Ganigan Lopez and Zulina Munoz remain WBC champions in their own right with decisive victories in alternate Mexican venues.
Lopez, the current light flyweight belt holder, helped himself to a one-sided points win over Jonathan Taconing. One judges somehow scored the bout 115-112, although scores of 119-109 and 118-110 were a better reflection of how the contest transpired as a whole.
Munoz had a much easier task on her hands as she knocked out Vanessa Taborda in four rounds at the Gimnasio Municipal “Jose Neri Santos” to retain the women’s super flyweight version.
On the Lopez v Taconing undercard, ex-world title holder Pedro Guevara out-pointed Ruben Montoya in a clash that was halted two rounds shy of the distance.
A cut from an accidental headbutt meant the fight went to the scorecards prematurely and was awarded to Guevara 80-72, 79-73 and 78-74.
In Panama, former interim world super-featherweight champion Bryan Vasquez, now operating at lightweight, stopped Angel Granados in the second round at the Gimnasio Los Naranjos.
Vasquez, 28, dropped Granados three times in the session and eventually the bout was called off with some 40 seconds left of the second.
The Costa Rican is now 35-2 as a pro, with his only losses coming in world title challenges against Javier Fortuna in May 2015 and Takashi Uchiyama back in November 2012.