Marcos Perivolaris doesn't need a whole lot to succeed. On Monday, he found a corner of home plate in a mad dash to score the go-ahead run in Game 1 of the Suffolk Class B finals against Center Moriches. On Friday, he worked those corners again.

Utilizing an excellent changeup and precision slider, the Mattituck junior (7-0) ran the proverbial gamut against a dangerous Red Devils offense, pitching a four-hitter en route to a hold-your-breath 1-0 victory in the series-deciding Game 3.

"We had our backs against the wall and we had to make sure we came out with the win,'' he said. "It was very tough. [Center Moriches starter Dan Franchi] had a great game going. We just had to make sure we came out on top.''

Top-seeded Mattituck (20-3) will play defending Long Island champion Wheatley at 4 p.m. June 6 at Farmingdale State. Second-seeded Center Moriches finished 14-8.

Ian Nish scored the only run in the bottom of the fourth. He led off with a walk, reached third on twin brother James' infield single and a wild pitch, and scored on Brian Pelan's slow-rolling grounder to second.

If it sounds like a nerve-wracking trip, it's because it was, Nish said.

"I looked like I had a game face out there but underneath, I'm dying,'' he said. "Every single inning I was nervous.''

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Part of it had to do with the lingering bitter taste of last year. The Tuckers were beaten by Southampton in the county final.

"I remembered losing to them and I thought about that every single game this year,'' Nish said. "Now that we're on the other side, it feels pretty good.''

Nish was the only batter to do any damage against Franchi, who pitched a four-hitter with five strikeouts. Nish walked twice and doubled in the sixth, the only extra-base hit Franchi allowed.

"But we had Marcos on the mound and I was really proud of what he did out there,'' Nish said.

Perivolaris retired 12 of 13 batters from the second to the fifth innings and allowed only one batter to reach second base (Franchi doubled with one out in the first). With the tying run on first and two outs in the seventh, Perivolaris picked up a called third strike to end the game.

"I just kept pitching,'' he said. "I didn't think. I let my repetition speak for me . . . We didn't want to see any dogpile. We had to make sure we were the ones having the dogpile.''