Kansas City, Mo. ? Jason Giambi took Zack Greinke deep, not much of a surprise given their history against each other.

Colorado’s Jason Giambi, left, is congratulated by teammate Troy Tulowitzki after hitting a three-run home run off Kansas City starting pitcher Zack Greinke. The Rockies beat the Royals, 11-7, Sunday in Kansas City, Mo.

The rest of the Rockies battering the reigning AL Cy Young Award winner? That was a nice boost at the end of a road trip.

Giambi homered and drove in four runs, Ian Stewart had three RBIs, and the Colorado Rockies roughed up Greinke in an 11-7 victory over the Kansas City Royals on Sunday.

“To beat a guy like that is a huge confidence booster,” said Giambi, who has 799 career extra-base hits. “A lot of guys asked about him in this room, and I said, ‘This guy’s electric, when he’s got it going he’s got great stuff.’ Lucky for us, we caught him right before he gets going.”

Giambi got it started against Kansas City’s ace with a three-run homer in the third inning and capped a five-run fourth off him with an RBI single. Troy Tulowitzki homered, Clint Barmes drove in two runs and the Rockies chased Greinke (1-5) after 31?3 innings in his shortest outing in nearly two years.

K.C. collected 18 hits.

The Rockies made up for it by tying a team record with five double plays and banging out 15 hits.

“It was really good to see us swing the bats in the manner in which we did,” Rockies manager Jim Tracy said. “We didn’t necessarily pitch the game as well as I liked to see it pitched, especially when we got out to a 9-0 lead.”