| 15.3.2008 | 12 h Sebring | 5 | 997 GT3 RSR | Stanton / Swartzbaugh / Alzen | VICI Racing | 19th |
| 15.3.2008 | 12 h Sebring | 6 | RS Spyder Evo | Maassen | Penske Racing | 31st |
| 15.3.2008 | 12 h Sebring | 7 | RS Spyder Evo | Bernhard / Dumas / Collard | Penske Racing | 1st |
| 15.3.2008 | 12 h Sebring | 16 | RS Spyder Evo | Dyson / Smith | Dyson Racing Team | 4th |
| 15.3.2008 | 12 h Sebring | 27 | RS Spyder Evo | Lammers / Lienhard / Theys | Horag Racing | 7th |
| 15.3.2008 | 12 h Sebring | 44 | 997 GT3 RSR | Davison / Law / Neiman | Flying Lizard Motorsports 44 | 13th |
| 15.3.2008 | 12 h Sebring | 45 | 997 GT3 RSR | Henzler / Bergmeister / Lieb | Flying Lizard Motorsports | 12th |
| 15.3.2008 | 12 h Sebring | 77 | 996 GT3-RS | Konôpka / Casadei / Hornak | Autoracing Club Bratislava | 25th |
| 15.3.2008 | 12 h Sebring | 87 | 997 GT3 RSR | Werner / Basseng / Miller | Farnbacher Loles | 27th |
| 16.3.2008 | Australian GT Albert Park | 5 | 911 GT3 Cup | Simon Froude | Superplus Racing | 16th/19th/15th/DNS |
| 16.3.2008 | Australian GT Albert Park | 8 | 996 GT3-RSR | Simon Middleton | Flash Air/Daikin Air | 14th/14th/19th/12th |
| 16.3.2008 | Australian GT Albert Park | 9 | 996 GT3 Cup | Michael Loccisano | Hallmarc Developments | 11th/6th/8th/9th |
| 16.3.2008 | Australian GT Albert Park | 10 | 996 GT3 Cup | Mark Krashos | Glenelg East Pharmacy | DNF/15th/DNF/15th |
| 16.3.2008 | Australian GT Albert Park | 11 | 996 GT3 Cup | Dean Grant | GV Hotel Shepparton | 10th/10th/9th/8th |
| 16.3.2008 | 300 km Suzuka | 26 | 996 GT3-RS | Taniguchi / Yamaji | Team Taisan With Nishizawa | 16th |
| 16.3.2008 | 300 km Suzuka | 27 | 996 GT3-RSR | Inoue / Jin-Woo | Team Shadow | 32nd |
| 16.3.2008 | Australian GT Albert Park | 31 | 911 GT3 Cup | Jon Trende | Cooks Construction | DNS |
| 16.3.2008 | Australian GT Albert Park | 33 | 996 GT3 Cup | Fraser Kirchner | Kirchner Constructions | DNF/20th/14th/18th |
| 16.3.2008 | 300 km Suzuka | 33 | 997 GT3 RSR | Kinoshita / Kageyama | Hankook KTR | 25th |
| 16.3.2008 | Australian GT Albert Park | 36 | 996 GT3 Cup | Peter Fountas | Ultra Finish Group/Jaylec | 17th/21st/17th/19th |
| 16.3.2008 | Australian GT Albert Park | 38 | 996 GT3-RSR | Des Wall | RDS Wall Racing/World of Learn | 7th/9th/5th/6th |
| 16.3.2008 | 300 km Suzuka | 70 | 996 GT3-RS | Yamagishi / Maeda | Team Gaikokuya | 34th |
| 16.3.2008 | Australian GT Albert Park | 73 | 996 GT3 Cup | Michael Lentini | Lentini Dental | 13th/13th/13th/DNF |
| 16.3.2008 | Australian GT Albert Park | 75 | 996 GT3 Cup | Jeff Bobik | Creative Colour | DNF/DNS/DNS/DNS |
| 16.3.2008 | Australian GT Albert Park | 77 | 996 GT3 Cup | Anthony Kosseris | Oxford Tavern Wollongong | 9th/11th/10th/DNF |
| 16.3.2008 | Australian GT Albert Park | 90 | 996 GT3 Cup | Sven Burchartz | MacPherson & Kelly Lawyers | 8th/5th/20th/11th |
| 16.3.2008 | 300 km Suzuka | 110 | Boxster 986 | Ikeda / Mitsusada | Arktech Motorsports | 23rd |
| 16.3.2008 | 300 km Suzuka | 111 | Boxster 986 | Jounai / Koizumi | Arktech Motorsports | 29th |
| 16.3.2008 | 300 km Suzuka | 118 | 996 GT3-RS | Ooi / Miyamoto | Tomei Sports | 33rd |
| 22.3.2008 | Britcar Silverstone | 5 | 935 GT3 | Ticehurst / Chamberlain | Chimp Tune Racing | DNF |
| 22.3.2008 | Britcar Silverstone | 8 | 997 GT3 | Gaw / Dryburgh | Team Kinfaun | 3rd |
| 22.3.2008 | Britcar Silverstone | 9 | 996 GT3-RSR | Harrison / Bussel | Team Eurotech | 18th |
