Dominique Maltais of Canada wrapped up the World Cup snowboard cross title by winning the last event of the season, while Pierre Vaultier of France won the final men's race in Sierra Nevada, Spain.
Maltais became the first woman to win four races in a single season since 2009.
She finished with 5,600 points, ahead of France's Moenne Loccoz with 4,150.
"It's crazy," Maltais said. "I can't believe it.
"I'm happy to finish the season with a big win and the globe. I'm really stoked."
Alex Pullin of Australia had already clinched the men's title and opted to sit out the last race on Thursday.
Pullin ended the season with 4,550 points, in front of Markus Schairer of Austria with 3,500.
"I had so much success already and the globe locked away," Pullin said. "I didn't really have that fire in the stomach anymore.
"When I'm normally feeling like that it's normally a good idea to just take a back step. I'm very happy with my season."
Poor weather caused the final parallel giant slalom race of the season to be cancelled this week.