1983 Grand Prix motorcycle racing season championship. In a fitting end to a successful career, Roberts won his last-ever Grand Prix race, however Spencer was able to secure second place to claim the world championship. The two riders dominated the season with each claiming six victories and six pole positions in the 12 race series. The following Grands Prix were scheduled to take place in 1983: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1983 Grand Prix motorcycle racing season The 1983 Grand Prix motorcycle racing season was the 35th F.I.M. Road racing World Championship season.
2009 Malaysian Grand Prix the race did not reach the required 75% distance (42 laps) for full points to be awarded, half-points were given instead, for only the fifth time in Formula One history and the first since the 1991 Australian Grand Prix. The race distance of was the fifth-shortest ever covered in a World Championship Grand Prix. Brawn GP became only the second constructor to win their first two World Championship Grands Prix since Alfa Romeo won the first two ever, in . After the Australian Grand Prix, Jenson Button led the Drivers' Championship by two points from Rubens Barrichello and by four