Judges’ snowboarding scores continue to fuel controversy.

For a brief moment on Thursday night, social media was ready to throw down in support of the snowboarder Ayumu Hirano of Japan. On his second run, Hirano became the first competitor in an Olympic Games to land a triple cork — three flips performed on a rotation while grabbing the board — as part of what the NBC analyst Todd Richards called “the best run that’s ever been done in the halfpipe.”

But the judges gave Hirano a score of 91.75, a hair behind the one given to Scotty James of Australia, who sat in first place with a score of 92.50.

In certain sports, athletes’ fates can rest in the hands of judges, who award scores in real time. In the halfpipe, for example, it’s not about crossing a finish line but about the judges’ overall impressions, based on the snowboarders’ amplitude, and the progression, variety, execution and difficulty of their tricks.

Richards roasted the judges after Hirano’s second run, saying they had “grenaded” their credibility. Twitter was flooded with people outraged at the score.

But Hirano challenged the judges to keep him in second place when he performed the same run with perfect execution in his final ride down the halfpipe. He was awarded a 96.00 and with it, the gold medal.

That’s not the only snowboarding controversy that emerged from the Games this past week.

The same set of judges is at the center of the snowboarding community’s ire at the men’s slopestyle final, in which Max Parrot of Canada bested Su Yiming of China for the gold.

Parrot, whose victory caps a comeback from cancer since the 2018 Winter Olympics, scored a 90.96 on his winning run, which included three consecutive triple corks. But the results were hotly contested within the snowboarding world after the judges failed to dock Parrot any points for grabbing his knee instead of his board during one of the jumps. The BBC commentator Ed Leigh called it a “glaring knee grab.”

Slopestyle is another judge-reliant discipline in which riders are known for their broader skill sets and creativity. Snowboarders have to preform tricks across a series of rails and jumps varying in size and shape.

In an interview on Tuesday with Whitelines, a snowboarding website, the head snowboarding judge Iztok Sumatik said that the judges’ camera angle did not show anything amiss with Parrot’s tricks.

“We just had this camera angle that they gave us, and it looked clean,” Sumatik said, adding that “we judged what we saw and everyone felt confident with it.” The judges were not given a replay.

There are three snowboarding events left in the Olympics, including the mixed team cross finals on Saturday.