ATOS black belt Kaynan Duarte was recently stripped of his 2019 IBJJF world title due to testing positive to a banned substance. According to USADA, the substance Ostarine was found in trace amounts in Duarte’s system. 

“Ostarine is a non-Specified Substance in the class of Anabolic Agents and is prohibited at all times under the World Anti-Doping Code and the USADA Protocol for Olympic and Paralympic Movement Testing, which applied to the 2019 IBJJF World Jiu-Jitsu Championships.”

According to a USADA press release, used improperly, Ostarine can result in serious side effects. It has been found to be an ingredient in various dietary supplements in a “declared and undeclared” presentation. 

However, because the small amounts of the substance found, USADA concluded that Duarte’s use resulted from cross-contamination with another supplement. In other words, it was likely unintentional use. 

Kaynan Duarte suspended for a year

As a result, Duarte’s competition suspension is active for one year, which began retroactively, in June 2019. Despite his IBJJF suspension and title removal, Duarte’s competition career still seems to have momentum. This includes his stellar performance at ADCC 2019, and his win over Nicholas Meregali for first prize at the 2019 Spyder Invitational.

 It is currently unclear if the fallout ends at the IBJJF, or if the other organizations Kaynan competes in could follow suit. In two candid Instagram posts, Kaynan explained recent events in his own words, both in English and Portuguese. 

“ Before I was notified of my positive test, I did not even know what Ostarine was. I have always taken special care to only use safe supplements. Even though this was an accident, I know that I am ultimately responsible for everything that goes into my body.” 

Due to the retroactive nature of the ban, Kaynan should be cleared to return to IBJJF competition within a few month’s time. 

“I continue to focus on training and staying in shape, and look forward to my return to IBJJF competition after this year’s World Championships.”

While the IBJJF adheres to USADA’s guidelines and regulations closely, no statement has been made yet concerning the reinstatement of Duarte’s title at the end of the ban.