| 22.3.2008 | Britcar Silverstone | 10 | 997 GT3 Cup | Collis / Mason | TJH Motorsport | 5th |
| 22.3.2008 | Britcar Silverstone | 14? | | Graeme Mundy | RSS Porsche | DNA |
| 22.3.2008 | Britcar Silverstone | 27 | 911 GT3 Cup | Firman / Morris | Jaz Motorsport | 11th |
| 22.3.2008 | Britcar Silverstone | 38 | 996 GT4 | Barrett / Persson | Hawthorns Motorsport | 4th |
| 22.3.2008 | Britcar Silverstone | 46 | 996 GT3 Cup | Masarati / Wright | Driver | 13th |
| 22.3.2008 | Britcar Silverstone | 47 | 996 GT3-R | Heintzelman / Aitken | Geoff Steel Racing | 23rd |
| 22.3.2008 | Britcar Silverstone | 50 | 911 GT3 Cup | Evans / Roberts | XL Race Parts | DNS |
| 24.3.2008 | British GT Oulton Park | 5 | 997 GT3 Cup S | Williams / Ashburn | Trackspeed | 4th/19th |
| 24.3.2008 | FFSA GT Nogaro | 34 | 997 GT3 RSR | Champeau / Blugeon | Pro GT | 30th/31st |
| 24.3.2008 | FFSA GT Nogaro | 35 | 996 GT3-RSR | Loger / Mouez | Nourry Compétition | 18th/20th |
| 24.3.2008 | FFSA GT Nogaro | 36 | 996 GT3-RSR | Michel Nourry | Nourry Compétition | DNS |
| 24.3.2008 | FFSA GT Nogaro | 37 | 996 GT3-RSR | Monteiro / Monteiro | Estoril Racing | 23rd/25th |
| 24.3.2008 | FFSA GT Nogaro | 40 | 996 GT3-RSR | Philippon / Labescat | Espace Racing | 24th/26th |
| 24.3.2008 | FFSA GT Nogaro | 49 | 997 GT3 Cup | Baron / Fournet | RMS Emeraude Racing | DNA |
| 24.3.2008 | FFSA GT Nogaro | 50 | 997 GT3 Cup | Guilvert / Stépec | RMS Emeraude Racing | 14th/28th |
| 24.3.2008 | FFSA GT Nogaro | 63 | 997 GT3 Cup | Polette / Lelièvre | IMSA | 22nd/17th |
| 24.3.2008 | FFSA GT Nogaro | 67 | 997 GT3 Cup | Pont / Bachelier | GCR | 26th/21st |
| 24.3.2008 | FFSA GT Nogaro | 80 | 997 GT3 Cup | Toulemonde / Brière | Pro GT | DNF/DNS |
| 24.3.2008 | FFSA GT Nogaro | 81 | 997 GT3 Cup | Philippe Alméras | Pro GT | DNA |
| 27.3.2008 | Zolder Belcar Test | 1 | 997 GT3 Cup S | Maxime Soulet | GPR Pino Racing | raced |
| 27.3.2008 | Super GT Test Fuji | 26 | 996 GT3-RS | Taniguchi / Yamaji | Team Taisan With Nishizawa | 19th |
| 27.3.2008 | Super GT Test Fuji | 110 | Boxster 986 | Mitsusada / Ikeda | Arktech Motorsports | 27th |
| 27.3.2008 | Super GT Test Fuji | 118 | 996 GT3-RS | Miyamoto / Ooi | Tomei Sports | 30th |
| 27.3.2008 | Zolder Belcar Test | - | 997 GT3 Cup | Maes / Couwberghs | | raced |
| 29.3.2008 | 250 miles Homestead | 22 | 997 GT3 Cup | de Quesada / Stanton | Alegra Motorsports | 44th |
| 29.3.2008 | 250 miles Homestead | 26 | 997 GT3 Cup | Jacalone / Jacalone | Gotham Competition | 33rd |
| 29.3.2008 | 250 miles Homestead | 29 | 997 GT3 Cup | Garcia / Gabel | Alegra Motorsports | 28th |
| 29.3.2008 | 250 miles Homestead | 66 | 997 GT3 Cup | Miller / Ballou | TRG | 26th |
| 29.3.2008 | 250 miles Homestead | 67 | 997 GT3 Cup | Pumpelly / George, Jr. | TRG | 11th |
| 29.3.2008 | 250 miles Homestead | 68 | 997 GT3 Cup | Valentine / Sellers | TRG | 18th |
| 29.3.2008 | 250 miles Homestead | 74 | 997 GT3 Cup | Skea / Safina / Lazzaro | Safina Racing with Mitchum Motorsports | 31st |
| 29.3.2008 | 250 miles Homestead | 80 | 997 GT3 Cup | Johnson / Heylen | Synergy Racing | 38th |
| 29.3.2008 | 250 miles Homestead | 86 | 997 GT3 Cup | Lux / Keen | Farnbacher Loles | 24th |
| 29.3.2008 | 250 miles Homestead | 87 | 997 GT3 Cup | Farnbacher / Werner | Farnbacher Loles | 13th |
| 29.3.2008 | 250 miles Homestead | 88 | 997 GT3 Cup | Lacey / Long | Farnbacher Loles | 32nd |
| 1.4.2008 | FIA GT Test Nogaro | 35 | 997 GT3 Cup S | | Prospeed Competition | 10th |
