The Fédération Internationale de Motocyclisme organised the first Road Racing World Championship in 1949, encompassing separate categories for 125cc, 250cc, 350cc, 500cc machines, and sidecars. The inaugural 500cc Grand Prix was held at the Isle of Man TT, won by Harold Daniell. Through the 1950s and into the 1960s, four-stroke engines dominated all classes, with MV Agusta winning the constructors' and riders' championships in all four solo classes in 1958, 1959, and 1960. Honda entered the Isle of Man TT for the first time in 1959, beginning the Japanese manufacturers' gradual rise to dominance.
In the 1960s, two-stroke engine development accelerated rapidly in the smaller classes. Honda achieved a landmark in 1966 by winning the constructors' championship in all five solo classes, and Jim Redman won the first 500cc Grand Prix for a Japanese factory at Hockenheim. From 1969, new FIM rules restricted most classes to two cylinders and all classes to six gears, citing the rising development costs of multi-cylinder machines. This prompted a mass withdrawal by Honda, Suzuki, and Yamaha, leaving MV Agusta — under Giacomo Agostini — effectively unchallenged in the premier class for several seasons.
Yamaha returned in 1973 and Suzuki in 1974, both with two-stroke designs. By the early 1980s, two-stroke machines had completely eclipsed four-strokes across all classes. Agostini remains the most decorated rider in Grand Prix history with 15 titles, including eight in the premier class. The 350cc class ran from 1949 to 1982 and was eventually abandoned. Kenny Roberts became the first American 500cc champion in 1978, riding for Yamaha. Barry Sheene won the first 500cc title for Suzuki in 1976. Mick Doohan dominated the 500cc class through the 1990s, winning five consecutive championships and taking 12 of 15 races in 1997 — still the record for dominance in a single premier-class season.
In 2002, the FIM introduced rule changes to phase out the 500cc two-strokes. Manufacturers could now run either a two-stroke up to 500cc or a four-stroke up to 990cc, and the class was rebranded MotoGP. The four-strokes rapidly proved superior, and by 2003 no two-stroke machines remained in the MotoGP field. Valentino Rossi, who had won the final 500cc two-stroke championship in 2001, moved to Honda and won the first MotoGP title aboard the RC211V. He then moved to Yamaha and secured four more premier-class titles through 2009. Ducati became the first European brand to win both the riders' and constructors' championships in the premier class in 30 years when Casey Stoner won the 2007 title.
For 2007, displacement was reduced to 800cc in an effort to limit speeds that had exceeded 340 km/h. The limit was raised again to 1000cc for 2012, alongside the introduction of Claiming Rule Teams. Marc Marquez debuted in 2013 and became the youngest premier-class world champion and the first rookie champion in the MotoGP era, going on to accumulate seven premier-class titles. In 2021, Fabio Quartararo became the first French rider to win the premier class. Francesco Bagnaia won in 2022 — the first Italian champion since Rossi in 2009 and the first Ducati champion since Stoner. Jorge Martin became the first independent team rider to win the MotoGP World Championship in 2024.
The commercial rights to MotoGP were acquired by Dorna Sports in 1992 and subsequently purchased by Liberty Media — owner of Formula One — in 2025, with the championship operating under the MotoGP Sports Entertainment Group. The FIM remains the sport's sanctioning body. Regulations are negotiated among four entities: the FIM, Dorna, the International Road Racing Teams Association (IRTA), and the Motorcycle Sport Manufacturers Association (MSMA), with Dorna holding a tie-breaking vote. Sprint races were introduced at every Grand Prix weekend in 2023, supplementing the traditional Sunday race with a shorter Saturday sprint.
Giacomo Agostini holds the record for most championships in Grand Prix motorcycle racing with 15. Valentino Rossi and Marc Marquez share the record for most premier-class titles at seven. As of 2026, Rossi holds the record for most premier-class race wins with 89. The 2026 MotoGP calendar consists of 22 rounds across four continents. New regulations taking effect in 2027 will reduce engine displacement from 1000cc to 850cc, reduce fuel tank capacity, and ban ride-height and holeshot devices.