ONE Championship signs up world’s top women’s jiu-jitsu prospect

Helena Crevar’s meteoric rise in Brazilian jiu-jitsu has already made her a stand-out name – now, the teenage sensation is set to bring her talents to the global stage with ONE Championship.

The 18-year-old Las Vegas native has officially signed with ONE and is an exciting addition to the submission grappling roster. But what makes her arrival even more significant is the nature of her deal: a rare non-exclusive contract that allows her to continue competing in other events around the world.

“It’s really important that athletes get to compete wherever possible,” Crevar told the Post. “It helps both the athletes and the promotions to be more open, have more options, and get the most experience.”

Crevar is widely viewed as one of the top prospects in the sport. She became the youngest ever podium placer at the ADCC World Championships in 2024, claiming silver at just 17 years old. That same year, she also captured the Polaris 70-kilogram title and continued collecting IBJJF World and Pan-American titles across multiple belt levels.

A product of the famed New Wave Jiu-Jitsu team under legendary coach John Danaher, Crevar moved to Austin, Texas, at the age of 15 to train full time. She was promoted to black belt in June 2025, marking 10 years since she first stepped onto the mats.

“To be John Danaher’s first female black belt is a huge honour,” she said. “He’s incredibly smart; he knows the answer to any position or scenario. I’ve never trained under anyone like him.”