Durañona competed for Dominica in the men's triple jump at the 2016 Summer Olympics in Rio de Janeiro. Leading up to his maiden Games, he successfully eclipsed the IAAF Olympic standard (16.85) with a best jump of 16.98 m for a gold-medal triumph at the 2015 NACAC Championships in San José, Costa Rica. Durañona crashed out of the qualifying phase without attaining a mark against his name, failing to produce a single legal jump in all three attempts. Durañona also served as the country's flag bearer at the parade of nations segment of the opening ceremony.