2014: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 44th, 16 races;
Le Mans Classic - Plateau 5, Lola T70 Mk. III Coupé (Chevrolet) - 12th, 3 races;
2013: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 25th, 16 races, 1 podium;
2012: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 28th, 16 races;
2011: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 38th, 16 races,
2010: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 14th, 13 races, 3 podiums;
FIA GT3 European Championship, Toni Seiler Racing, Chevrolet Corvette Z06.R GT3 - 11th, 8 races, 2 podiums;
2009: ADAC GT Masters, Callaway Competition, Chevrolet Corvette Z06.R GT3 - 4th, 14 races, 1 win, 4 podiums;
2008: ADAC GT Masters, Toni Seiler Racing, Chevrolet Corvette - 13th, 14 races;
2007: ADAC GT Masters, Callaway Competition, Chevrolet Corvette - 6th, 4 races, 1 win, 4 podiums;
FIA GT3 European Championship, BMS Scuderia Italia, Aston Martin DBRS9 - 15th, 5 races;
2006: FIA GT3 European Championship, BMS Scuderia Italia, Aston Martin DBRS9 - 5th, 9 races, 3 podiums;
2005: 24h Le Mans - GT1, BMS Scuderia Italia, Ferrari 550 Maranello - retired;
Le Mans Series - LMGT1, BMS Scuderia Italia, Ferrari 550 Maranello - 1st, 5 races, 2 wins, 4 podiums;
Grand American Rolex Series - GT - 105th, 1 race;
Grand-Am Cup ST, Chevrolet Cobalt SS - 79th;
2004: FIA GT, Konrad Motorsport, Saleen S7R - 37th, 10 races;
2003: 24h Le Mans - GTS, Konrad Motorsport, Saleen S7R - retired;
FIA GT, Konrad Motorsport, Saleen S7R - 16th, 9 races, 1 podium;
American Le Mans Series - GTS, Konrad Motorsport, Saleen S7R - 1 race;
Grand American Rolex Series - GTS, Konrad Motorsport, Saleen S7R - 1 race;
2002: 24h Le Mans - GTS, Konrad Motorsport, Saleen S7R - 7th;
American Le Mans Series - GTS, Konrad Motorsport, Saleen S7R - 16th, 3 races, 1 podium;
Grand American Rolex Series - GTS, Konrad Motorsport, Saleen S7R - 1 race, 1 podium;
2001: 24h Le Mans - GTS, Konrad Motorsport, Saleen S7R - retired;
American Le Mans Series - GTS, Konrad Motorsport, Saleen S7R - 25th, 2 races, 1 win,
Grand American Rolex Series - Sportsracing Prototypes 2, Pilbeam Racing America, Pilbeam MP84 (Nissan) - 1 race;
FIA GT - NGT, Freisinger Motorsport, Porsche 911 GT3 R - 25th, 1 race;
2000: 24h Le Mans - GTS, Team Goh / Chamberlain Engineering, Chrysler Viper GTS-R - retired;
American Le Mans Series - GTS, Chamberlain Motorsport, Chrysler Viper GTS-R - 42nd, 1 race;
FIA GT, Chamberlain Motorsport, Chrysler Viper GTS-R - 24th, 5 races;
1999: 24h Le Mans - GTS, Hugh Chamberlain Engineering, Chrysler Viper GTS-R - 3rd;
FIA GT, Chamberlain Motorsport, Chrysler Viper GTS-R - 12th, 5 races, 2 podiums;
1998: 24h Le Mans - GT2, Konrad Motorsport, Porsche 911 GT2 - retired;
FIA GT - GT2, Konrad Motorsport, Porsche 911 GT2 - 27th, 8 races;
1997: 24h Le Mans - GT2, Konrad Motorsport, Porsche 911 GT2 - retired;
FIA GT - GT2, Konrad Motorsport, Porsche 911 GT2 - 16th, 10 races, 1 podium;
1996: 24h Le Mans - GT2, Elf Haberthur Racing, Porsche 911 GT2 - retired;
Global GT Championship, Konrad Motorsport, Porsche 911 GT2 - 51st, 7 races;
1995: Global GT Championship, Konrad Motorsport, Porsche 911 GT2 &Porsche 911 biturbo - 22nd, 4 races;
1993: Porsche Supercup, Porsche Carrera - 14th;
1992: Porsche Carrera Cup Germany, Porsche Carrera 2;

