| 2011 | Porsche Works Driver 1st 24h Daytona (GT class) 5th American Le Mans Series Championship (GT class, 2 wins) 1st 25h Thunderhill (overall classification) |
|---|---|
| 2010 | Porsche Works Driver 1st 24h Le Mans (GT2 class) Winner 24h Spa (overall classification) 3rd 24h Daytona (GT class) American Le Mans Series Championship |
| 2009 | Porsche Factory Driver 3rd American Le Mans Series Championship (GT2 class, 3 podiums) 3rd 24h Nürburgring (overall classification) GrandAm Series Championship (GT class, 1 podium) |
| 2008 | Porsche Works Driver 1st Position American Le Mans Series Championship (GT2 class, win at 12h Sebring) |
| 2007 | 3rd Position American Le Mans Series Championship (GT2 class , 6 podiums)
GrandAm Series Championship (GT class, 2 podiums) |
| 2006 | “Porsche Cup” Award Winner
2nd Position GrandAm Series Championship (GT class, 5 wins, 6 podiums) 4th Position American Le Mans Series Championship (GT2 class, 1 win in Mid-Ohio, 4 podiums) |
| 2005 | 4th Position Speed World Challenge (GT class, 2 wins)
4th Position American Le Mans Series Championship (GT2 class) 1st Position 24h Daytona (GT class, pole setter) |
| 2004 | 1st Position Porsche Michelin Supercup Championship (9 wins)
2nd Position Porsche Carrera Cup Deutschland Championship (3 wins) 2nd Petit Le Mans, Road Atlanta (GT class), debut American Le Mans Series Speed World Challenge (GT class, 2 wins in 2 races) |
| 2003 | 2nd Position Porsche Michelin Supercup Championship (3 wins)
4th Position Porsche Carrera Cup Deutschland Championship (1 win) |
| 2002 | 4th Position Porsche Michelin Supercup Championship (3 wins)
Porsche Carrera Cup Deutschland Championship 6th |
| 2001 | 6th Position Porsche Pirelli Supercup Championship |
| 2000 | 8th Position Porsche Pirelli Supercup Championship |
| 1999 | FIA Formula 3000 Championship |
| 1998 | 3rd Position German Formula 3 Championship (2 wins) |
| 1997 | 4th Position German Formula 3 Championship (2 wins)
2nd Position Formula 3 Monaco Grand Prix |
| 1996 | German Formula 3 Championship |
| 1995 | 3rd Position German Formula 3 Championship Class B (5 wins) |
| 1994 | 5th Position German Opel Championship (2 wins) |
| 1993 | 4th Position German Formula BMW Championship (2 wins) |
| 1992 | German Formula BMW Championship “Rookie of the Year” |
| 1991 | 1st Position German Junior Kart Championship |
| 1990 | 3rd Position Southern Junior Kart Championship |