She later played the Pan-American Cup in Peru, winning the silver medal when her national team lost to the United States 0–3 in the championship match. In spite of that, they qualified to the 2016 FIVB Grand Prix. As part of a historic Dominican Republic delegation to the 2015 Pan American Games, she won with her national team the bronze medal after losing to the United States in the semifinals and defeated 3-1 the Puerto Rico national team. Martínez then traveled to Ankara, Turkey to play the U23 World Championship, winning the bronze medal after falling 2–3 to Brazil but defeating Japan 3–2 to settle with the bronze and the Best Outside Spiker award.