The FIM Road Racing World Championship was first organised in 1949, covering five separate categories: 125cc, 250cc, 350cc, 500cc, and sidecars. Harold Daniell won the first ever 500cc Grand Prix race, held at the Isle of Man TT. Through the 1950s and much of the 1960s, four-stroke engines dominated all classes, with MV Agusta achieving extraordinary dominance by winning the constructors' and riders' championships in all four solo classes in 1958, 1959, and 1960.
Two-stroke engines began to emerge in the smaller classes during the 1960s. Honda entered the Isle of Man TT for the first time in 1959, and by 1966 had won the constructors' championship in all five solo classes. Jim Redman took Honda's first ever 500cc Grand Prix win at Hockenheim in 1966 — also the first premier-class victory for a Japanese factory.
In 1969 the FIM introduced new rules restricting cylinder counts and gear ratios in an effort to control development costs, triggering a mass withdrawal by Honda, Suzuki, and Yamaha. MV Agusta effectively became the only works team for several years until Yamaha (1973) and Suzuki (1974) returned with two-stroke designs. By the 1980s, two-strokes had completely eclipsed four-strokes across all classes.
From the mid-1970s through to 2001, the premier class allowed 500cc displacement with a maximum of four cylinders. The two-stroke configuration dominated because it produced power with every crank rotation, unlike the four-stroke which fires only every second rotation. Kenny Roberts became the first American champion in 1978, riding a Yamaha, and in 1979 led a rider revolt that threatened to establish a rival series — ultimately increasing riders' political influence and improving safety standards.
Giacomo Agostini of MV Agusta and later Yamaha accumulated eight premier-class championships, a record that stood for decades. Mick Doohan was statistically the most dominant single-season performer in the premier class, winning 12 of 15 races in 1997. Valentino Rossi claimed the final two-stroke premier-class title in 2001.
In 2002 the premier class was rebranded MotoGP. Manufacturers could choose between 500cc two-strokes or new four-stroke machines of up to 990cc. Four-strokes quickly proved superior, and by 2003 no two-stroke machines remained in the MotoGP field. Ducati made its Grand Prix debut in the four-stroke class in 2003. The 250cc and 125cc classes continued with two-strokes until 2010 and 2012 respectively.
Engine capacity was reduced to 800cc in 2007. Ducati won both the riders' and constructors' championships that year with Casey Stoner, the first European manufacturer to claim the premier class constructors' title in 30 years, with Stoner winning 10 of 17 races. Capacity was raised again to 1,000cc from 2012.
The 250cc class was replaced by Moto2 in 2010, initially using a Honda-derived 600cc four-stroke inline-four engine; from 2019, Triumph supplied a 765cc triple. The 125cc class became Moto3 in 2012, using 250cc four-stroke singles with a weight limit of 65 kg with fuel. Sprint races were introduced at all MotoGP rounds in 2023, with a shorter race on Saturday complementing the full Grand Prix on Sunday.
The most successful rider across all Grand Prix classes is Giacomo Agostini, with 15 world titles and 122 race wins. In the premier class, Agostini holds eight championships, followed by Valentino Rossi and Marc Márquez with seven each. Rossi holds the premier-class race wins record with 89 victories. Marc Márquez became the youngest premier-class champion in the MotoGP era in 2013 and won his seventh title in 2025 after an unprecedented 2,184-day drought between championships. In 2025, Márquez and his brother Álex became the first siblings to finish first and second in a Grand Prix championship.
Notable champions include Jorge Lorenzo (three titles for Yamaha and Ducati), Casey Stoner (two titles across Ducati and Honda), and Joan Mir, who gave Suzuki their first premier-class title since 2000 in 2020. Fabio Quartararo in 2021 became the first French rider to win the premier class. Francesco Bagnaia claimed the championship in 2022, the first Italian winner since Rossi in 2009 and the first Ducati rider since Stoner in 2007. Jorge Martín won in 2024 as the first independent-team rider to claim the MotoGP title.
The starting grid positions around 20 riders arranged in three columns, determined by qualifying speeds. Each full race lasts approximately 45 minutes with no scheduled pit stops for fuel or tyres. A flag-to-flag rule introduced in 2005 allows riders to pit and switch to wet-weather machines if rain falls mid-race. Sprint races, introduced in 2023, run at roughly half the length of the Grand Prix and award approximately half the championship points.
The 2026 MotoGP World Championship visits 22 circuits across Europe, Asia, the Americas, and the Middle East, spanning venues including the Mugello Circuit, Circuit de Barcelona-Catalunya, the TT Circuit Assen, Phillip Island, Sepang, and Lusail. The championship has continued to expand its global footprint since the late 1980s, adding rounds in Australia (1989), Malaysia, Qatar (the sport's first night race in 2008), and Indonesia.