Cheverus/Yarmouth goalie Ethan Tucker makes a save against Landan Anctil of Gorham during the Class B South final. Tucker will start in goal when Cheverus/Yarmouth faces the John Bapst co-op team in the state championship game on Saturday. Derek Davis/Portland Press Herald

In a season where no other Maine high school boys hockey teams have lost fewer than four games, Cheverus/Yarmouth and the John Bapst co-op team have been unicorns.

Both No. 1 seeds in their respective regions in Class B, the two have combined to lose just three times. Now, Cheverus/Yarmouth (18-2-1) and John Bapst (19-1-1) are set to meet for the Class B state title at 10:30 a.m. Saturday at Cross Insurance Arena in Portland.

“We try not to get ahead of ourselves — we had to do our job and get out of our region — but we knew Bapst was going to be one of the teams that was going to be tough and might be there,” said Cheverus/Yarmouth coach Dave St. Pierre. “Ever since early in the season, we’ve both been one of the top dogs.”

Cheverus/Yarmouth was the best team in Class B South all season. The reigning state champion started the season on an 11-game winning streak before a five-game stretch that included losses to Kennebunk/Wells and Lewiston and a tie against Falmouth.

Balance has been a key to Cheverus/Yarmouth’s success. Offensively, Cheverus/Yarmouth finished the regular season without a player among the top eight in goals in Class B South. Owen Cheever and Hakon Yeo led the team with 11 goals each in the regular season, while Colby Carnes had nine.

Carnes is also the leader of a Cheverus/Yarmouth defense that has allowed just 1.19 goals per game. When opponents do generate shots, they have to put them past a top goalie duo of Ethan Tucker (1.15 GAA, 94.4 save percentage) and Brayden Fitch (0.86, 95.2).

“All three of our goalies (Tucker, Fitch and Johnny Wallace) just work so hard, and it just helps us become a better team with the effort they put in practice,” St. Pierre said. “They’re very supportive of each other, and even though Ethan’s going to be the guy to go, they’re there for him, and it really makes for a positive environment.”

John Bapst’s Will Bourgeois skates past Messalonskee’s Logan Baron during the Class B North final on Wednesday. Anna Chadwick/Morning Sentinel

The Crusaders, meanwhile, are allowing just 0.81 goals per game. In the Class B North tournament, the only player to score on them was Messalonskee’s Owen Kirk — the top scorer in the entire state — in a 3-1 win in the Class B North final on Wednesday.

In St. Pierre’s eyes, John Bapst’s win over Messalonskee showed what the Crusaders do best. Freshman goalie Camden Leighton delivered a remarkable performance, stopping 27 shots and allowing the Eagles very little in the way of rebounds.

“(Messalonskee) didn’t get a lot of second chances on pucks, and I think that was something that made a big difference,” St. Pierre said. “They play great team defense around (Leighton), and they clear pucks quickly. … They’re a tenacious team that works hard on the puck, and they’re going to create a lot of challenges for us.”

In addition to Leighton in goal, Nick Needham (11 regular-season goals, 22 assists), Silas Comstock and Owen Hart are key players for John Bapst on defense. Will Bourgeois (21 goals, 14 assists) is an offensive standout, and Owen Marryatt had a goal and two assists in the regional final.

John Bapst is making its first appearance in a state final. There are sure to be nerves, Marryatt acknowledged Wednesday — but nothing that a team that’s gone unbeaten in its last 13 games can’t handle.

“We’ve heard they’re really good; they’re the top of the South, and they have a good record,” Marryatt said. “We’re a little nervous, but I think we’ll pull through and get the confidence to get it done.”