| November | Bahrain, 25 November 2005
FIA GT Championship Bahrain held on 25 November 2005 at Bahrain International Racing Circuit in Bahrain with twenty five entries and results as part of 2005 FIA GT Championship. | More |
| November | United Arab Emirates, 17 - 18 November 2005
FIA GT Championship Dubai held on 17 - 18 November 2005 at Dubai Autodrome in United Arab Emirates with twenty seven entries and results as part of 2005 FIA GT Championship. | More |
| November | Campeonato de Espana de GT Barcelona 2005
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round 06, Spain, 13 November 2005
Campeonato de Espana de GT Barcelona held on 13 November 2005 at Circuit de Catalunya in Spain as part of 2005 International GT Open. | |
| November | 1000km d'Istanbul 2005
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round 05, Turkey, 6 November 2005
1000km d'Istanbul held on 6 November 2005 at Istanbul Park in Turkey with thirty four entries and results as part of 2005 Le Mans Endurance Series. | More |
| October | China, 23 October 2005
FIA GT Championship Zhuhai held on 23 October 2005 at Zhuhai International Circuit in China with twenty three entries and results as part of 2005 FIA GT Championship. | More |
| October | Campeonato de Espana de GT Jerez 2005
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round 05, Spain, 16 October 2005
Campeonato de Espana de GT Jerez held on 16 October 2005 at Circuito Permanente de Jerez in Spain as part of 2005 International GT Open. | |
| September | Campeonato de Espana de GT Albacete 2005
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round 04, Spain, 18 September 2005
Campeonato de Espana de GT Albacete held on 18 September 2005 at Circuito de Albacete in Spain as part of 2005 International GT Open. | |
| September | Turkey, 18 September 2005
FIA GT Championship Istanbul held on 18 September 2005 at Istanbul Park in Turkey with nineteen entries and results as part of 2005 FIA GT Championship. | More |
| September | 1000km de Nurburgring 2005
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round 04, Germany, 4 September 2005
1000km de Nurburgring held on 4 September 2005 at Nurburgring in Germany with fourty four entries and results as part of 2005 Le Mans Endurance Series. | More |
| August | Germany, 27 - 28 August 2005
FIA GT Championship Oschersleben held on 27 - 28 August 2005 at Motorsport Arena Oschersleben in Germany with twenty three entries and results as part of 2005 FIA GT Championship. | More |
| August | 1000km de Silverstone 2005
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round 03, United Kingdom, 13 August 2005
1000km de Silverstone held on 13 August 2005 at Silverstone Circuit in United Kingdom with fourty eight entries and results as part of 2005 Le Mans Endurance Series. | More |
| July | Proximus 24 Hours of Spa 2005
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round 06, Belgium, 30 - 31 July 2005
Proximus 24 Hours of Spa held on 30 - 31 July 2005 at Circuit de Spa-Francorchamps in Belgium with thirty seven entries and results as part of 2005 FIA GT Championship. | More |
| July | 1000km de Monza 2005
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round 02, Italy, 10 July 2005
1000km de Monza held on 10 July 2005 at Autodromo Nazionale di Monza in Italy with fourty five entries and results as part of 2005 Le Mans Endurance Series. | More |
| June | Campeonato de Espana de GT Estoril 2005
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round 03, Portugal, 26 June 2005
Campeonato de Espana de GT Estoril held on 26 June 2005 at Autodromo do Estoril in Portugal as part of 2005 International GT Open. | |
| June | Czech Republic, 26 June 2005
FIA GT Championship Brno held on 26 June 2005 at Automotodrom Masaryk in Czech Republic with twenty six entries and results as part of 2005 FIA GT Championship. | More |
| June | France, 18 - 19 June 2005
73. edition des 24 Heures du Mans held on 18 - 19 June 2005 at Circuit de la Sarthe in France with fourty nine entries and results. | More |
| May | Italy, 26 - 29 May 2005
FIA GT Championship Imola held on 26 - 29 May 2005 at Autodromo Enzo e Dino Ferrari in Italy with twenty five entries and results as part of 2005 FIA GT Championship. | More |
| May | Italy, 19 - 21 May 2005
Mille Miglia held on 19 - 21 May 2005 at Piazza della Vittoria in Italy with three hundred seventy five entries and results. | More |
| May | Campeonato de Espana de GT Valencia 2005
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round 02, Spain, 15 May 2005
Campeonato de Espana de GT Valencia held on 15 May 2005 at Circuit de Valencia 'Ricardo Tormo' in Spain as part of 2005 International GT Open. | |
| May | Tourist Trophy 2005
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round 03, United Kingdom, 13 - 15 May 2005
Tourist Trophy held on 13 - 15 May 2005 at Silverstone Circuit in United Kingdom with twenty six entries and results as part of 2005 FIA GT Championship. | More |
| April | France, 30 April - 1 May 2005
FIA GT Championship Magny-Cours held on 30 April - 1 May 2005 at Circuit de Nevers-Magny Cours in France with thirty one entries and results as part of 2005 FIA GT Championship. | More |
| April | France, 25 - 30 April 2005
Tour Auto Lissac held on 25 - 30 April 2005 in France with two hundred entries. | More |
| April | Italy, 22 - 24 April 2005
Concorso d'Eleganza Villa d'Este held on 22 - 24 April 2005 at Villa d'Este in Italy with ninety one entries. | More |
| April | Campeonato de Espana de GT Jarama 2005
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round 01, Spain, 17 April 2005
Campeonato de Espana de GT Jarama held on 17 April 2005 at Circuito del Jarama in Spain as part of 2005 International GT Open. | |
| April | 1000km de Spa-Francorchamps 2005
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round 01, Belgium, 17 April 2005
1000km de Spa-Francorchamps held on 17 April 2005 at Circuit de Spa-Francorchamps in Belgium with fourty eight entries and results as part of 2005 Le Mans Endurance Series. | More |
| April | Italy, 9 - 10 April 2005
FIA GT Championship Monza held on 9 - 10 April 2005 at Autodromo Nazionale di Monza in Italy with twenty eight entries and results as part of 2005 FIA GT Championship. | More |
| April | LMES Official Test 2005
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round 00, France, 1 - 2 April 2005
LMES Official Test held on 1 - 2 April 2005 at ASA Circuit Paul Ricard, Circuit du Castellet in France with four entries and results as part of 2005 Le Mans Endurance Series. | More |