Kammala jumla mai zuwa: Yepez ya kasance wani ɓangare na tawagar Ecuador a cikin Gasar Cin Kofin Duniya da Gasar Duniya da yawa: 16th Chess Olympiad na Tel Aviv 1964, 17th Chess Olympiad na Havana 1966,
Gasar Olympiad ta Chess ta 18 a Lugano, 1968, Buɗaɗɗen Gasar Nice - 1974 (Capitan), Gasar Panamerican na Havana, 1968, Gasar "Apertura" ta II - Bogotá, 1970, Gasar "Ecopetrol - El Tiempo" - Bogotá, 1970, Gasar Yankin Yankin Caribbean da Amurka ta Tsakiya ta VIII FIDE, Bogotá <unk> 1972.