KANSAS CITY, Missouri (Ticker) -- Jamie Moyer just keeps on pitching and winning.

Moyer survived a shaky start and got some support from rookie Jeremy Reed and Richie Sexson as the Seattle Mariners completed a three-game sweep of the Kansas City Royals with a 10-2 rout.

The 42-year-old Moyer (2-0), who allowed two runs and five hits in the first two innings, settled down and yielded just four hits over his next five frames to record his 128th victory as a Mariner - two behind the club record held by Randy Johnson .

"The way he started out, I didn't know if he was going to make it through three," Mariners manager Mike Hargrove said. "Everything was up in the middle of the plate and they were hitting him pretty hard. He found himself, started getting the ball down, pitching to the corners and changing speeds well."

With the score tied, 2-2, in the third, the Royals loaded the bases before John Buck flied out to right field, ending the threat.

"The first three innings were a struggle," Moyer said. "It was a matter of keeping them at bay and getting out of the third inning with the bases loaded and two out. That was big for me personally. If they get a hit there, that opens up the game for them."

The Mariners erupted for six runs in the fourth to take a commanding lead. After Wilson Valdez chased starter Denny Bautista (1-1) with a two-run double, reliever Mike Wood entered.

Kansas City chose to walk Ichiro Suzuki intentionally to pitch to Reed, who entered the game batting .179. The rookie promptly drilled a three-run double to left-center field before scoring on a two-base hit by Sexson for an 8-2 cushion.

"Valdez' broken-bat double down the first base line was just a backbreaker," Hargrove said. "Then we were able to tack on. Jeremy Reed came up big when they intentionally walked Ichiro with a double. We were able to stay on top of them. We were able to add runs to it."

Sexson capped the scoring in the sixth with a two-run homer, his third of the season and first since Opening Day.

Moyer, who improved to 194-145 all-time, has allowed just five earned runs in 18 innings this season.

While Moyer knows how to win in the majors, Bautista still is trying to learn to harness his mid-to-upper 90 miles-per-hour fastball and breaking pitches. He walked three and hit a batter, with three of the runners scoring.

"He's going to be a good one," Sexson said. "He was a touch wild. We were able to get some guys on base. That's what you have to do to beat a guy like that with that kind of electric stuff."

Bautista, who allowed a run and three hits in eight innings in a win against the Los Angeles Angels of Anaheim in his first start last Friday, yielded six runs and four hits in 3 1/3 innings in this one.

"The fastball was sporadic today," said Buck, Kansas City's catcher. "I told (Royals manager Tony Pena ) after the first inning that he was throwing hard, his ball was heavy. The second inning, he came out and felt good and tried to bring it even more.

"You know when guys feel too good, they have a tendency to try to overthrow the ball and really hump. I think that's kind of what happened. He tried to throw his slider and breaking ball. He's the type of pitcher that has to find that fastball and live off of that."

Seattle third baseman Adrian Beltre , who belted his first homer with the Mariners on Monday, left the game in the fourth inning with lower back tightness.

"He'll be fine," Hargrove said. "He just tweaked his back on that first swing he took in his first at-bat. I didn't want to take a chance on this being more than a day-to-day deal. I t loosened up and felt better. He said he would be able to play tomorrow. We'll see. My money is on him."