| 25.1.2005 | Mil Milhas Brasileiras | 9 | TT DTM | Negrão / Negrão / Negrão / Losacco | Medley Sports | 1st |
| 25.1.2005 | Mil Milhas Brasileiras | 19 | S3 Turbo | Podboi / Moreira Neto / Pinheiro / Bianchini | | 58th |
| 25.1.2005 | Mil Milhas Brasileiras | 80 | A3 | Carlos Eduardo Quirino | Kira Racing | DNA |
| 3.2.2005 | Sebring Test | 1 | R8 | Kristensen / Werner / Lehto | ADT/Champion Racing | 1st |
| 3.2.2005 | Sebring Test | 2 | R8 | Pirro / McNish / Biela | ADT/Champion Racing | 2nd |
| 19.3.2005 | 12 h Sebring | 1 | R8 | Lehto / Werner / Kristensen | ADT/Champion Racing | 1st |
| 19.3.2005 | 12 h Sebring | 2 | R8 | Pirro / Biela / McNish | ADT/Champion Racing | 2nd |
| 27.3.2005 | Belcar Zolder NRF | 10 | TT | Mattheus / Redant | TT Racing | NC |
| 2.4.2005 | LMS Test Paul Ricard | 4 | R8 | Ortelli / Gounon | Audi PlayStation Team Oreca | 7th |
| 17.4.2005 | 2 h 45 min Road Atlanta | 1 | R8 | Lehto / Werner | ADT Champion Racing | 1st |
| 17.4.2005 | 2 h 45 min Road Atlanta | 2 | R8 | Biela / Pirro | ADT Champion Racing | 3rd |
| 17.4.2005 | 1000 km Spa | 4 | R8 | Ortelli / Gounon | Audi Playstation Oreca | DNF |
| 17.4.2005 | Belcar Spa 1000 km | 10 | TT | Mattheus / Redant | TT Racing | DNS/33rd |
| 17.4.2005 | Spanish GT Jarama | 43 | TT | Giorgio Vergara | Club Jarama Race | 25th/25th |
| 8.5.2005 | 24 h Nürburgring | 12 | V8 | Derichs / Kubik / Sedlmaier / Nilsson | Derichs Rennwagen e.V. | 73rd |
| 8.5.2005 | 24 h Nürburgring | 14 | RS4 | Bleck / Englerth / Ketterer / Tenchini | Götz Motorsport | DNF |
| 8.5.2005 | 24 h Nürburgring | 15 | ASR Abt | Terting / Schmickler / Brandl / Ihle | Motorsportclub Stuttgart | DNF |
| 8.5.2005 | 24 h Nürburgring | 17 | RS4 R | Fisch / Duffner / Vollmer / Überall | MSRT Frelamt | DNF |
| 8.5.2005 | 24 h Nürburgring | 60 | 200 quattro | Kohlhaas / Riebensahm / Gerhard | | DNF |
| 8.5.2005 | 24 h Nürburgring | 71 | A3 | Kühlewein / Waschkau / Speich | S: König Komfort- und Rennsitze | DNF |
| 8.5.2005 | 24 h Nürburgring | 79 | A3 Turbo | Rohr / Ludwig / Zehe / Bauer | | DNF |
| 8.5.2005 | 24 h Nürburgring | 83 | A3 | Kroher / Kinzer / Wippersteg / Gass | Jörg van Ommen Autosport S: Pirelli Competitioni | DNS |
| 8.5.2005 | 24 h Nürburgring | 84 | A3 | Oberndorfer / Möller-Sonntag / Unger / Schrick | Jörg van Ommen Autosport S: Pirelli Competitioni | DNS |
| 8.5.2005 | 24 h Nürburgring | 85 | A3 | Fiocchi / Hofmayer / Küster / Mota | Jörg van Ommen Autosport | 52nd |
| 8.5.2005 | 24 h Nürburgring | 106 | TT 8N | Engels / Zils / Tschümpelin / Beil | | 111th |
| 8.5.2005 | 24 h Nürburgring | 121 | A4 quattro | Schjärin / Sandberg / Gulbrandsen | MSC Ruhr-Blitz Bochum e.V. im ADAC | DNF |
| 8.5.2005 | 24 h Nürburgring | 256 | TT LPG | Hallgren / Marx / Clepkens | | DNF |
| 15.5.2005 | Interserie Nürburgring | 13 | A4 Turbo | Noll / Hasenbichler | Rüdiger Noll | 1st |
| 15.5.2005 | Spanish GT Valencia | 43 | TT | Giorgio Vergara | Club Jarama Race | 24th/23rd |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 1 | R8 | Lehto / Werner | ADT Champion Racing | 18th |
