He received a gold medal at the 2000 Summer Olympics in Sydney,[1] and added another at the 2007 Pan American Games in Rio de Janeiro.

In the bronze medal match in the men's 80+ kg class at the 2008 Summer Olympics, Matos was set against Kazakhstan's Arman Chilmanov.

[7] Swedish referee Chakir Chelbat gave a time warning at 40 seconds, but Kyeshi elapsed without Matos returning to the center.

"[8] After Chilmanov was declared the winner, Matos briefly argued with Chelbat and then kicked him in the face, punched a judge in the arm, and spat on the floor of the arena before being escorted out by security with his coach, Leudis Gonzalez.

[10][13][14] Matos's coach Leudis González said of the referee's initial decision to end the fight, "He was too strict..." and accused the Kazakhstan team of offering bribes.

[15] In a 2018 interview with the Havana Times, Matos expressed his regret at his actions at the 2008 Summer Olympics, stating that he had wished to continue his taekwondo career at least until the next year's World Championships.