Known for competing as a member of Team USA's Triathlete team at the 2011 Pan American Games and 2012 Summer Olympics. He earned a silver medal at the former.
He graduated from Florida Atlantic University, where he competed as a member of the school's triathlon team. He became a naturalized US citizen at age 20.
He was first invited to train with the US national triathlon team at the US Olympic Training Center in 2003. In 2013, he began competing for the Puerto Rican national triathlon team.
He emigrated to the US in 1997 alongside his mother and sister.
He and fellow triathlete both competed at the 2012 Summer Olympics in Brownlee's home country of England.