Gayle mentally killed off the opposition with an excellent 8.46m in the first round and they failed to recover. Favourite Juan Echevarria of Cuba folded early and could only manage 8.34m for third. Olympic champion Jeff Henderson of the United States grabbed silver with 8.39m.
In the only other final involving a Jamaican on Saturday, former World Champion Yohan Blake posted 9.97 for 5th in the men’s 100m which was won by American Christian Coleman in 9.76.
Day three will see Jamaicans in the mixed relay final and the 100m for women.