The AMA Supercross Championship is an American motorcycle racing series. Founded by the American Motorcyclist Association (AMA) in 1974, the AMA Supercross Championship races are held from January through early May. Supercross is a variant of motocross which involves off-road motorcycles on a constructed dirt track consisting of steep jumps and obstacles; the tracks are usually constructed inside a sports stadium. The easy accessibility and comfort of these stadium venues helped supercross surpass off-road motocross as a spectator attraction in the United States by the late 1970s.
Enduro is a form of motorcycle sport run on extended cross-country, off-road courses. Enduro consists of many different obstacles and challenges. The main type of enduro event, and the format to which the World Enduro Championship is run, is a time-card enduro, whereby a number of stages are raced in a time trial against the clock.
Gregory Alan "Greg" Hancock is an American motorcycle speedway rider.
The AMA Motocross Championship is an American motorcycle racing series. The motocross race series was founded and sanctioned by the American Motorcyclist Association (AMA) in 1972. The series is the major outdoor motocross series in the United States and is managed by MX Sports Pro Racing.
The World Championship of Speedway is an international competition between the highest-ranked motorcycle speedway riders of the world, run under the auspices of the Fédération Internationale de Motocyclisme (FIM).
Eddie Castro, known as 'Fast Eddie', is a Speedway rider who has raced regularly in the AMA National Speedway Championship, finishing fourth in 2002 and sixth in the 2010 competition. Castro made his debut in 1980, and has since competed in several prestigious competitions, including the Jack Milne Cup and the Fair Derby, winning the latter in 2009. He also won the Spring Classic handicap in March 1999.
The 2010 AMA National Speedway Championship Series . The title was won by Billy Janniro, his second in total.
The 2014 AMA National Speedway Championship Series was staged over four rounds, which were held at Costa Mesa, Ventura, Industry and Auburn. Billy Janniro took the title, his fifth in total, winning all four rounds.
The 2013 AMA National Speedway Championship Series was staged over three rounds, which were held at Ventura, Victorville and Auburn. Billy Janniro took the title, his fourth in total, winning two of the rounds in the process.
The 2012 AMA National Speedway Championship Series was staged over a single round, which was held at Auburn on September 28. Billy Hamill took the title, his fifth in total, dropping just one point in his opening ride.
The 2011 AMA National Speedway Championship Series was staged over a single round, which was held at Auburn on September 30. Billy Janniro took the title, his third in total, scoring a maximum in the process.
The 2007 AMA National Speedway Championship Series was staged over three rounds, which were held at Costa Mesa, Auburn and Auburn. Billy Hamill took the title, his third in total, winning two of the rounds in the process.
The 2008 AMA National Speedway Championship Series was staged over three rounds, which were held at Costa Mesa, Auburn and Auburn. Defending champion Billy Hamill only raced in the opening round. In his absence, Billy Janniro won the title for the first time, winning all three rounds in the process. It was the first time neither Greg Hancock or Billy Hamill had won the title since Mike Faria in 1997.
The 2005 AMA National Speedway Championship Series was staged over three rounds, which were held at Auburn, Industry Hills and Auburn. Greg Hancock won the title for a sixth time, and for the third time in succession.
The 2004 AMA National Speedway Championship Series was staged over three rounds, which were held at Auburn, Victorville and Auburn. Greg Hancock won the title for a fifth time, and for the second time in succession.
The 2003 AMA National Speedway Championship Series was staged over two rounds, which were both held at Auburn on July 25 and September 26. Greg Hancock won the title for the fourth time, his first since 2000.
The 2002 AMA National Speedway Championship Series was staged over three rounds, which were held at San Bernardino, Auburn and Auburn. Billy Hamill successfully retained the title.
The 2016 AMA National Speedway Championship Series was staged over four rounds, held at Costa Mesa, Ventura, Industry and Auburn. It was won by Billy Janniro, who beat Max Ruml and Dillon Ruml. It was the seventh title of Janniro's career, and his fourth in-a-row.
The 2015 AMA National Speedway Championship Series was staged over four rounds, which were held at Costa Mesa, Ventura, Industry and Auburn. Billy Janniro took the title, his sixth in total, winning two of the four rounds.
The 2017 AMA National Speedway Championship Series was staged over four rounds, held at Ventura, Santa Maria, Industry and Auburn. It was won by Billy Janniro, who beat Max Ruml and Broc Nicol. It was the eighth title of Janniro's career, and his fifth in-a-row.
