ANAHEIM, Calif. -- Jean-Sebastien Giguere had plenty to overcome to notch his 100th regular-season victory. Mostly, his own unsteady play.

Giguere gave up a goal on the first shot he faced Wednesday night against St. Louis and surrendered a couple more after his teammates staked him to an early four-goal lead.

But Joe DiPenta stopped the Blues' momentum in the third period with his first goal of the season and the Mighty Ducks coasted to a 6-3 victory.

"These are the type of games I don't love to play in," said Giguere, who made 22 saves. "There's no flow, there's a lot of penalties, and when your team is doing so well in the other zone, it's kind of hard to stay focused.

"Any goal or any mistake can give them a little bit of life, which they don't have at 5-1. But we got the win. The guys have been scoring a lot of goals lately, and I've been giving up more than usual, so it's good that we can still win some games."

Temmu Selanne scored on Anaheim's first shot, Andy McDonald had two goals and an assist, and Samuel Pahlsson scored short-handed during Anaheim's four-goal first period. Tyler Wright also scored and Petr Sykora had two assists.

"I thought it was a masterpiece," Ducks coach Randy Carlyle said, jokingly. "It was a game where we were able to get things going in a positive direction after the first shift. We had a few miscues and we took a penalty right off the bat, but we were able to regroup and get enough pucks past their goaltenders."

Dean McAmmond, Dennis Wideman and Eric Brewer scored for the Blues, who are an NHL-worst 7-20-4. They have allowed at least five goals in 15 of 31 games this season and eight of their last 12.

"No one feels bad for you. No one cares, really, except for the guys in this room and in our organization," Doug Weight said. "I'm proud that we stuck up for ourselves. We played with some heart and made it a game, at least. But it's just not enough right now. This is as frustrated as I've been in my career, so it's a great challenge."

The Ducks built a 4-1 lead through the first 11:09, setting a franchise record for the fastest four goals from the opening faceoff.