| November | Zhuhai 500km 1999
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round 10, China, 26 - 28 November 1999
Zhuhai 500km held on 26 - 28 November 1999 at Zhuhai International Circuit in China with twenty seven entries and results as part of 1999 FIA GT Championship. | More |
| November | Vallelunga 6 Hours 1999
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round 07, Italy, 21 November 1999
Vallelunga 6 Hours held on 21 November 1999 at ACI Vallelunga Circuit in Italy with seven entries and results as part of 1999 Campionato Italiano Supercar GT. | More |
| November | Vodacom Festival of Motor Racing 1999
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round 09, South Africa, 18 November 1999
Vodacom Festival of Motor Racing held on 18 November 1999 at Kyalami Grand Prix Circuit in South Africa with twenty entries and results as part of 1999 International Sports Racing Series. | More |
| November | Campeonato de Espana de GT Valencia 1999
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round 06, Spain, 14 November 1999
Campeonato de Espana de GT Valencia held on 14 November 1999 at Circuit de Valencia 'Ricardo Tormo' in Spain as part of 1999 International GT Open. | |
| October | GT Italian Challenge round 6 1999
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round 06, Italy, 31 October 1999
GT Italian Challenge round 6 held on 31 October 1999 at Magione in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| October | Campeonato de Espana de GT Barcelona 1999
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round 05, Spain, 24 October 1999
Campeonato de Espana de GT Barcelona held on 24 October 1999 at Circuit de Catalunya in Spain as part of 1999 International GT Open. | |
| October | GT Italian Challenge round 5 1999
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round 05, Italy, 10 October 1999
GT Italian Challenge round 5 held on 10 October 1999 at Magione in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| October | Bosch Sportsvar Oktoberfest 1999
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round 09, United States, 1 - 3 October 1999
Bosch Sportsvar Oktoberfest held on 1 - 3 October 1999 at Watkins Glen International in United States with twenty one entries and results as part of 1999 FIA GT Championship. | More |
| September | Campeonato de Espana de GT Jarama 1999
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round 04, Spain, 26 September 1999
Campeonato de Espana de GT Jarama held on 26 September 1999 at Circuito del Jarama in Spain as part of 1999 International GT Open. | |
| September | Homestead 3 Hours 1999
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round 08, United States, 24 - 26 September 1999
Homestead 3 Hours held on 24 - 26 September 1999 at Homestead-Miami Speedway in United States with seventeen entries and results as part of 1999 FIA GT Championship. | More |
| September | Sports Racing World Cup Magny-Cours 1999
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round 08, France, 18 - 19 September 1999
Sports Racing World Cup Magny-Cours held on 18 - 19 September 1999 at Circuit de Nevers-Magny Cours in France with nineteen entries and results as part of 1999 International Sports Racing Series. | More |
| September | Intl. ADAC Sportwagen Festival 1999
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round 07, Germany, 3 - 5 September 1999
Intl. ADAC Sportwagen Festival held on 3 - 5 September 1999 at Nurburgring in Germany with twenty six entries and results as part of 1999 International Sports Racing Series. | More |
| September | Donington 500km 1999
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round 07, United Kingdom, 3 - 5 September 1999
Donington 500km held on 3 - 5 September 1999 at Donington Park Racing Circuit in United Kingdom with twenty one entries and results as part of 1999 FIA GT Championship. | More |
| August | Oschersleben 500km 1999
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round 06, Germany, 8 August 1999
Oschersleben 500km held on 8 August 1999 at Motorsport Arena Oschersleben in Germany with twenty entries and results as part of 1999 FIA GT Championship. | More |
| August | GT Italian Challenge Varano 1999
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round 04, Italy, 1 August 1999
GT Italian Challenge Varano held on 1 August 1999 at Autodromo Riccardo Paletti di Varano in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| July | Sports Racing World Cup Brno 1999
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round 06, Czech Republic, 30 July - 1 August 1999
