| 20.9.2008 | 1000 km Miller | 27 | 997 GT3 Cup | O'Connell / Roush | O'Connell Racing | 31st |
| 20.9.2008 | 1000 km Miller | 67 | 997 GT3 Cup | Lally / Long / George, Jr. | TRG | 14th |
| 20.9.2008 | 1000 km Miller | 86 | 997 GT3 Cup | Lux / Keen / Farnbacher | Farnbacher Loles Racing | 25th |
| 20.9.2008 | 1000 km Miller | 88 | 997 GT3 Cup | Lacey / Farnbacher / Henzler | Farnbacher Loles Racing | 20th |
| 21.9.2008 | GT Open Magny-Cours | 1 | 997 GT3 RSR | Lietz / Roda | Autorlando | 5th/1st |
| 21.9.2008 | Belcar Spa Francorchampagne | 1 | 997 GT3 Cup S | Franchi / Soulet | GPR Pino Racing | 6th |
| 21.9.2008 | GT Open Magny-Cours | 2 | 997 GT3 RSR | Zonca / Belicchi | Autorlando | 6th/2nd |
| 21.9.2008 | Britcar 24 h Silverstone | 6 | 997 GT3 RSR | Sumpter / Slater / Purdie | Paragon Motorsport | 1st |
| 21.9.2008 | Britcar 24 h Silverstone | 8 | 997 GT3 Cup | Jones / Jones / Jones / Jones / Jones | Eurotech Motorsport | DNF |
| 21.9.2008 | GT Open Magny-Cours | 9 | 997 GT3 RSR | Miguel Ángel de Castro / Antonio Chacón | Detector Drivex Porsche | 22nd/6th |
| 21.9.2008 | Belcar Spa Francorchampagne | 11 | 997 GT3 Cup S | Couwberghs / Maes | NGT Racing | 2nd |
| 21.9.2008 | ADAC GT Sachsenring | 14 | 997 GT3 Cup S | Bleekemolen / Bleekemolen | Mühlner Motorsport | 4th/7th |
| 21.9.2008 | ADAC GT Sachsenring | 15 | 997 GT3 Cup S | Bergmeister / Bergmeister | Mühlner Motorsport | 6th/6th |
| 21.9.2008 | ADAC GT Sachsenring | 16 | 997 GT3 Cup S | Van De Laar / Bleekemolen | Mühlner Motorsport | DNF/12th |
| 21.9.2008 | GT Open Magny-Cours | 22 | 996 GT3-RSR | Caffi / Fratti | Autorlando | 11th/9th |
| 21.9.2008 | GT Open Magny-Cours | 25 | 996 GT3-RSR | Monteiro / Monteiro | Estoril Racing | 14th/DNF |
| 21.9.2008 | ADAC GT Sachsenring | 27 | 997 GT3 Cup | Langen / Melkus | Buchbinder Racing by emotional engineering | 11th/DNF |
| 21.9.2008 | Britcar 24 h Silverstone | 30 | 996 GT3 Cup | Lockie / White / Scott / Harris | Strata UK Ltd | 30th |
| 21.9.2008 | ADAC GT Sachsenring | 39 | 997 GT3 Cup | Dragoun / Zoltan | G-Private-Racing | 15th/16th |
| 21.9.2008 | ADAC GT Sachsenring | 40 | 997 GT3 Cup S | Zeltner / Peham | G-Private-Racing | 8th/11th |
| 21.9.2008 | Britcar 24 h Silverstone | 64 | 968 | Garrod / Ballentyne / Radford / Erceg | Country Classics / with BBG Racing | 31st |
| 21.9.2008 | Belcar Spa Francorchampagne | 123 | 996 GT3 Cup | van Oost / Maes | Powercars Racing | DNF |
| 21.9.2008 | Belcar Spa Francorchampagne | 217 | 996 Bi-Turbo GT2-R | Bouillon / Voets | McDonald's Racing | DNF |
| 21.9.2008 | Belcar Spa Francorchampagne | 250 | 997 GT3 Cup | Lagrange / Nelissen-Grade | First Motorsport | 12th |
