Wednesday morning at the WBC’s 57th annual convention at the Grand Oasis Cancun was devoted mainly to ratings.
 
The afternoon assembly meeting was devoted to mandatory defenses.
 
Featherweight: Champion Gary Russell Jr. (United States)
Russell was ordered to make his mandatory defense against No. 1 ranked mandatory challenger Tugstsogt Nyambayar of Mongolia/U.S.A.


 
Super Bantamweight: Champion Rey Vargas
Vargas made a mandatory defense on July 13, 2019, and is currently in a voluntary stage.
 
Bantamweight: Champion Nordine Oubaali (France)
Oubaali won the vacant title and is required to make two mandatory defenses. The first is scheduled for November 7 against WBC interim champion Takuma Inoue of Japan. No. 1 ranked mandatory challenger Luis Nery of Mexico has accepted a fight against No. 5 ranked Emmanuel Rodriguez of Puerto Rico on November 23.
 
Super Flyweight: Champion Juan Francisco Estrada (Mexico)
Estrada is scheduled to fight WBA champion Kal Yafai of Great Britain in a unification bout in January, with the date to be announced. No. 1 ranked Srisaket Sor Rungvisai of Thailand was approved as the mandatory challenger.
 
Flyweight: Championship Vacant
No. 1 ranked Julio Cesar Martinez of Mexico is scheduled to fight No. 2 ranked Cristofer Rosales of Nicaragua for the vacant title on December 20. A final eliminator was ordered between No. 3 ranked Junto Nakatani of Japan and No. 4 ranked McWilliams Arroyo of Puerto Rico to determine the first mandatory challenger.
 
Light Flyweight: Ken Shiro (Japan)
Shiro is scheduled to fight IBF champion Felix Alvarado of Nicaragua in a unification bout on December 23. Shiro made a mandatory defense on July 12, 2019, and is currently in a voluntary stage.
 
Minimumweight: Champion Wanheng Menayothin (Thailand)
Menayothin is scheduled to make a mandatory defense against No. 1 ranked Simpiwe Koncko of South Africa on October 25.