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.
1997 Grand Prix motorcycle racing season 11 races for a commanding win on an Aprilia. The following Grands Prix were scheduled to take place in 1997: †† = Saturday race †† = Saturday race Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points. Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points. Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points. 1997 Grand Prix motorcycle racing season The 1997 Grand Prix motorcycle racing season was the 49th F.I.M. Road