1981 Grand Prix motorcycle racing season developed in the 1950s, to aluminium frames featuring large, twin beams as first pioneered by Spanish constructor, Antonio Cobas. The following Grands Prix were scheduled to take place in 1981: Points are awarded to the top ten finishers. A rider has to finish the race to earn points. 1981 Grand Prix motorcycle racing season The 1981 Grand Prix motorcycle racing season was the 33rd F.I.M. Road Racing World Championship season. Suzuki riders Marco Lucchinelli and Randy Mamola battled it out to the final race of the season with the Italian rider claiming the crown and Mamola finishing runner-up for the
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