[4] Hazle also qualified for the IAAF World Championships in Osaka, Japan, and eventually claimed a silver medal in men's javelin at the Pan American Games in Rio de Janeiro, Brazil, with a seasonal best throw of 75.33 metres.

[7][8] At the 2008 Summer Olympics in Beijing, Hazle competed as a member of the U.S. track and field team in the men's javelin throw, along with his teammates Breaux Greer and Leigh Smith.

He performed a best throw of 72.75 metres from his second attempt, but fell short in his bid for the twelve-man final, as he placed twenty-fifth in the qualifying rounds.

[9] Hazle continued his runner-up streak at the 2009 and 2010 US Outdoor Track and Field Championships, until he claimed his first ever career title in 2011, with a best throw of 78.22 metres.

[10] He was expected to compete for the second time at the IAAF World Championships in Daegu, South Korea, and at the Pan American Games in Guadalajara, Mexico, but forced to withdraw from the competitions because of career ending right elbow injury.