Career
He set both a national record and a personal best throw of 78.69 metres, by finishing first at Florida Relays and APSU Governors Invitational in Gainesville, Florida. Guerra represented Chile at the 2008 Summer Olympics in Beijing, where he competed for the men"s javelin throw. He performed a best throw of 73.03 metres from his third and final attempt, but fell short in his bid for the twelve-man final, as he placed twenty-fourth overall in the qualifying rounds.