Prefontaine was a member of the 2008 ACF Culinary Regional Team USA that placed first in the 2008 Internationale Kochkunst Ausstellung. He was also a member of the 2012 ACF Culinary Team USA that placed third overall in the 2010 Culinary World Cup in Luxembourg. He has been a coach for ACF Culinary Team USA since 2013, and is focused on preparing the team for the IKA in 2016. He has been competing for over 15 years and has received several medals in national and international competitions. In 2014, Prefontaine won ACF’s U.S.A.’s Chef of the Year.