He joined the Philippine Black Belt contingent, the national team for students pursuing their elementary and high school studies, at age 12.

When he was two years older, he joined the Philippine junior national team and began to compete in international tournaments such as the Korean Open and the Asian Junior Championship.

[5] Lizardo first garnered attention at the 2001 Asian Junior Taekwondo Championships where he captured the silver medal in the men's finweight.

He ended his competitive career when he quit as a member of the Philippine men's taekwondo team in November 2015 due to his leg injury.

[7] By 2016, Lizardo now serves as head coach of the Philippine national taekwondo team.