| 11.5.2008 | Brasil GT3 São Paulo | 6 | | Fittipaldi / Fittipaldi | WB Motorsports | 9th/9th |
| 11.5.2008 | ADAC GT Oschersleben | 15 | #WP0ZZZ99Z8S798322 | Bergmeister / Bergmeister | Mühlner Motorsport | 2nd/3rd |
| 11.5.2008 | ADAC GT Oschersleben | 16 | #WP0ZZZ99Z8S798330 | Bleekemolen / Van De Laar | Mühlner Motorsport | DNF/15th |
| 11.5.2008 | ADAC GT Oschersleben | 27 | #WP0ZZZ99Z6S798165 | Langen / Hannawald | Schnabl Engineering | 17th/DNF |
| 11.5.2008 | ADAC GT Oschersleben | 28 | #WP0ZZZ99Z7S798228 | Lauck / Richter | JvO Autosport | 19th/13th |
| 11.5.2008 | ADAC GT Oschersleben | 33 | #WP0ZZZ99Z8S798331 | Stippler / Ebeling | Heico Motorsport | 15th/DNF |
| 11.5.2008 | ADAC GT Oschersleben | 39 | #WP0ZZZ99Z7S798020 | Ellinger / Dragoun | G-Private-Racing | 18th/18th |
| 11.5.2008 | ADAC GT Oschersleben | 40 | #WP0ZZZ99Z7S798226 | Peham / Schmitter | G-Private-Racing | 16th/16th |
| 11.5.2008 | FFSA GT Dijon | 50 | | Brouard / Stépec | RMS Emeraude Racing | 26th/22nd |
| 11.5.2008 | FFSA GT Dijon | 63 | | Lelièvre / Polette | IMSA | 23rd/18th |
| 11.5.2008 | FFSA GT Dijon | 67 | | Pont / Bachelier | GCR | 22nd/21st |
| 17.5.2008 | 250 miles Laguna Seca | 27 | #WP0ZZZ99Z6S798026 | O'Connell / Roush | O'Connell Racing | 19th |
| 17.5.2008 | 250 miles Laguna Seca | 64 | #WP0ZZZ99Z5S798102 | Lowe / Pace | TRG | 41st |
| 17.5.2008 | 250 miles Laguna Seca | 65 | #WP0ZZZ99Z8S798111 | Stanton / Maher | TRG/Riegel Autosport | 21st |
| 17.5.2008 | 250 miles Laguna Seca | 66 | #WP0ZZZ99Z8S798100 | Miller / Ballou | TRG | 23rd |
| 17.5.2008 | 250 miles Laguna Seca | 67 | #WP0ZZZ99Z8S798101 | Pumpelly / George, Jr. | TRG | 15th |
| 17.5.2008 | 250 miles Laguna Seca | 68 | #WP0ZZZ99Z7S798051 | Valentine / Sellers | TRG | 37th |
| 17.5.2008 | 250 miles Laguna Seca | 86 | #WP0ZZZ99Z7S798083 | Lux / Keen | Farnbacher Loles Racing | 18th |
| 17.5.2008 | 250 miles Laguna Seca | 87 | #WP0ZZZ99Z7S798099 | Werner / Kaffer | Farnbacher Loles Racing | 25th |
| 17.5.2008 | 250 miles Laguna Seca | 88 | #0081 | Lacey / Johnson | Farnbacher Loles Racing | 20th |
| 18.5.2008 | FIA GT3 Monza | 6 | | Williams / Ashburn | Trackspeed | DNF/7th |
| 18.5.2008 | FIA GT3 Monza | 7 | | Nuttal / Shelley | Trackspeed | 20th/DNF |
| 18.5.2008 | FIA GT3 Monza | 35 | #WP0ZZZ99Z8S798316 | Lamot / Penders | Prospeed Competition | 19th/10th |
| 18.5.2008 | FIA GT3 Monza | 36 | #WP0ZZZ99Z8S798315 | Loix / Lémeret | Prospeed Competition | DNF/DNF |
| 18.5.2008 | FIA GT3 Monza | 39 | | Thomas / Jiřík | Muehlner Motorsport | 13th/12th |
| 18.5.2008 | FIA GT3 Monza | 40 | | Bergmeister / Cloet | Muehlner Motorsport | 16th/28th |
| 24.5.2008 | ADAC GT Nürburgring | 15 | #WP0ZZZ99Z8S798322 | Bergmeister / Basseng | Mühlner Motorsport | 6th/4th |
| 24.5.2008 | ADAC GT Nürburgring | 16 | #WP0ZZZ99Z8S798330 | de Groot / Van De Laar | Mühlner Motorsport | 13th/14th |
| 24.5.2008 | ADAC GT Nürburgring | 27 | #WP0ZZZ99Z6S798165 | Langen / Hannawald | Schnabl Engineering | DNS/19th |
| 24.5.2008 | ADAC GT Nürburgring | 28 | #WP0ZZZ99Z7S798228 | Lauck / Richter | JvO Autosport | 12th/13th |
| 24.5.2008 | ADAC GT Nürburgring | 33 | #WP0ZZZ99Z8S798331 | Arnold / Stippler | Heico Motorsport | 1st/12th |
| 24.5.2008 | ADAC GT Nürburgring | 39 | #WP0ZZZ99Z7S798020 | Dragoun / Ellinger | G-Private-Racing | 15th/17th |
| 24.5.2008 | ADAC GT Nürburgring | 40 | #WP0ZZZ99Z7S798226 | Peham / Schmitter | G-Private-Racing | 14th/16th |
