Baltimore ? Jeremy Guthrie’s incentive to win had nothing to do with beating his former team.

The right-hander was far more interested in helping the Kansas City Royals maintain the momentum they generated during the first five weeks of the season, and in that regard, his outing against the Baltimore Orioles was a success.

Guthrie allowed one earned run in six innings, and the Royals hit a season-high three homers in a 6-2 victory Thursday night.

Facing the Orioles for the first time since they traded him to Colorado in February 2012, Guthrie (5-0) gave up seven hits and three walks while lowering his ERA to 2.28.

During his five seasons with Baltimore, Guthrie won 47 games and started three times on opening day. In his return to Camden Yards, his focus was entirely on helping the Royals end a three-game skid.

“I was just trying to win the game,” Guthrie said. “We had a nice April and we’re trying to stay consistent here and compete against good teams.”

And pitching against Baltimore?

“I think someone else put it this way: We’ve turned the page,” Guthrie said.

Orioles manager Buck Showalter said exactly that.

“I didn’t pay much attention to that part of it,” Showalter said. “We’ve kind of turned the page.”

After going 3-9 with Colorado, Guthrie has been a star for the Royals since his arrival last July. He’s 10-0 since Aug. 8 and has gone a franchise-record 18 straight starts without a loss. This outing was more of the same.

“I executed a few pitches, made a couple mistakes,” he said. “But our offense did what we’ve been doing all year when I’ve been out there — score big runs, tack on a couple of extra ones.”

Alex Gordon and Eric Hosmer both connected against Freddy Garcia (0-1) with a runner on in the fourth inning to put Kansas City up 4-0. It was Gordon’s third home run in three games and Hosmer’s first in 145 at-bats dating to last year.

Mike Moustakas homered in the seventh to make it 5-2. The Royals came in with an AL-low 19 home runs, so the three long balls served as a rare power surge.

“We broke out and hit some homers,” manager Ned Yost said. “(Hosmer) got on the board with a homer. Alex is swinging the bat really well. And Moose did a great job, left-on-left, hitting a slider. Good to see that.”