In 2011, Villopoto had a dominating season winning the Monster Energy AMA Supercross, an FIM World Championship title, the AMA 450 Motocross Championship, the Motocross of Nations Chamberlin trophy, and the Monster Energy Cup. He successfully defended his Monster Energy AMA Supercross Championship in 2012, but an injury forced him to miss his title defense in the AMA Pro Motocross Championship. Villopoto has been with Kawasaki since his amateur career as part of Team Green. He has a Supercross Lites West Region Championship and three 250 motocross championships. Earning his first supercross class win in 2009, Villopoto has since accumulated a total of 24 supercross wins and sits seventh on the all-time win list.