A night that began with a celebration of the West Division title ended with another reason to celebrate, as the Hyannis Harbor Hawks defeated the Cotuit Kettleers, 7-0, in Game 1 of the first-round playoff series between the two Barnstable rivals.

Winners of seven of their previous eight games entering the postseason, the Harbor Hawks picked up right where they left off in the regular season, recording their sixth shutout of the summer.

Behind a dominant start from Jonah Barkoff (Oregon), a scoreless effort from the bullpen, and a 10-hit offensive performance, head coach Mitch Karraker credited his team for putting together a complete game.

"You can't help but be happy with how the guys played tonight," Karraker said. "Jonah got us off to a really good start, and the bullpen followed up well, making all the pitches when we really needed them to keep the momentum on our side. Throw in the double plays and just an overall strong performance. Offensively, 10 hits aren't easy to come by, and we've been searching for that explosive game. It's always great to see those guys have that success, especially at this point in the season."

Barkoff tossed five scoreless innings and struck out four in his longest outing of the summer. The Lake Oswego, Oregon, native said he had confidence in all four of his pitches throughout the outing.

"I felt really good out there tonight," Barkoff said. "All four of my pitches were landing for strikes, and the guys behind me did an excellent job. In my opinion, we have the best infield on the Cape, so having those guys behind me gives you a lot of confidence. It's always good to get the first win for the boys."

Hyannis grabbed a 1-0 lead in the second inning when Caden Miller (Texas-San Antonio) lined an RBI single to right, scoring Clay Thompson (James Madison), who reached after being hit by a pitch to lead off the inning.

After starting a double play in the top of the fifth, shortstop Matt Ineich (West Virginia) extended the Harbor Hawks' lead in the bottom half with an RBI single to right that scored Taylor Kirk (UCLA).

The play became even bigger when Cotuit right fielder Sam Christiansen misplayed the ball, allowing Brody Briggs (Arizona State) to score from first and push the lead to 3-0.

Ineich later started another 6-3 double play in the eighth inning, ending Cotuit's final serious scoring threat of the game. He said his defensive success comes from trusting the work he puts in before first pitch.

"Those plays don't present themselves often, so when they do, you have to make them," Ineich said. "I just trust my preparation, what I did before the game, and try not to think too much about it."

Ineich, who finished the regular season with a team-best .819 OPS, said his recent success has come from seeing the ball well and settling into a rhythm at the plate.

"I feel like I've been seeing the ball well lately," Ineich said. "In my first at-bat, I drew a walk, and then I was able to barrel one up. You get into a flow state when you're up there, so when you get a good pitch to hit, you just let it go."

The fifth-inning scoring continued two batters later when Charlie Bates (Stanford) golfed an RBI single into shallow left field, bringing Ineich home and extending the Harbor Hawks' lead.

Clay Thompson followed with an RBI double to right field, scoring Bates and pushing Hyannis ahead, 5-0.

Hyannis added two more runs in the eighth inning. Tyler Lang (USC Upstate) delivered an RBI single to score pinch runner Nick Dromboski (Stony Brook), and Kirk capped the scoring with an RBI single to left field that brought Lang home and made it 7-0.

With the victory, the Harbor Hawks' magic number to capture their first Cape Cod Baseball League championship since 1991 dropped to five. While it's easy to get caught up in the excitement surrounding the team's recent success, Karraker knows winning is only part of what it will take to bring home a championship.

"Our guys are in a good spot. There's nothing I need to say to them. They feel how good the emotions are. Getting the win on Sunday was big for the momentum going into the playoffs. The way we've been playing the last two weeks, you can see how much the guys are enjoying it. We have five more wins to get, but I told them, "Don't let go of this feeling, and let's run with it," Karraker said.

For Karraker and the Harbor Hawks, the goal is to continue building on the momentum that carried them into the postseason while keeping their focus on the next challenge.

Game 2 of the first-round series shifts to Lowell Park in Cotuit, where Hyannis will have a chance to advance to the second round with a victory. First pitch is scheduled for 4 p.m.

Hyannis is expected to send right-hander Raymond Olivas (UC Santa Barbara) to the mound, while Cotuit's starting pitcher remains to be announced.