The regional high school boys swim team wrapped up its regular season Saturday by winning the Cape and Islands League championship.

The Vineyard competed against Barnstable, Nantucket, Nauset and Saint John Paul at the meet in Sandwich, with the boys team coming out on top for a second time in the meet’s five-year history. They also tied with Nauset as dual meet champions, both losing only once during the regular season to each other.

“When they finally announced [our win], the whole team cheered,” said coach Jennifer Passafiume. “The whole team then jumped into the pool, including myself with all of my coach clothes on.”

Coach Jen Passafiume holds up the hardware. — Courtesy Jen Passafiume

Based on a pre-meet psych sheet, which ranks each competitor’s times, the boys were slated to lose marginally to Nauset — their fiercest competitor over the last three years. But fresh off a win against Nauset the week before, the Vineyard boys entered the championship determined to beat the odds, said Ms. Passafiume.

“I’d been trying to hype them up for it all week,” she said. “Then, we started off the championship really strong with a surprising win in the boys medley relay and that got the flow of excitement going.”

The high school girls team came in fourth place at the championship, topping Saint John Paul.

Nearly every swimmer on both Vineyard teams achieved a season or personal record, Ms. Passafiume said.

Next up are the sectional championships, held Feb. 10 and 11 in Worcester; the state championships take place in Boston on Feb. 17 and 18.

Until then, Ms. Passafiume said that she is encouraging the students to swim with ease and bask in their well-deserved victory.

“We ordered pizza and had a team dinner on the ferry on the way back from [the championship],” she said. “But I’m hoping to have an even bigger team dinner celebration.... They’ve just all been working so hard.”