| 21.9.2008 | Belcar Spa Francorchampagne | 259 | 997 GT3 Cup | Vanhanen / Nurminen | Westend Racing | 14th |
| 21.9.2008 | Belcar Spa Francorchampagne | 264 | 997 GT3 Cup | van Hover / Langeberg | Speedlover | NC |
| 28.9.2008 | Spanish GT Valencia | 9 | 997 GT3 RSR | Amaral / de Castro | Detector Drivex Porsche | 3rd/4th |
| 28.9.2008 | Spanish GT Valencia | 33 | 997 GT3 RSR | del Noce / Bastos | ASM Team | 7th/DNF |
| 28.9.2008 | Spanish GT Valencia | 35 | 997 GT3 Cup | Gellweiler / Peres | Detector Drivex Porsche | 10th/9th |
| 4.10.2008 | Petit Le Mans | 5 | RS Spyder Evo | Briscoe / Castroneves | Penske Motorsports, Inc. | 4th |
| 4.10.2008 | Petit Le Mans | 6 | RS Spyder Evo | Collard / Maassen / Long | Penske Racing | 6th |
| 4.10.2008 | Petit Le Mans | 7 | RS Spyder Evo | Bernhard / Dumas | Penske Racing | 5th |
| 4.10.2008 | Petit Le Mans | 16 | RS Spyder Evo | Dyson / Smith | Dyson Racing Team | 9th |
| 4.10.2008 | Petit Le Mans | 18 | 997 GT3 RSR | Pastorelli / Basseng / Pastorelli | VICI Racing | 23rd |
| 4.10.2008 | Petit Le Mans | 20 | RS Spyder Evo | Leitzinger / Franchitti / Lally | Dyson Racing Team | 7th |
| 4.10.2008 | Petit Le Mans | 44 | 997 GT3 RSR | Law / Pechnik / Neiman | Flying Lizard Motorsports 44 | 19th |
| 4.10.2008 | Petit Le Mans | 45 | 997 GT3 RSR | Bergmeister / Henzler / Lieb | Flying Lizard Motorsports | 13th |
| 4.10.2008 | Petit Le Mans | 46 | 997 GT3 RSR | Pilet / van Overbeek | Flying Lizard Motorsports | 21st |
| 4.10.2008 | Petit Le Mans | 87 | 997 GT3 RSR | Werner / Miller / Hardt | Farnbacher Loles Racing | 28th |
| 5.10.2008 | GT Open Monza | 1 | 997 GT3 RSR | Lietz / Roda | Autorlando | 8th/1st |
| 5.10.2008 | GT Open Monza | 2 | 997 GT3 RSR | Zonca / Belicchi | Autorlando | 6th/DNF |
| 5.10.2008 | FIA GT3 Nogaro | 6 | 997 GT3 Cup S | Williams / Ashburn | Trackspeed | 23rd/8th |
| 5.10.2008 | FIA GT3 Nogaro | 7 | 997 GT3 Cup S | Nuttal / Shelley | Trackspeed | DNF/28th |
| 5.10.2008 | GT Open Monza | 9 | 997 GT3 RSR | Miguel Ángel de Castro / Antonio Chacón | Detector Drivex Porsche | 5th/7th |
| 5.10.2008 | FIA GT3 Nogaro | 35 | 997 GT3 Cup S | Penders / Lamot | Prospeed Competition | 22nd/16th |
| 5.10.2008 | FIA GT3 Nogaro | 36 | 997 GT3 Cup S | Loix / Lémeret | Prospeed Competition | 7th/13th |
| 5.10.2008 | GT Open Monza | 37 | 997 GT3 RSR | Edwards / Moro | Hisaq Competition | 14th/DNF |
| 5.10.2008 | GT Open Monza | 39 | 997 GT3 RSR | Petrobelli / Ricci | Konrad Motorsport | DNF/DNF |
| 5.10.2008 | FIA GT3 Nogaro | 39 | 997 GT3 Cup S | Thomas / Hemroulle | Muehlner Motorsport | 14th/DNF |
| 5.10.2008 | FIA GT3 Nogaro | 40 | 997 GT3 Cup S | Vosse / Jiřík | Muehlner Motorsport | 11th/5th |