| 1.4.2008 | FIA GT Test Nogaro | 49 | 997 GT3 Cup | | | 42nd |
| 1.4.2008 | FIA GT Test Nogaro | 50 | 997 GT3 Cup | | AutoSport Promotion | 35th |
| 1.4.2008 | FIA GT Test Nogaro | 60 | 997 GT3 RSR | | Prospeed Competition | 8th |
| 1.4.2008 | FIA GT Test Nogaro | 61 | 997 GT3 RSR | | Prospeed Competition | 9th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 5 | 997 GT3 RSR | Carrapatoso / Stanton / Swartzbaugh | VICI Racing | DNS |
| 5.4.2008 | 1 h 55 min St. Petersburg | 6 | RS Spyder Evo | Maassen / Long | Penske Racing | 4th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 7 | RS Spyder Evo | Bernhard / Dumas | Penske Racing | 2nd |
| 5.4.2008 | 1 h 55 min St. Petersburg | 16 | RS Spyder Evo | Dyson / Smith | Dyson Racing Team | 5th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 20 | RS Spyder Evo | Franchitti / Leitzinger | Dyson Racing Team | 20th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 44 | 997 GT3 RSR | Neiman / Law | Flying Lizard Motorsports 44 | 17th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 45 | 997 GT3 RSR | Henzler / Bergmeister | Flying Lizard Motorsports | 21st |
| 5.4.2008 | 1 h 55 min St. Petersburg | 46 | 997 GT3 RSR | Pilet / van Overbeek | Flying Lizard Motorsports | 12th |
| 5.4.2008 | 1 h 55 min St. Petersburg | 87 | 997 GT3 RSR | Basseng / Werner | Farnbacher Loles Motorsports | 13th |
| 6.4.2008 | Italian GT Monza | 11 | 997 GT3 RSR | "Vic" / "Gion" | Coggiola Victor Racing Team | 9th/10th |
| 6.4.2008 | Italian GT Monza | 12 | 997 GT3 RSR | David Arnold Lance / Francisco Cruz Martins | Autorlando Sport | 4th/6th |
| 6.4.2008 | Italian GT Monza | 18 | 996 GT3-RS | Meneghello / Valentini | Engineering Durango | DNS |
| 6.4.2008 | 1000 km Catalunya | 27 | RS Spyder Evo | Theys / Lienhard / Lammers | Horag Racing | 14th |
| 6.4.2008 | 1000 km Catalunya | 31 | RS Spyder Evo | Elgaard / Nielsen | Team Essex | 9th |
| 6.4.2008 | 1000 km Catalunya | 34 | RS Spyder Evo | Verstappen / van Merksteijn | Van Merksteijn MotorsportVAN | 6th |
| 6.4.2008 | 1000 km Catalunya | 75 | 997 GT3 RSR | Belloc / Balandras / Lecourt | Imsa Performance Matmut | 27th |
| 6.4.2008 | 1000 km Catalunya | 77 | 997 GT3 RSR | Davison / Lieb | Team Felbermayr-Proton | 22nd |
| 6.4.2008 | 1000 km Catalunya | 88 | 997 GT3 RSR | Felbermayr, Jr. / Ried / Felbermayr, Sr. | Team Felbermayr-Proton | 29th |
| 6.4.2008 | 1000 km Catalunya | 91 | 997 GT3 RSR | Westbrook / Nielsen / Simonsen | Farnbacher Racing | DNF |
| 6.4.2008 | 1000 km Catalunya | 95 | 997 GT3 RSR | Forsten / Palttala / Daniels | James Watt Automotive | 28th |
| 6.4.2008 | Italian GT Monza | 103 | 997 GT3 Cup | Cappelletti / Pozzi | Promospeed | 21st/19th |
| 6.4.2008 | Italian GT Monza | 105 | 997 GT3 Cup | Petrini / Urbani | AGR Motorsport | DNF/29th |
| 6.4.2008 | Italian GT Monza | 106 | 997 GT3 Cup | Bianco / Bicciato | GDL Racing | 30th/22nd |
| 6.4.2008 | Italian GT Monza | 107 | 997 GT3 Cup | Campanello / Orsero | Happy Racer | 25th/16th |
| 6.4.2008 | Italian GT Monza | 111 | 997 GT3 Cup | Bellini / de Nora | Bonaldi Tech | 17th/20th |
| 6.4.2008 | Italian GT Monza | 112 | 997 GT3 Cup | Sala / Sada | Autorlando Sport | 16th/18th |
| 6.4.2008 | Italian GT Monza | 115 | 997 GT3 Cup | Morini / Castaldi | Ciesse Motorsport | 18th/24th |
| 6.4.2008 | Italian GT Monza | 201 | 996 GT3 | "Yah-Man" | Autorlando Sport | 27th/28th |