Boris has been a competitive swimmer since 1983, placing second in backstroke in the Cuban Nationals in 1990. His unique blend of swimming experience and dedication has made him escalate to the top of ranking at in the nation. Boris won his first triathlon in 2002, winning more than 20 races. Among his best results are a 4th and 16th place overall in the 2004 and 2003 in the USAT National Championships. He also qualified for the national USAT team two consecutive times in 2004 and 2005.