Oregon State showed its pitching depth and cashed in on two big innings to beat Hawai'i, 7-3, yesterday.

The Beavers (2-0), ranked 10th by Collegiate Baseball, used a four-run third and three-run sixth to take a 2-0 lead in the four-game series in front of 1,705 at Les Murakami Stadium.

In contrast, the Rainbows (0-2) had three single-run innings.

Starter Tanner Robles (1-0) allowed three runs, six hits and two walks with three strikeouts in 5[0xb0] innings. Relievers Matt Boyd and Kevin Rhoderick locked the door in the final 3 2/3 innings. Boyd retired seven of eight batters he faced. Rhoderick, who inherited two runners on base and struck out Kevin Macdonald with the tying run on deck in the eighth, pitched a perfect 1[0xb0] innings, striking out three, for his first save.

"We were able to keep them from having those big innings and I think that was the difference today," OSU coach Pat Casey said. "They're a very good offensive club. They're hard to pitch to. I thought our bullpen did a nice job."

Hawai'i took an early 2-0 lead on Kolten Wong's double that scored Greg Garcia, who walked with one out in the bottom of the first inning, and on a second-inning, lead-off, opposite-field home run to right by Collin Bennett.

After retiring the first seven batters he faced, UH starter Matt Sisto gave up six consecutive one-out hits in OSU's four-run third. Adalberto Santos, who was 3 for 5, ignited the inning with a two-run double.

But the dagger that put away UH was the sixth when OSU scored three runs after two outs.

After shutting out the Beavers in the fourth and fifth, Sisto retired the first two batters in the sixth. But he walked Jared Norris and walked Carter Bell in a 10-pitch plate appearance. Sisto was pulled after 93 pitches for Connor Little, who walked Mike Miller to load the bases.

A wild pitch by Little scored Norris and Tyler Smith followed with a two-run single to pad the Beavers' lead at 7-3.

Trapasso credited OSU for the four-run third because "in this park, it's hard to put up a crooked number, unless you do what they did: put six hits in a row like that. That doesn't happen very often. It's really rare."

But the three-run sixth was by UH's own doing because of the three walks.

"They earned the four-spot," Trapasso said. "We really helped them out on the three-spot."

Sisto (0-1) went 5 2/3 innings, allowing six runs, six hits and two walks with four strikeouts.

"I got a little tired at the end," Sisto said. "I shouldn't have walked two guys in a row. It's my bad. I should've pumped right down the middle and get out of it. But I'll get better."

Little gave up a run, two hits and two walks in one-third of an inning. Freshman Trent Allianic had 2[0xb0] scoreless innings, allowing two hits and two walks, but needed help from veteran Harrison Kuroda, who struck out the only two batters he faced to keep OSU from doing more damage in the ninth.

The Rainbows didn't help their cause offensively by losing three runners. After Wong's RBI double in the first, he tried to take third when Macdonald popped out to second baseman Smith, who was back pedaling and fell in making the catch in the first inning. But Smith threw Wong out at third. Also, Kevin Fujii and Wong were caught off first leaning the wrong way.

"We had some base-running mistakes, but we're really trying to push the envelope on the base running and be aggressive," Trapasso said. "But as we go through the season, we'll understand that there's a difference between being aggressive and being overly aggressive to the point where you're reckless. That will come."

The Rainbows did not commit any errors after making three Friday. Freshman third baseman Pi'ikea Kitamura made a diving stab of Santos' liner to the hole, held on to a foul pop by Parker Berberet despite falling backward, made a bare-hand grab on a chopper to retire Norris and twice robbed Smith — first on a back-hand snag toward the third-base line and later on a diving stab to the hole to start a force at second that was ruled a double play because of runner's interference.

"Pi'i showed why he's a guy we're really high on," Trapasso said.

Another Rainbow made his debut yesterday. Freshman Kalani Brackenridge started in left field. He went 0 for 3.

Wong batted 3 for 4 with a stolen base.

The series resumes at 1:05 p.m. today. Right-hander Josh Slaats will start for UH against OSU right-hander Greg Peavey.