MILWAUKEE — Say this much about Bill Hall: He doesn't lose confidence easily.

Not after a season that saw his offensive numbers drop off fairly substantially. Not after 23 spring training games in which he didn't hit a home run and drove in only three runs. And not after opening the regular season 2-for-12 with six strikeouts.

"I wasn't worried about not hitting home runs in spring training and exhibition games," the Milwaukee Brewers third baseman said. "I've never seen those stats on the back of anybody's baseball card.

"I hit a lot of balls hard during spring training, I hit a lot of them off the wall, and I wasn't worried. As long as I was still hitting them in batting practice, I still knew my swing was pretty good."

It certainly was Friday afternoon, when Hall belted his first two home runs of the season and drove in a career-high six runs in the Brewers' 13-4 win over the San Francisco Giants in Milwaukee's home opener at Miller Park.

"Maybe he ate his Wheaties," Brewers manager Ned Yost said of Hall, who was 3-for-5 on the day to raise his season average to .294. "It takes 50 at-bats for guys to start to get into the swing of things, I think season-wise, and I don't even look at what they're doing up until about that point. He got home in a place that was comfortable."

And it didn't take long for Hall, the fifth hitter in Milwaukee's lineup, to show how comfortable he was. He deposited a 1-1 pitch from Giants starter Jonathan Sanchez into the left field bullpen, a two-run shot that gave the Brewers a 3-0 lead in the first inning.

Hall then capped Milwaukee's five-run fifth inning with a 436-foot blast into the left field seats off San Francisco reliever Keiichi Yabu that plated three more runs.

"Whenever a guy in the middle of the lineup is swinging it good, it can never hurt," Brewers first baseman Prince Fielder said.

Hall said he noticed a problem in his hand positioning — they were lower in his swing — while watching a DVD with utility man Joe Dillon on the bus ride back from Chicago on Thursday after Milwaukee's 6-3 loss to the Cubs at Wrigley Field.

That prompted him to take a look at his form from 2006, when he batted .270, hit 35 home runs and drove in 85 runs, as well as tape from this offseason. The correction paid off, to say the least.

"The results were pretty much immediate," said Hall, who hit .254 with 14 homers and 63 RBIs last season while playing center field.

Hall's final hit of the day was a lined single to right field that scored center fielder Gabe Kapler for one of the Brewers' five sixth-inning runs. Nothing, though, was sweeter than his second home run and the ovation from the crowd of 45,212 that drew Hall out for a curtain call.

"It was real loud," he said. "When you're playing, you kind of block it out. You don't really hear it because you're into the game so much. But when the fans give you a standing ovation, obviously it gives you a different sense.

"It's unexplainable, when you run out there and everybody's cheering for you and the spotlight's just on you. It's always a lot of fun when those moments happen."