| 5.10.2008 | 2 h Nogaro | 59 | 997 GT3 RSR | Williams / Ashburn | Trackspeed Racing | 21st |
| 5.10.2008 | 2 h Nogaro | 60 | 997 GT3 RSR | Forsten / Palttala | Prospeed Competition | DNF |
| 5.10.2008 | 2 h Nogaro | 61 | 997 GT3 RSR | Davison / Westbrook | Prospeed Competition | 9th |
| 12.10.2008 | Brasil GT3 Santa Cruz | 5 | 997 GT3 Cup | Brito / Gresse | WB Motorsports | DNS/2nd |
| 12.10.2008 | Brasil GT3 Santa Cruz | 6 | 997 GT3 Cup | Fittipaldi / Hermann | WB Motorsports | 9th/8th |
| 12.10.2008 | FFSA GT Magny-Cours | 35 | 996 GT3-RSR | Loger / Mouez | Nourry Compétition | 29th/25th |
| 12.10.2008 | FFSA GT Magny-Cours | 36 | 997 GT3 RSR | Lelièvre / Polette | IMSA Performance | 21st/26th |
| 12.10.2008 | FFSA GT Magny-Cours | 37 | 996 GT3-RSR | Monteiro / Monteiro | Estoril Racing | 20th/22nd |
| 12.10.2008 | FFSA GT Magny-Cours | 39 | 997 GT3 RSR | Lecourt / Dumez | IMSA Performance | 10th/14th |
| 12.10.2008 | FFSA GT Magny-Cours | 40 | 997 GT3 RSR | Balandras / Narac | IMSA Performance | 9th/10th |
| 18.10.2008 | 4 h Laguna Seca | 5 | RS Spyder Evo | Briscoe / Castroneves | Penske Motorsports, Inc. | 6th |
| 18.10.2008 | 4 h Laguna Seca | 6 | RS Spyder Evo | Maassen / Long | Penske Racing | 10th |
| 18.10.2008 | 4 h Laguna Seca | 7 | RS Spyder Evo | Bernhard / Dumas | Penske Racing | 5th |
| 18.10.2008 | 4 h Laguna Seca | 16 | RS Spyder Evo | Dyson / Smith | Dyson Racing Team | 7th |
| 18.10.2008 | 4 h Laguna Seca | 18 | 997 GT3 RSR | Pastorelli | VICI Racing | 33rd |
| 18.10.2008 | 4 h Laguna Seca | 20 | RS Spyder Evo | Leitzinger / Franchitti | Dyson Racing Team | 8th |
| 18.10.2008 | 4 h Laguna Seca | 44 | 997 GT3 RSR | Law / Neiman | Flying Lizard Motorsports 44 | 20th |
| 18.10.2008 | 4 h Laguna Seca | 45 | 997 GT3 RSR | Bergmeister / Henzler | Flying Lizard Motorsports | 24th |
| 18.10.2008 | 4 h Laguna Seca | 46 | 997 GT3 RSR | Pilet / van Overbeek | Flying Lizard Motorsports | 19th |
| 18.10.2008 | 4 h Laguna Seca | 87 | 997 GT3 RSR | Werner / Miller | Farnbacher Loles Racing | DQ |
| 19.10.2008 | Belcar Zolder FIA GT | 1 | 997 GT3 Cup S | Franchi / Soulet | GPR Pino Racing | 3rd/19th |
| 19.10.2008 | Spanish GT Jerez | 9 | 997 GT3 RSR | Amaral / de Castro | Detector Drivex Porsche | 2nd/2nd |
| 19.10.2008 | Belcar Zolder FIA GT | 11 | 997 GT3 Cup S | Couwberghs / Maes | NGT Racing | 4th/17th |
| 19.10.2008 | Italian GT Vallelunga | 12 | 997 GT3 RSR | Richard Lietz / Francisco Cruz Martins | Autorlando Sport | 1st/DNF |
| 19.10.2008 | Italian GT Vallelunga | 14 | 997 GT3 RSR | Davison / Proietti | Autorlando Sport | 7th/8th |
