AMA Motocross Championship

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The AMA Motocross Championship is the major motocross series of the United States, held since 1972. It is sanctioned by the American Motorcyclist Association and managed by MX Sports Pro Racing.

The series began in 1972 with the introduction of two classes based on 500 cc and 250 cc engine formulas.[1] A 125 cc class was added in 1974. As motocross technology developed, 500 cc two-stroke motocross bikes became too powerful for the average rider and, faced with diminishing numbers of competitors, the A.M.A. discontinued the 500 cc class after the 1993 season. A women's national championship series was introduced in 1996.[2]

Facing tightening emissions regulations, in 1997, the A.M.A. increased the allowable displacement capacity for four-stroke engines, in an effort to encourage manufacturers to develop environmentally friendlier four-stroke machines.[3] In 2006, the 250 cc division was renamed the MX Class, with an engine formula allowing for 150–250 cc two-stroke or 250–450 cc four-stroke machines.[4] The 125 cc class was renamed the MX Lites Class, allowing 0–125 cc two-stroke or 150–250 cc four-stroke engines. In 2009, the MX class was renamed the 450 Class and the MX Lites class was renamed the 250 Class, to reflect the fact that all the competing manufacturers had adopted four-stroke machinery.

National Champions[edit]

References:[2][5][6]

Year 500cc 250cc 125cc
1972 United States Brad Lackey (Kawasaki) United States Gary Jones (Yamaha)
1973 Netherlands Pierre Karsmakers (Yamaha) United States Gary Jones (Honda)
1974 United States Jimmy Weinert (Kawasaki) United States Gary Jones (Can-Am) United States Marty Smith (Honda)
1975 United States Jimmy Weinert (Yamaha) United States Tony DiStefano (Suzuki) United States Marty Smith (Honda)
1976 United States Kent Howerton (Husqvarna) United States Tony DiStefano (Suzuki) United States Bob Hannah (Yamaha)
1977 United States Marty Smith (Honda) United States Tony DiStefano (Suzuki) United States Broc Glover (Yamaha)
1978 United States Rick Burgett (Yamaha) United States Bob Hannah (Yamaha) United States Broc Glover (Yamaha)
1979 United States Danny LaPorte (Suzuki) United States Bob Hannah (Yamaha) United States Broc Glover (Yamaha)
1980 United States Chuck Sun (Honda) United States Kent Howerton (Suzuki) United States Mark Barnett (Suzuki)
1981 United States Broc Glover (Yamaha) United States Kent Howerton (Suzuki) United States Mark Barnett (Suzuki)
1982 United States Darrell Schultz (Honda) United States Donnie Hansen (Honda) United States Mark Barnett (Suzuki)
1983 United States Broc Glover (Yamaha) United States David Bailey (Honda) United States Johnny O'Mara (Honda)
1984 United States David Bailey (Honda) United States Rick Johnson (Yamaha) United States Jeff Ward (Kawasaki)
1985 United States Broc Glover (Yamaha) United States Jeff Ward (Kawasaki) United States Ron Lechien (Honda)
1986 United States David Bailey (Honda) United States Rick Johnson (Honda) United States Micky Dymond (Honda)
1987 United States Rick Johnson (Honda) United States Rick Johnson (Honda) United States Micky Dymond (Honda)
1988 United States Rick Johnson (Honda) United States Jeff Ward (Kawasaki) United States George Holland (Honda)
1989 United States Jeff Ward (Kawasaki) United States Jeff Stanton (Honda) United States Mike Kiedrowski (Honda)
1990 United States Jeff Ward (Kawasaki) United States Jeff Stanton (Honda) United States Guy Cooper (Suzuki)
1991 France Jean-Michel Bayle (Honda) France Jean-Michel Bayle (Honda) United States Mike Kiedrowski (Kawasaki)
1992 United States Mike Kiedrowski (Kawasaki) United States Jeff Stanton (Honda) United States Jeff Emig (Yamaha)
1993 United States Mike LaRocco (Kawasaki) United States Mike Kiedrowski (Kawasaki) United States Doug Henry (Honda)
Year 250cc 125cc Women's MX
1994 United States Mike LaRocco (Kawasaki) United States Doug Henry (Honda)
1995 United States Jeremy McGrath (Honda) United States Steve Lamson (Honda)
1996 United States Jeff Emig (Kawasaki) United States Steve Lamson (Honda) United States Shelly Kann
1997 United States Jeff Emig (Kawasaki) United States Ricky Carmichael (Kawasaki) United States Tracy Fleming
1998 United States Doug Henry (Yamaha) United States Ricky Carmichael (Kawasaki) United States Dee Wood
1999 South Africa Greg Albertyn (Suzuki) United States Ricky Carmichael (Kawasaki) Italy Stefy Bau
2000 United States Ricky Carmichael (Kawasaki) United States Travis Pastrana (Suzuki) United States Jessica Patterson
2001 United States Ricky Carmichael (Kawasaki) United States Mike Brown (Kawasaki) New Zealand Tania Satchwell
2002 United States Ricky Carmichael (Honda) United States James Stewart Jr. (Kawasaki) Italy Stefy Bau
2003 United States Ricky Carmichael (Honda) South Africa Grant Langston (KTM) Germany Steffi Laier
2004 United States Ricky Carmichael (Honda) United States James Stewart Jr. (Kawasaki) United States Jessica Patterson
2005 United States Ricky Carmichael (Suzuki) United States Ivan Tedesco (Kawasaki) United States Jessica Patterson
Year MX Class MX Lites Class Women's MX
2006 United States Ricky Carmichael (Suzuki) United States Ryan Villopoto (Kawasaki) United States Jessica Patterson
2007 South Africa Grant Langston (Yamaha) United States Ryan Villopoto (Kawasaki) United States Jessica Patterson
2008 United States James Stewart Jr. (Kawasaki) United States Ryan Villopoto (Kawasaki) United States Ashley Fiolek
Year 450 Class 250 Class Women's MX
2009 Australia Chad Reed (Suzuki) United States Ryan Dungey (Suzuki) United States Ashley Fiolek
2010 United States Ryan Dungey (Suzuki) United States Trey Canard (Honda) United States Jessica Patterson
2011 United States Ryan Villopoto (Kawasaki) United Kingdom Dean Wilson (Kawasaki) United States Ashley Fiolek (Honda)
2012 United States Ryan Dungey (KTM) United States Blake Baggett (Kawasaki) United States Ashley Fiolek (Honda)
2013 United States Ryan Villopoto (Kawasaki) United States Eli Tomac (Honda) United States Jessica Patterson(Honda)

See also[edit]

References[edit]

  1. ^ "The First Sixty Years: An Illustrated History of the American Motorcyclist Association". American Motorcyclist (Books.Google.com). January 1984. Retrieved 2 October 2010. 
  2. ^ a b "Women's Motocross National". Women's Motocross Association. Retrieved 2 October 2010. 
  3. ^ "Counting Strokes". American Motorcyclist (Books.Google.com). June 1997. Retrieved 2 October 2010. 
  4. ^ "Motocross Rule Book" (PDF). AMA. Retrieved 15 March 2010. 
  5. ^ "AMA Motocross Champions". American Motorcyclist (Books.Google.com). February 1986. Retrieved 2 October 2010. 
  6. ^ "Every Champ There Ever Was". Motocross Action. Archived from the original on 25 October 2010. Retrieved 2 October 2010. 

External links[edit]