LYNN – The Swampscott baseball team is sitting pretty this week as it heads into the Division 3 North semifinals.”We’re still playing,” said coach T.J. Baril, “so we can’t be in a better position than that.”The 16th-seeded Big Blue, who struggled at times during the season to finish 10-9, won its third game of the tournament Monday, ousting St. Mary’s, 7-3, behind the complete-game pitching of Mike Gillis. The Big Blue will have a very rested pitching staff heading into Wednesday (4 p.m. against Newburyport at Fraser Field) and beyond.Click here for a photo gallery.Gillis, said Baril, gutted it out in the late innings after his team staked him to a 5-1 lead heading into the sixth. No. 8 St. Mary’s had already scored two runs, and was still threatening, when he got pinch-hitter John Chambers to ground into a 6-3 double play, with shortstop Hunter Gordon making the heads-up decision to take second himself and throw to first to complete the twin killing.”That was huge,” said Baril, noting that had Gordon elected to relay to second, it may have been too late to turn two – leaving a struggling (at that point) Gillis on the mound to throw more pitches.”They had something going there, and that play just stopped it,” he said.This was about as complete a game as a team could play on Swampscott’s part. The Big Blue got 11 hits, performed flawlessly in the field, and got the pitching it needed.St. Mary’s, on the other hand, was stymied by Gillis’ assortment of off-speed pitches.”We’ve hit the ball well this year,” said Spartan coach Derek Dana, “but I tip my hat to their pitcher tonight. He kept us off-balance and pitched a great game.”Spartan starter Jeremy Tranfaglia, a sophomore, pitched better than the score would indicate. A couple of seeing-eye singles in the second led to two Swampscott runs (it could have been more, save for a bizarre interference play that wiped out a third run).Shane Coffey and John Pelletier led off the second with singles, and after Matt Barbuzzi flied to center, Justin Massey punched one into right that scored Coffey and sent Pelletier to third.Gillis successfully executed the safety squeeze, bringing home Pelletier. But before Massey, who had stolen second, could score, Gillis got tangled up with Spartan first baseman Anthony DiSciscio, and the umpires ruled interference, and called Massey out.St. Mary’s got one of those runs back in the third. Yano Petruzzelli and Justin Sharkey led off with walks, but Gillis threw to third to nail Petruzzelli on Nick Day’s attempted sacrifice.After Joe Kasabuski flied to right, Alex Glover hit a humpback line drive that bounced at Gordon’s feet at short, and beat it out for the hit that scored Sharkey.Swampscott doubled its lead in the fourth, with Gordon singling and scoring on Coffey’s double, and Barbuzzi singling Coffey home.The Blue could have had more, but Alex Fiste, in relief of Tranfaglia, threw one pitch and got a 1-2-3 double play out of it to end the inning.”He (Tranfaglia) is a sophomore, and he pitched a big game for us in the Clancy,” Dana said. “He pitched well tonight.”Swampscott got a run in the fifth to make it 5-1 with Pelletier knocking in Gordon. Kasabuski walked and Glover doubled him to third to start the sixth. At that point, Baril came to the mound to talk things over.”He (Gillis) still wanted the ball,” he said. “I could see it in his eyes.”Fiste’s sacrifice fly got one run home, and Ryan Beliveau’s base hit scored the other and all of a sudden it was 5-3. But Gillis got the double-play ball to get out of the inning.Swampscott scored two more in the seventh to close out the scoring.