Ku qor sii wadida faqradan - Yepez wuxuu ka mid ahaa wafdiga Ecuador ee dhowr horyaal iyo tartamo caalami ah: 16th Chess Olympiad of Tel Aviv 1964, 17th Chess Olympiad of Havana 1966, 18th Chess Olympiad
Lugano 1968, Tartanka Furan ee Nice - 1974 (Capitan), Tartanka Panamerican ee Havana, 1968, Tartanka II "Apertura" - Bogotá, 1970, Tartanka "Ecopetrol - El Tiempo" - Bogotá, 1970, Tartanka VIII ee Kariibiyaanka iyo Bartamaha Ameerika ee FIDE, Bogotá <unk> 1972.