The Masaryk circuit () or Masarykring, also referred to as the Brno Circuit, refers to two motorsport race tracks located in Brno, Czech Republic. The original street circuit was made up of public roads, and at its longest measured . In 1949, events such as the Czechoslovakian Grand Prix attracted top teams and drivers. The track is named after the first president of Czechoslovakia, Tomáš Garrigue Masaryk. Racing on the old roads ended after 1986, when the new (current) circuit was opened. The annual Motorcycle Grand Prix of the Czech Republic is the circuit's most important event. It had been held here since 1950 and was the most famous motor race in the Czech Republic. The race was part of the World Grand Prix in the years of 1965–1982, 1987–1991, 1993–2020. The FIA World Touring Car Championship, FIA GT1 World Championship, Formula Two and the Superbike World Championship also raced at the circuit. The Czech Republic Motorcycle Grand Prix was more of a promoter event than a profit-raiser itself. Since tobacco advertising has been banned in 2007, it is common among the other MotoGP events. The Brno Circuit is historically one of the oldest circuits, on the place were also held the most motorcycle championships in history after the TT Circuit Assen. Original circuits The original layout ran anti-clockwise on approximately of public roads in the outskirts of Brno, where the start/finish was located in Bosonohy. The circuit went east past Kamenny and then went north past the Bohunice University Campus in Kejbaly, and went through the villages of Libusino, Kohouvotice and Žebětín, out to Ostrovacice, through Veselka and back through a series of fast straights and kinks. From 1930 to 1937, the Masaryk circuit races attracted some of the top drivers and teams. On September 25, 1949, the race was held for the first and the last time in Czechoslovakia as part of the Grand Prix motor racing (later evolved into Formula One). The Czechoslovakian Grand Prix in 1949 was run clockwise on a shorter layout, which turned right at Veselka, bypassed Ostrovacice and entered Žebětín from the south rather than the west. In spite of a crowd in excess of 400,000 people, this would be the last Grand Prix for cars on the old circuit. Beginning in 1950, the circuit played host to the Czechoslovakian motorcycle Grand Prix, which became a world championship event from 1965. The circuit