Call it beginner’s luck, offshore fishing skill or maybe a combination of both.

But the crew of Magellan out of Harwich and captained by Jason Pillsbury took home the $20,000 prize in the Oak Bluffs Monster Shark Tournament Saturday.

Magellan landed a 429-porbeagle shark on Friday and another 313-pound porbeagle on Saturday and won the tournament with 742 points.

Sponsored by the Boston Big Game Fishing Club, the two-day tournament was in its 27th year, and attracted a large crowd of spectators as it always does, along with marine scientists who use the caught sharks for their research.

Big game fishing boats with flying the black flag of tournament participants moored in slips in the Oak Bluffs harbor on a steamy hot weekend that saw gusty winds late Friday and throughout the day Saturday.

A total of 12 sharks were weighed in over two days: eight on Friday and four on Saturday.

Spectators gathered four deep late Friday afternoon when Magellan brought her catch to the docks rimming the Oak Bluffs harbor.

The tail of the porbeagle was passed around for people to touch and marine scientists on hand who use the tournament for study were bloody to their elbows as they took tissue samples.

Although the tournament has been controversial in the past, there was no sign of protest this year.

Oak Bluffs police added extra officers for crowd control this year as well.

Nicholas Bradley and Olivia Hull contributed reporting.

This story has been corrected from an earlier version that reported Jason Pillsbury owned Magellan. He is captain.