2007 Remains at Pramac d'Antin MotoGP, but on more competitive equipment - a Ducati Desmosedici GP7 and Bridgestone tyres - riding alongside MotoGP veteran Alex Barros. Claims a best ever fifth at the wet French Grand Prix, but the season turns sour when he is injured in a freak 'car boot' accident in the run up to his home German Grand Prix, fracturing his hand, then fractures the other hand when he is taken out by Sylvain Guintoli during practice for the following US GP.
Returns to action at San Marino, but next time out in Portugal he withdraws from the back of the field - having been forced to start from the pitlane, on his spare bike - and reportedly said "I don't have the motivation to fight for the last positions." One day later he was dismissed from the team.
2006 Signs to ride a satellite Ducati GP6 for the d'Antin Pramac team, on Dunlop tyres and alongside Jose Luis Cardoso. Best finish just tenth place at Catalunya , but the German scores three-times more points than team-mate Jose Luis Cardoso. Substitutes for the injured Sete Gibernau at the factory Ducati Marlboro Team.
2005 Remains at the factory Kawasaki team alongside Nakano. Suffers a freak injury during a street demo before round two at Estoril, breaking his wrist - misses three races. Suffers another injury blow when he breaks ankle at round 12 in Japan - misses next four rounds before returning for Valencia season finale. Highlight of year is an eighth place finish at British GP. Loses his Kawasaki ride to rookie Randy de Puniet for 2006.
2004 Races full time alongside Shinya Nakano for Kawasaki in MotoGP. Takes a best finish of ninth, at Qatar, on his way to 15th in the championship.
2003 Official test rider for Kawasaki, but turns heads by beating regular race riders in wild-card rides. Attracts attention from the likes of Ducati as a result, but signs to race for Team Green in 2004.
2002 No permanent ride, but his performances as a 'Supersub' for the injured Garry McCoy and Loris Capirossi at Red Bull Yamaha and West Honda Pons respectively, earns his a full time test deal with Kawasaki.
2001 12th in the 250cc World Championship with the Racing Factory Aprilia team. Scored 55 points.
2000 25th in the 250cc World Championship with 12 points.
1999 16th in the 250cc World Championship with TSR Honda.
1998 Makes 250cc World Championship debut (GER) - finishes 10th.
Wins the European 250cc Championship.
German 250cc Champion with Honda - becomes first ever rider to win every round of the German 250cc series.
1997 Competes in the German 125cc Championship - finishes second in the overall standings.
Makes 125cc World Championship debut (GER).
1996 Raced in the German and European 125cc championships.
1995 Began racing the German 125cc Championship.
1993 Junior German Champion, Motocross 80cc.
1992 Junior German Champion, Motocross 80cc.