over a seven-day span.
"It's hard to believe lightning hit us twice in a week," Bochy said. "You always hope your long man can give you some length and save the bullpen but Mazzaro just couldn't get out of it. It's tough to see the same things in a week."
Mazzaro matched the San Francisco record for most runs allowed in a relief outing. Left-hander Ray Sadecki also gave up nine runs (five earned) in a game against the Atlanta Braves in 1966.
"We had good at-bats and battled," Bochy said. "The pitching wasn't there."
Bochy also reinforced that Cain's stuff is fine.
"It's about being consistent," he said. "The first inning he got two outs, then a bloop and a blast. That was a crucial inning for him. He's got to be more consistent with his location."
Cain said the same thing.
"The location wasn't bad," Cain said. "The balls were a little higher than they needed to be and when you have a group of guys who can swing the bat as well as they can, they'll take advantage."