After a rather unsuccessful participation in the Youth World Championships in Bressanone in 2009, it did not attract international attention until 2012. Fifth over 100 meters at the Jamaican Championships, he qualified as a replacement for the Olympic 4 x 100 meter relay team. In London he started in the preliminary stages and helped Jamaica to the final, where the relay team could win gold without his commitment. Nevertheless, Bailey-Cole is considered an Olympic champion with his use in the run-up. On September 7th, it ran under 10 seconds for the first time in Brussels with 9.97 seconds. With a win at the ISTAF in Berlin, he underlined his status as one of the greatest sprint talents.
In 2013 he started from May with constant performances in the IAAF World Challenge and Diamond League races until he finally improved his best time to 9.96 s at a local meeting in Kingston on June 8th. At the Jamaican Championships he secured his participation in the World Championships in Moscow with a second place . In July he finished sixth at the two Diamond League meetings in Lausanne and Monaco before finishing his preparation for the World Cup on July 27 with a relay race in London . At the 2013 World Championships in Moscow , he ran after a new best of 9.93 s in the semifinals 9.98 s in the final and reached fourth place. With the Jamaican relay, he won the gold medal before the USA. In Zurich he finished sixth with 10.02 s, and won the Berlin ISTAF with a weaker field in 10.04 s.