He was gold medalist in the Dominican Republic School Sports Games, where he was discovered for the National Team.

[1] At the IBA Youth World Championships, he won 4-1 over Ukrainian Vladyslav Kondratiuk,[3] but lost 1-4 to the Australian Jye Dixon.

[4] He participated in the IBA World Championships, defeating 5-0 to the Kenyan Abednego Kyalo,[5] before losing 0-5 to the Japanese Kazuma Aratake in the round of 16 of the minimumweight category.

[6] Alcántara lost 0-5 to Colombian Yuberjen Martínez, to win the silver medal in the Central American and Caribbean Games.

[7] He gave his home country a gold medal in the boxing competition of the 2023 Pan American Games in the 51 kg category becoming the fourth gold medalist in boxing for the Dominican Republic.