| 25.5.2008 | 24 h Nürburgring | 26 | #WP0ZZZ99Z5S798005 | Kräling / Gindorf / Scharmach / Ragginger | Manthey Racing | 5th |
| 25.5.2008 | 24 h Nürburgring | 27 | #WP0ZZZ99Z5S798004 | Williams / Cooke / Perry / Reeves | Manthey Racing | 12th |
| 25.5.2008 | 24 h Nürburgring | 28 | | Weiland / Roth / Klein / Feidt | Scuderia Offenbach | 49th |
| 25.5.2008 | 24 h Nürburgring | 29 | | Weiland / Mayer / Wirtz / Groß | Scuderia Offenbach | DNF |
| 25.5.2008 | 24 h Nürburgring | 30 | | Kohlstrung / Wahl / Bär / Elm | | 20th |
| 25.5.2008 | 24 h Nürburgring | 33 | | Matveev / Gorban / Gryazin / Tsarev | Land-Motorsport PZ Aschaffenburg | 10th |
| 25.5.2008 | 24 h Nürburgring | 35 | | Tschornia / Kovac / Asch / Asch | | DNF |
| 25.5.2008 | 24 h Nürburgring | 45 | | Jörn Schmidt-Staade | AGON Motorsport | 7th |
| 25.5.2008 | 24 h Nürburgring | 46 | | Peters / Karlsson / Plesse / Kohler | AGON Motorsport | 9th |
| 26.5.2008 | British GT Rockingham | 5 | | Harvey / Ashburn | Trackspeed | 9th/7th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 65 | #WP0ZZZ99Z8S798111 | Potter / Stanton | TRG/Riegel Autosport | 13th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 66 | #WP0ZZZ99Z8S798100 | Miller / Ballou | TRG | 10th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 67 | #WP0ZZZ99Z8S798101 | Pumpelly / George, Jr. | TRG | 6th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 68 | #WP0ZZZ99Z7S798051 | Valentine / Sellers / Lally | TRG | 11th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 86 | #WP0ZZZ99Z7S798083 | Lux / Keen | Farnbacher Loles Racing | 14th |
| 26.5.2008 | 250 miles Lime Rock [GT] | 87 | #WP0ZZZ99Z7S798099 | Werner / Farnbacher | Farnbacher Loles Racing | 15th |
| 30.5.2008 | Britcar Spa | 10 | | Collis / Mason | Team PCR | 21st |
| 30.5.2008 | Britcar Spa | 14 | | Mundy / Hulford | RSS Performance | 4th |
| 30.5.2008 | Britcar Spa | 36 | | MacKintosh / Lockie | RSS Performance | 15th |
| 1.6.2008 | Belcar Zolder Anniversary | 1 | | Franchi / Soulet | GPR Pino Racing | 1st |
| 1.6.2008 | Belcar Zolder Anniversary | 11 | #WP0ZZZ99Z8S798318 | Couwberghs / Maes | NGT Racing | 4th |
| 1.6.2008 | Belcar Zolder Anniversary | 250 | | Lagrange / Nelissen-Grade | First Motorsport | 10th |
| 1.6.2008 | Belcar Zolder Anniversary | 264 | | van Hover / Langeberg | Speedlover | 11th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 103 | | Pozzi / Cappelletti | Promospeed | 13th/9th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 105 | | Petrini / Urbani | AGR Motorsport | 17th/19th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 106 | | Borghi / de Lorenzi | GDL Racing | 6th/3rd |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 107 | | Orsero / Campanello | Happy Racer | DNF/11th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 111 | | Bellini / de Nora | Bonaldi Tech | 12th/6th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 112 | | Sala / Sada | Autorlando Sport | 8th/16th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 118 | | Passuti / Antonelli | AB Motorsport | 3rd/8th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 122 | | Greco / Gatta | Gatta | 9th/10th |
| 6.6.2008 | Italian GT Magione [GT3/GT4/GTC] | 123 | | Rizzo / de Bellis | Rizzo | 10th/12th |
| 7.6.2008 | 6 Watkins Glen | 14 | #WP0ZZZ99Z8S798104 | Friedman / McGehee / Baas | Autometrics Motorsports | 33rd |
