By Ludo Saenz at ringside

Coliseo Universidad Del Norte in Barranquilla, Colombia. In the headline bout of the thirteenth edition of the WBA's KO Drug Festival, WBA interim-lightweight champion Darleys Perez (31-1, 20 KOs) retained his crown with a sixth round knockout over Jaider Parra (23-2-1, 12 KOs).

Perez started slow but the tempo picked up round by round. By the fifth, the fight was all Darleys Pérez, and he was practically connecting all of his punches at will. In the sixth, the champion landed a perfect left hook to the liver that left Parra down and in pain. 

Referee Tony Weeks was forced to stop the fight at 1:29 of round six.

In the co-main event, Colombian Liliana Palmera conquered the super bantamweight interim WBA world title, winning by a wide unanimous decision over ten rounds, Venezuelan contender, Ana Lozano. The scores were 99.5-92, 98-92 and 98.92. 

Colombian contender Robert Barrera, won by TKO in the fifth round, over Panamanian world ranked Gilberto "Cacique" Pedroza to win the flyweight Fedelatin scepter, a subsidiary of the WBA. Barrera advanced his record to 10-0, 6 KOs. Pedroza went down to 11-3-2, 6 KOs.