| 22.5.2005 | 2 h 45 min Mid-Ohio | 2 | R8 | Pirro / Biela | ADT Champion Racing | 3rd |
| 5.6.2005 | Le Mans Test | 2 | R8 | Biela / Pirro | Champion Racing | 8th |
| 5.6.2005 | Le Mans Test | 3 | R8 | Lehto / Werner | Champion Racing | 4th |
| 5.6.2005 | Le Mans Test | 4 | R8 | Ortelli / Montagny / Gounon | Audi PlayStation Team Oreca | 7th |
| 11.6.2005 | Belcar Spa SER | 10 | TT | Mattheus / Redant | TT Racing | DNF |
| 19.6.2005 | 24 h Le Mans | 2 | R8 | Pirro / McNish / Biela | Champion Racing | 3rd |
| 19.6.2005 | 24 h Le Mans | 3 | R8 | Lehto / Kristensen / Werner | Champion Racing | 1st |
| 19.6.2005 | 24 h Le Mans | 4 | R8 | Montagny / Ortelli / Gounon | Audi Playstation Oreca | 4th |
| 26.6.2005 | Belcar Brands Hatch | 10 | TT | Mattheus / Redant | TT Racing | 25th |
| 26.6.2005 | Spanish GT Estoril | 43 | TT | Vergara / Martinez Campos | Club Jarama Race | 21st/NC |
| 4.7.2005 | 2 h 45 min Lime Rock | 1 | R8 | Lehto / Werner | ADT Champion Racing | 1st |
| 4.7.2005 | 2 h 45 min Lime Rock | 2 | R8 | Biela / Pirro | ADT Champion Racing | 2nd |
| 10.7.2005 | 1000 km Monza | 4 | R8 | Ortelli / Gounon | Audi Playstation Team Oreca | DNA |
| 17.7.2005 | 2 h 45 min Sonoma | 1 | R8 | Lehto / Werner | ADT Champion Racing | 3rd |
| 17.7.2005 | 2 h 45 min Sonoma | 2 | R8 | Pirro / Biela | ADT Champion Racing | 1st |
| 30.7.2005 | 2 h 45 min Portland | 1 | R8 | Lehto / Werner | ADT Champion Racing | 23rd |
| 30.7.2005 | 2 h 45 min Portland | 2 | R8 | Biela / Pirro | ADT Champion Racing | 1st |
| 13.8.2005 | 1000 km Silverstone | 4 | R8 | McNish / Ortelli | Audi Playstation Team Oreca | 1st |
| 21.8.2005 | 2 h 45 min Road America | 1 | R8 | Lehto / Werner | ADT Champion Racing | 3rd |
| 21.8.2005 | 2 h 45 min Road America | 2 | R8 | Pirro / Biela | ADT Champion Racing | 1st |
| 28.8.2005 | 24 h Zolder | 10 | TT | Mattheus / Loix / Lohr | TT Racing | NC |
| 4.9.2005 | 2 h 30 min Mosport | 1 | R8 | Lehto / Werner | ADT Champion Racing | 2nd |
| 4.9.2005 | 2 h 30 min Mosport | 2 | R8 | Pirro / Biela | ADT Champion Racing | 3rd |
| 4.9.2005 | 1000 km Nürburgring | 4 | R8 | McNish / Ortelli | Audi PlayStation Team Oreca | 2nd |
| 18.9.2005 | Spanish GT Albacete | 43 | TT | Giorgio Vergara | Club Jarama Race | 23rd/20th |
| 1.10.2005 | Petit Le Mans | 1 | R8 | Lehto / Werner | ADT Champion Racing | 7th |
| 1.10.2005 | Petit Le Mans | 2 | R8 | Pirro / Biela | ADT Champion Racing | 1st |
| 2.10.2005 | Belcar Spa RF | 10 | TT | Mattheus / Jacobs | TT Racing | 18th |
| 16.10.2005 | 4 h Laguna Seca | 1 | R8 | Lehto / Werner | ADT Champion Racing | 4th |
| 16.10.2005 | 4 h Laguna Seca | 2 | R8 | Biela / Pirro | ADT Champion Racing | 2nd |
| 16.10.2005 | Spanish GT Jerez | 43 | TT | Giorgio Vergara | Club Jarama Race | 27th/28th |
| 23.10.2005 | Belcar Zolder BM | 10 | TT | Mattheus / Lohr | TT Racing | NC |
| 23.10.2005 | Belcar Zolder BM | 79 | | Noll / Hasenbichler | Rüdiger Noll | DNA |
| 13.11.2005 | 1000 km Istanbul | 4 | R8 | McNish / Ortelli | Audi Playstation Oreca | 2nd |