Rómulo Méndez
He was the first Guatemalan referee ever to participate in a World Cup finals , refereeing one match in the 1982 World Cup and one match in the 1986 edition . 
<triplet> World Cup <subj> 1982 World Cup <obj> has part <subj> 1986 <obj> has part <triplet> 1982 World Cup <subj> 1982 <obj> point in time