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03/05/12 6:21 PM EST

Ackley posts near-cycle in Mariners' victory

Iwakuma allows unearned run on three hits in one-inning debut

PEORIA, Ariz. -- Dustin Ackley had three hits, including a double and a triple, to lead the Mariners to a 13-7 victory over the Padres in a Cactus League game Monday before a crowd of 3,628 at the Peoria Sports Complex.

Ackley, who hit leadoff for the first time this spring, had a double to start the game and later scored on another double by Brendan Ryan. In the fifth inning, Ackley tripled to center field and scored on a Ryan groundout as the Mariners improved to 3-1 this spring.

Hisashi Iwakuma -- a candidate for a spot in the starting rotation -- made his debut for the Mariners and allowed one unearned run on three hits. Iwakuma threw 35 pitches, 22 for strikes, and struck out one.

"I was supposed to pitch three innings, but unfortunately I threw too much," Iwakuma said through translator Daisuke Sekiba. "So [pitching coach Carl Willis] said, 'Why don't you finish up?'

"I wanted to pitch more, because I'd only pitched one inning. I wanted to pitch two or three, but they said they were thinking about me and worrying about too much pitches. But I felt pretty good, even at 35 pitches. Next time I'll try to pitch more innings to get experience with what it looks like."

Scott Patterson, George Sherrill and Tom Wihelmsen each tossed a scoreless inning for the Mariners. Adam Moore gave Seattle a 7-5 lead with a home run to start the eighth inning.

The Padres, who saw each of their first three pitchers allow runs, fell to 0-2.

San Diego starting pitcher Dustin Moseley allowed two runs, both in the first inning, in two innings of work. He looks to be the favorite to win the No. 5 spot in the starting rotation.

"I was trying to throw everything, mix everything in," Moseley said. "I thought the second inning was a little better. I wanted to go out and throw a lot of strikes, and I did."

Newcomer Micah Owings, who is in competition with Anthony Bass for the long relief job, allowed two runs on three hits with two walks in two innings.

Jason Hagerty had a two-run triple as part of a four-run sixth inning for the Padres.

Carlos Quentin had two hits, including a double, and reached base three times. Jeremy Hermida knocked in a run with a pinch-hit single.

Up Next for Mariners: Felix Hernandez makes his Cactus League debut as Seattle hosts the Reds at 12:05 p.m. PT at Peoria Stadium. Hernandez, who is being lined up to pitch the Mariners' season opener in Tokyo on March 28, has thrown one intrasquad game and one simulated game and likely will throw three innings. Shawn Camp, Hong-Chih Kuo, Chance Ruffin and Steve Delabar are all scheduled to throw in relief. The game will be on radio on a delayed broadcast at 7 p.m. PT on 710 ESPN Seattle.

Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.