YARMOUTH — To say that Yarmouth High’s 15-11 victory over Greely in the quarterfinals of the Western Class B softball playoffs was unusual might be an understatement.

“It was crazy,” said Amy McMullin, coach of the victorious Clippers, “especially for a playoff game.”

Yarmouth ended Greely’s reign as the regional champion despite getting outhit by the Rangers 12-9 and committing four errors to Greely’s none.

The Clippers advanced because they were able to capitalize on the wildness of Greely’s pitchers. The Clippers drew 17 walks, with eight coming around to score. Another two batters were hit, with one scoring.

Yarmouth’s pitchers also had some trouble finding the strike zone, walking seven Greely batters with five scoring. But in the end, Yarmouth reliever Mari Cooper – who didn’t start because of a back problem – held Greely to two runs over the final three innings.

Fourth-seeded Yarmouth (11-6) will play at top-ranked Cape Elizabeth in the regional semifinals Saturday. Greely, which eliminated Yarmouth a year ago in the quarterfinals, finished 11-6.

“This means a lot to us,” said Yarmouth catcher Kallie Hutchinson, who lofted a three-run home run in the bottom of the sixth to provide a cushion. “This is the team that knocked us out last year. We have four seniors who have absolutely led this program and as a junior I want everything for them and I want to play as long as we can for them.”

Catherine Thompson and Eleanor O’Gorman each had two hits and two RBI for the Clippers. Monica Austin walked four times, scored three runs and drove in one with a single.

The game went back-and-forth because neither team’s pitching staff could hold a lead. Down 6-2, Greely scored four in the top of the third to tie the game. Yarmouth scored two in the bottom of the inning but Greely took a 9-8 lead with three in the top of the fourth. Two came in on sacrifice flies by Elyse Dinan and Charlotte Benoit, and the other on a single by Sarah Felkel.

Yarmouth came right back with three in the bottom of the fourth, with Julia Anastos and Thompson getting RBI hits, to take an 11-9 lead.

Cooper relieved freshman Andrea St. Pierre to start the fifth and slowed the Rangers down. Hutchinson, meanwhile, came through with the big hit.

With Yarmouth leading 12-10 and two on in the sixth, she hit a high drive to left that fell a foot beyond the fence for a three-run home run.

“It was huge,” said McMullin. “I don’t want to say this but I told her to take that pitch. So I’m happy she didn’t listen to me.”

Hutchinson said she never considered not swinging.

“I have a tendency of missing the signs,” said Hutchinson, laughing. “I go for it. If it’s there you might as well swing and that definitely was a pitch I was looking for all day.”

Rangers Coach Jessica Brady called it one of those strange days. “We put up 11 runs,” she said. “Who would have thought you’d put up 11 runs and not win? That’s a lot of runs. But it wasn’t enough today.”