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.
2015 Speedway Grand Prix of Slovenia only dropped one point in the entire meeting, finishing to Jason Doyle in heat 18. Overall, Woffinden extended his lead in the world title race to 25 points, with Hancock leapfrogging Pedersen into second place. 2015 Speedway Grand Prix of Slovenia The 2015 Mitas Slovenian FIM Speedway Grand Prix was the ninth race of the 2015 Speedway Grand Prix season. It took place on September 12 at the Matija Gubec Stadium in Krško, Slovenia. First reserve Peter Kildemand replaced Jarosław Hampel, who had injured himself during the 2015 Speedway World Cup. The Speedway Grand Prix Commission also nominated Aleksander Čonda