| 7.6.2008 | 6 Watkins Glen | 22 | #WP0ZZZ99Z7S798098 | de Quesada / Basseng / Dumoulin | Alegra Motorsports | 23rd |
| 7.6.2008 | 6 Watkins Glen | 26 | #WP0ZZZ99Z8S798106 | Jacalone / Jacalone | Gotham Competition | 42nd |
| 7.6.2008 | 6 Watkins Glen | 27 | #WP0ZZZ99Z6S798026 | O'Connell / Roush | O'Connell Racing | 21st |
| 7.6.2008 | 6 Watkins Glen | 29 | #WP0ZZZ99Z8S798109 | Garcia / Gabel | Alegra Motorsports | 31st |
| 7.6.2008 | 6 Watkins Glen | 64 | #WP0ZZZ99Z5S798102 | Lowe / Pace / Sugden | TRG | 34th |
| 7.6.2008 | 6 Watkins Glen | 65 | #WP0ZZZ99Z8S798111 | Stanton / Gutierrez / Maher | TRG/Riegel Autosport | 25th |
| 7.6.2008 | 6 Watkins Glen | 66 | #WP0ZZZ99Z8S798100 | Miller / Ballou / Westbrook | TRG | 27th |
| 7.6.2008 | 6 Watkins Glen | 67 | #WP0ZZZ99Z8S798101 | Pumpelly / George, Jr. | TRG | 43rd |
| 7.6.2008 | 6 Watkins Glen | 68 | #WP0ZZZ99Z7S798051 | Valentine / Sellers / Pobst | TRG | 30th |
| 7.6.2008 | 6 Watkins Glen | 74 | #WP0ZZZ99Z7S798090 | Brumbaugh | GTS Racing with Mitchum Motorsports | 45th |
| 7.6.2008 | 6 Watkins Glen | 86 | #WP0ZZZ99Z7S798083 | Lux / Kaffer / Keen | Farnbacher Loles Racing | 40th |
| 7.6.2008 | 6 Watkins Glen | 87 | #WP0ZZZ99Z7S798099 | Werner / Henzler | Farnbacher Loles Racing | 44th |
| 7.6.2008 | 6 Watkins Glen | 88 | #0081 | Lacey / Johnson / Potter | Farnbacher Loles Racing | 26th |
| 8.6.2008 | Spanish GT Jerez | 34 | | Castro / Espinosa | Detector Drivex Porsche | 13th/13th |
| 8.6.2008 | Spanish GT Jerez | 35 | | Gellweiler / Peres | Detector Drivex Porsche | DNF/15th |
| 14.6.2008 | Britcar Brands Hatch | 6 | | Hogarth / Pickford | In2 Racing | DNF |
| 14.6.2008 | Britcar Brands Hatch | 19 | | Jones / Jones / Jones | Eurotech Motorsport | DNS |
| 15.6.2008 | Brasil GT3 Brasília | 5 | | Gresse / Brito | WB Motorsports | 2nd/4th |
| 15.6.2008 | Brasil GT3 Brasília | 6 | | Fittipaldi / Fittipaldi | WB Motorsports | 5th/5th |
| 21.6.2008 | 250 miles Mid-Ohio | 65 | #WP0ZZZ99Z8S798111 | Stanton / Gutierrez | TRG/Riegel Autosport | 15th |
| 21.6.2008 | 250 miles Mid-Ohio | 66 | #WP0ZZZ99Z8S798100 | Ballou / Lally | TRG | 14th |
| 21.6.2008 | 250 miles Mid-Ohio | 67 | #WP0ZZZ99Z8S798101 | George, Jr. | TRG | 37th |
| 21.6.2008 | 250 miles Mid-Ohio | 68 | #WP0ZZZ99Z7S798051 | Valentine / Sellers | TRG | 26th |
| 21.6.2008 | 250 miles Mid-Ohio | 71 | #WP0ZZZ99Z6S798042 | Grant / Grant | Synergy Racing | 28th |
| 21.6.2008 | 250 miles Mid-Ohio | 74 | #WP0ZZZ99Z7S798090 | Skea / Schiff | GTS Racing with Mitchum Motorsports | 33rd |
| 21.6.2008 | 250 miles Mid-Ohio | 86 | #WP0ZZZ99Z7S798083 | Lux / Keen | Farnbacher Loles Racing | 11th |
| 21.6.2008 | 250 miles Mid-Ohio | 87 | #WP0ZZZ99Z7S798099 | Werner / Miller | Farnbacher Loles Racing | 35th |
| 21.6.2008 | 250 miles Mid-Ohio | 88 | #0081 | Lacey / Johnson | Farnbacher Loles Racing | 21st |
| 29.6.2008 | Spanish GT Albacete | 34 | | Castro / Espinosa | Detector Drivex Porsche | 7th/12th |
| 29.6.2008 | FFSA GT Val de Vienne | 67 | #WP0ZZZ99Z6S798143 | Pont / Bachelier | GCR | DNF/24th |
| 29.6.2008 | Italian GT Valencia | 103 | | Cappelletti / Pozzi | Promospeed | 19th/17th |
| 29.6.2008 | Italian GT Valencia | 106 | | Ninzoli / Piodi | GDL Racing | DNF/DNF |
| 29.6.2008 | Italian GT Valencia | 107 | | Campanello / Orsero | Happy Racer | 18th/23rd |
| 29.6.2008 | Italian GT Valencia | 111 | | Bellini / de Nora | Bonaldi Tech | 21st/19th |