FALMOUTH — Ashley Pullen expected grass. She was prepared to practice on grass for at least a week leading up to the Class A North girls’ lacrosse championship game against Windham.

But when Windham saw a four-goal lead evaporate in the regular-season finale and lost to Kennebunk in overtime, Falmouth drew the top seed and got to play on its home turf Wednesday afternoon.

The result was an impressive 13-6 victory for Falmouth, the defending Class A state champion, to avenge its only loss of the season.

“I can’t even tell you how huge that is,” said Pullen, the Falmouth head coach, about playing at home. “It’s a big adjustment to go from playing on turf to playing on grass.”

Falmouth (13-1) advances to Saturday’s Class A championship against Kennebunk, which beat Massabesic 6-4 earlier Wednesday in the Class A South final. Windham, which beat Falmouth 7-6 in early May on grass, finished 12-2.

After trading goals for much of the first half, Falmouth took the lead for good when senior Caitlyn Camelio scored from free position to make it 4-3. She then set up classmate Jo Stucker to give Falmouth a 5-3 lead at intermission, when the outcome still seemed in doubt.

Camelio, who plans to continue her career at the University of Michigan, removed much of that doubt in the opening 1:42 of the second half by scoring twice before Windham had a chance to take a shot. Camelio scored five of her seven goals after the break as Falmouth pulled away.

“It’s not like it was any secret coming into this game that she’s an amazing player,” Pullen said. “So I think that speaks volumes that she’s still able to be as prolific a scorer as she was (Wednesday) given that she’s had a big target on her back.”

Belle Skvorak pulled Windham within three at 7-4 but Eva Clement scored during a Windham penalty, Camelio added two more goals at even strength and Stucker converted from in close to make it 11-4 midway through the second half.

Stucker finished with three goals and sophomore Avi Fishman had two, including one in the game’s opening minute.

Camelio and Clement were often on the receiving end of successful draws by senior Kayla Sarazin, who won 12 of 20 in the circle and also finished with three assists.

“Their passing is incredible,” Windham Coach Matt Perkins said of the Falmouth girls. “Balls that you think are going to hit the turf and bounce out, they somehow get a stick underneath and catch it. Then they look up and hit someone 20 yards ahead.”

Senior Alana Joyce and sophomore Emma Yale each scored twice for Windham and goalkeeper Kaitlyn Gedicks made seven saves. Yale’s first goal gave Windham its only lead, at 3-2.

“The kids played hard, as they have all year,” Perkins said. “It’s a tenacious group.”

Falmouth and Kennebunk (11-3) met in the second game of the season, back in late April, and Falmouth rallied from two goals down to win 8-7 in overtime.

“I’m really excited,” Camelio said. “It’s going to be a great game.”