The details of Paulo Miyao's doping violation, which resulted in him receiving a two-year sanction with the IBJJF, or any WADA Code signatory, have been confirmed by U.S. Anti-Doping Agency (USADA). 

Miyao tested positive for clomiphene following an in-competition drug test conducted on June 5, 2016, at the IBJJF World Jiu-Jitsu Championships held in Long Beach, CA. 

Clomiphene is a specified substance in the class of hormone and metabolic modulators on the WADA Prohibited List and prohibited at all times under the World Anti-Doping Code and the USADA Protocol for Olympic and Paralympic Movement Testing, which applied to the 2016 IBJJF World Jiu-Jitsu Championships.

Following notification of his positive test, Miyao challenged USADA's jurisdiction to bring a case against him under the USADA Protocol and WADA Code. After a jurisdictional hearing before an independent arbitrator from the American Arbitration Association, the arbitrator upheld USADA's jurisdiction over Miyao for the purpose of adjudicating his positive drug test result from the 2016 IBJJF World Jiu-Jitsu Championships.

The Brazilian athlete has been issued a two-year period of ineligibility to compete in WADA Code signatory events, retroactive to September 29, 2016, the date he agreed to cease competing in any activity or competition associated with the IBJJF.

Miyao has been disqualified from all competitive results achieved in competitions sanctioned by the IBJJF, or any Code signatory, on and subsequent to June 1, 2016, the date the 2016 IBJJF World Jiu-Jitsu Championships started, including forfeiture of any medals, points, and prizes. IBJJF has agreed to impose the sanction.

Miyao took gold in the black belt adult male light featherweight division after beating Ary Farias 4-2. The result has been officially overturned, but it is not yet known if the gold medal will be awarded to Farias. 

While Miyao received $15,000 as the No.1-ranked male adult black belt in the IBJJF 2015-2016 season, the end date of the season was June 1, 2016, some four days prior to his positive test at the 2016 IBJJF Worlds. 

One of the most well-known and active competitors in jiu-jitsu, Miyao had been conspicuously absent since Worlds last year, competing in only a handful of events. 

He took gold in the 69kg division at the Abu Dhabi Grand Slam World Jiu-Jitsu Tour in Los Angeles in September 2016 and won the 2017 ADCC Trials in Rio de Janeiro in February, guaranteeing a place at the ADCC World Championships in Finland in September. 

Miyao had flown to Abu Dhabi to compete in the UAEJJF Grand Slam event on January 13 but withdrew from the tournament following the weigh-ins. The UAEJJF requires athletes follow WADA rules regarding anti-doping and operates testing at select events in Abu Dhabi.

His two-year suspension only applies to events that are WADA Code signatories, meaning he is free to compete in superfights and events such as ADCC. 

Watch: Paulo Miyao vs Ary Farias, IBJJF 2016 World Championships