Ryan Villopoto is an American former professional motocross and supercross racer. He competed in the AMA Motocross Championships from 2005 to 2014. The four-time supercross and three-time motocross champion from Poulsbo, Washington raced his entire career for the Kawasaki factory racing team in the supercross and outdoor motocross series. His retirement from supercross was announced on January 3, 2015 on the opening day of the 2015 Monster Energy Supercross season. His trainer was Aldon Baker.
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Supercross
2010
While leading the Main of Round 14 at St Louis, Villopoto came up short on a triple jump and leaped from his bike landing hard. His bike dived into the face of the third jump and flipped over several times. Medical workers arrived on the scene and cut Villopoto's racing boot off his foot. Villopoto had to be carried off the track. Further examination revealed a broken right tibia and fibula and surgery was performed to stabilize it. He withdrew from the 2010 series after his Round 14 injury with 266 championship points, leaving him in 4th place by the season's end.
Villopoto won his second AMA Supercross Championship, capturing the title with four rounds remaining in the season. He won 9 of 16 rounds of racing.
2013
Villopoto won the 2013 Monster Energy AMA Supercross Championship. It was Villopoto's third straight AMA Supercross Series championship, putting him in an elite class of off-road motorcycle champions – only Bob Hannah, Jeremy McGrath, and Ricky Carmichael have won three straight SX titles. He would also go on to win the Lucas oil Pro Motocross Championship.
2014
Villipoto wrapped up his 4th straight Monster Energy Supercross championship with one round remaining in the 2014 series. On March 8, 2014, Villopoto won the 450cc Final at Daytona International Speedway. It was his 4th career win at Daytona moving him within one win of Ricky Carmichael's all-time record of five Daytona wins. He had previously won races in Phoenix and Oakland during the Supercross season. On April 5, 2014, Villopoto won the 450cc Main Event at Houston's Reliant Stadium, bringing his total career Supercross All-Time Wins number to 38, making him 5th place overall behind Chad Reed. On April 26, 2014 Villopoto dominated the highly competitive Supercross race at round 16 in New York, Metlife stadium, collecting his 6th win of the season.
2015
Villopoto chose to compete in the FIM Motocross World Championship, but withdrew from the series after discovering the injuries sustained from a crash in the Trentino GP were worse than initially realized. In July, Villopoto announced his retirement on his official website.