Martinez played in Guatemala where she won with her U-18 squad the 2013 Youth Pan-American Cup bronze medal match 3–1 to Argentina after losing 2–3 to Puerto Rico due to lack of concentration. During the Junior Pan-American Cup held in La Habana, Cuba, Martínez settled the silver medal when her junior team lost 1–3 to Mexico. She then played the FIVB U18 World Championship and ranked eight with her national team. and shortly afterwards played the FIVB U20 World Championship in June, also ranking eight with her national team. She won the silver medal in the 2013 FIVB U23 World Championship winning the silver medal after being defeated by China in the gold medal match.