| 19.10.2008 | 300 km Autopolis | 26 | 996 GT3-RS | Taniguchi / Yamaji | Team Taisan With Nishizawa | 30th |
| 19.10.2008 | Spanish GT Jerez | 33 | 997 GT3 RSR | del Noce / Bastos | ASM Team | DNF/6th |
| 19.10.2008 | 300 km Autopolis | 33 | 997 GT3 RSR | Kageyama / Kinoshita | Hankook KTR | 20th |
| 19.10.2008 | Spanish GT Jerez | 35 | 997 GT3 Cup | Gellweiler / Peres | Detector Drivex Porsche | DNF/DNF |
| 19.10.2008 | 2 h Zolder | 60 | 997 GT3 RSR | Lieb / Palttala | Prospeed Competition | 11th |
| 19.10.2008 | 2 h Zolder | 61 | 997 GT3 RSR | Westbrook / Collard | Prospeed Competition | 12th |
| 19.10.2008 | Italian GT Vallelunga | 103 | 997 GT3 Cup | Cappelletti / della Volta | Promospeed | 18th/20th |
| 19.10.2008 | Italian GT Vallelunga | 105 | 997 GT3 Cup | Petrini / Scilla | AGR Motorsport | 28th/17th |
| 19.10.2008 | Italian GT Vallelunga | 107 | 997 GT3 Cup | Orsero / Campanello | Happy Racer | 23rd/23rd |
| 19.10.2008 | 300 km Autopolis | 110 | Boxster 986 | Mitsusada / Ikeda | Arktech Motorsports | 28th |
| 19.10.2008 | 300 km Autopolis | 111 | Boxster 986 | Kurosawa / Koizumi | Arktech Motorsports | DNF |
| 19.10.2008 | Italian GT Vallelunga | 111 | 997 GT3 Cup | Bellini / de Nora | Bonaldi Tech | 26th/19th |
| 19.10.2008 | Italian GT Vallelunga | 112 | 997 GT3 Cup | Sala / Sada | Autorlando Sport | 21st/22nd |
| 19.10.2008 | 300 km Autopolis | 118 | 996 GT3-RS | Miyamoto / Jounai | Tomei Sports | 32nd |
| 19.10.2008 | Belcar Zolder FIA GT | 123 | 996 GT3 Cup | van Oost / Jonckheere | Powercars Racing | 17th/18th |
| 19.10.2008 | Italian GT Vallelunga | 124 | 996 GT3 Cup | Urbani / Bocellari | AGR Motorsport | 29th/25th |
| 19.10.2008 | Italian GT Vallelunga | 127 | 997 GT3 Cup | Balzan / Brambati | AB Motorsport/Antonelli Motorsport | 17th/DNF |
| 19.10.2008 | Belcar Zolder FIA GT | 160 | 996 GT3 Cup | Schulz / Schulz | Lammertink Racing Team | DNS |
| 19.10.2008 | Belcar Zolder FIA GT | 222 | 996 Bi-Turbo GT2-R | Bouillon / Voets | McDonald's Racing | 21st/14th |
| 19.10.2008 | Belcar Zolder FIA GT | 250 | 997 GT3 Cup | Nelissen-Grade / Lagrange | First Motorsport | 16th/21st |
| 19.10.2008 | Belcar Zolder FIA GT | 259 | 997 GT3 Cup | Vanhanen / Nurminen | Westend Racing | 13th/13th |
| 19.10.2008 | Belcar Zolder FIA GT | 264 | 997 GT3 Cup | van Hover / Langeberg | Speedlover | 18th/11th |
| 19.10.2008 | Belcar Zolder FIA GT | 360 | 997 GT3 Cup | Schulz / Schulz | Lammertink Racing Team | DNF/DNS |
| 29.10.2008 | Daytona October Test | 14 | 997 GT3 Cup | Baldwin / Burtin | Autometrics Motorsports | raced |
| 29.10.2008 | Daytona October Test | 18 | 997 GT3 Cup | Ledoux / Quinlan / Watkins | 6th Gear Racing Inc. | raced |