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.
A Formula One Grand Prix is a sporting event which takes place over three days, with a series of practice and qualifying sessions prior to the race on Sunday. Current regulations provide for two free practice sessions on Friday, a morning practice session and an afternoon qualifying session held on Saturday, and the race held on Sunday afternoon or evening, although the structure of the weekend has changed numerous times over the history of the sport. Historically, the Monaco Grand Prix held practice on Thursday rather than Friday, and the whole schedule for the Las Vegas, Bahrain and Saudi Arabian Grands Prix is brought forward by one day. At most Formula One race weekends, other events such as races in other Fédération Internationale de l'Automobile (FIA) series, such as Formula 2 or Formula 3, are held.
Turismo Carretera is a popular stock car racing series in Argentina, and the oldest auto racing series still active in the world. The series is organized by Asociación Corredores de Turismo Carretera.
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). The first official championships were held in 1936.
Superbike World Championship is a silhouette road racing series based on heavily modified production sports motorcycles.
The Supersport World Championship, abbreviated to WorldSSP, is a motorcycle racing competition on hard-surfaced circuits, based on mid-sized sports motorcycles. Competition machines were originally based on production-based motorcycles with 600 cc to 955 cc engines, depending on the number of cylinders. After trials in UK national series British Supersport, from 2022 the regulations have changed to allow eligibility of larger-displacement engines, to reflect the engine sizes being produced and encourage different manufacturers.
The FIM Motocross World Championship is the premier championship of motocross racing, organized by the Fédération Internationale de Motocyclisme (FIM), divided into two distinct classes: MXGP and MX2. Race duration is 30 minutes plus two laps per race. The series runs 18 events with two races per class at each round. The FIM Women's Motocross World Championship(MXW) is a women-only motorcross championship, inaugurated in 2005, and is a feeder series to the FIM Motocross World Championship.
Long track is a version of track racing, that takes place on tracks ranging from 425 to 1,000 metres in length at high speeds. There are also subtle differences between longtrack and speedway such as the machinery used in longtrack bike is slightly larger and has a two-speed gearbox. Races usually consist of six riders although occasionally they have eight. Longtrack is very similar with another form of track racing, Grasstrack. The two sports use the same machinery and have a combined World Championship
The Sidecar Motocross World Championship is an annual event, first held in 1980. It is organized by the Fédération Internationale de Motocyclisme (FIM). Before 1980, a European competition was held from 1971 onwards.
The 2010 FIM Sidecarcross World Championship, the 31st edition of the competition, started on 5 April and finished after fourteen race weekends on 12 September 2010.
The 2011 FIM Sidecarcross World Championship, the 32nd edition of the competition, started on 3 April and finished after thirteen race weekends on 11 September 2011.
The 2012 FIM Sidecarcross World Championship, the 33rd edition of the competition, started on 1 April and finished after eleven race weekends on 16 September 2012.
The 2003 FIM Sidecarcross World Championship, the 24th edition of the competition, started on 6 April and finished after thirteen race weekends on 7 September 2003.
The 2002 FIM Sidecarcross World Championship, the 23rd edition of the competition, started on 1 April and finished after fourteen race weekends on 22 September 2002.
The 2013 FIM Sidecarcross World Championship, the 34th edition of the competition, started on 1 April and finished after fourteen race weekends on 22 September 2013.
The 2014 FIM Sidecarcross World Championship, the 35th edition of the competition, started on 13 April and finished after ten Grand Prix weekends on 21 September 2014.
The 2001 FIM Sidecarcross World Championship, the 22nd edition of the competition, started on 1 April and finished after fourteen Grand Prix on 30 September 2001.
The 2000 FIM Sidecarcross World Championship, the 21st edition of the competition, started on 19 March and finished after thirteen Grand Prix on 24 September 2000.
The 2016 FIM Sidecarcross World Championship, the 37th edition of the competition, started on 10 April and finished after eleven events on 18 September 2016.
The FIM Supercross World Championship is the premier championship for international stadium supercross racing. It is organized by the Fédération Internationale de Motocyclisme (FIM), the global governing body of motorcycle racing.
Magnus Reiten 
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