Sports Racing World Cup Brno held on 30 July - 1 August 1999 at Automotodrom Masaryk in Czech Republic with nineteen entries and results as part of 1999 International Sports Racing Series. | More |
| July | RAC Tourist Trophy 1999
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round 05, United Kingdom, 18 July 1999
RAC Tourist Trophy held on 18 July 1999 at Donington Park Racing Circuit in United Kingdom with thirty entries and results as part of 1999 International Sports Racing Series. | More |
| July | GT Italian Challenge Imola 1999
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round 03, Italy, 18 July 1999
GT Italian Challenge Imola held on 18 July 1999 at Autodromo Internazionale 'Santa Monica' di Misano Adriatico in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| July | Zolder 500km 1999
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round 05, Belgium, 17 - 18 July 1999
Zolder 500km held on 17 - 18 July 1999 at Circuit Zolder in Belgium with twenty two entries and results as part of 1999 FIA GT Championship. | More |
| July | Campeonato de Espana de GT Vila do Conde 1999
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round 03, Portugal, 11 July 1999
Campeonato de Espana de GT Vila do Conde held on 11 July 1999 at Circuito de Vila do Conde in Portugal as part of 1999 International GT Open. | |
| July | Budapest 500km 1999
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round 04, Hungary, 4 July 1999
Budapest 500km held on 4 July 1999 at Hungaroring in Hungary with twenty three entries and results as part of 1999 FIA GT Championship. | More |
| June | Sports Racing World Cup Pergusa 1999
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round 04, Italy, 27 June 1999
Sports Racing World Cup Pergusa held on 27 June 1999 at Autodromo di Pergusa in Italy with seventeen entries and results as part of 1999 International Sports Racing Series. | More |
| June | Hockenheim 500km 1999
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round 03, Germany, 25 - 27 June 1999
Hockenheim 500km held on 25 - 27 June 1999 at Hockenheimring in Germany with twenty three entries and results as part of 1999 FIA GT Championship. | More |
| June | France, 12 - 13 June 1999
67. edition des 24 Heures du Mans held on 12 - 13 June 1999 at Circuit de la Sarthe in France with fourty nine entries and results. | More |
| June | GT Italian Challenge Vallelunga 1999
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round 02, Italy, 6 June 1999
GT Italian Challenge Vallelunga held on 6 June 1999 at ACI Vallelunga Circuit in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| May | Campeonato de Espana de GT Jerez 1999
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round 02, Spain, 23 May 1999
Campeonato de Espana de GT Jerez held on 23 May 1999 at Circuito Permanente de Jerez in Spain as part of 1999 International GT Open. | |
| May | 500km of Spa-Francorchamps 1999
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round 03, Belgium, 16 May 1999
500km of Spa-Francorchamps held on 16 May 1999 at Circuit de Spa-Francorchamps in Belgium with twenty entries and results as part of 1999 International Sports Racing Series. | More |
| May | P&O Steam Line Silverstone 500 miles 1999
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round 02, United Kingdom, 7 - 9 May 1999
P&O Steam Line Silverstone 500 miles held on 7 - 9 May 1999 at Silverstone Circuit in United Kingdom with twenty two entries and results as part of 1999 FIA GT Championship. | More |
| May | Italy, 6 - 8 May 1999
Mille Miglia held on 6 - 8 May 1999 in Italy with fourty entries. | More |
| May | France, 2 May 1999
Essais Preliminaires des 24 Heures du Mans 1999 held on 2 May 1999 at Circuit de la Sarthe in France. | |
| May | GT Italian Challenge Magione 1999
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round 01, Italy, 2 May 1999
GT Italian Challenge Magione held on 2 May 1999 at Magione in Italy as part of 1999 Campionato Italiano Supercar GT. | |
| April | Campeonato de Espana de GT Albacete 1999
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round 01, Spain, 25 April 1999
Campeonato de Espana de GT Albacete held on 25 April 1999 at Circuito de Albacete in Spain as part of 1999 International GT Open. | |
| April | France, 19 - 24 April 1999
Tour Auto held on 19 - 24 April 1999 in France with two hundred thirty seven entries. | More |
| April | 500km Aprimatic ISRS Trophy 1999
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round 02, Italy, 11 April 1999
500km Aprimatic ISRS Trophy held on 11 April 1999 at Autodromo Nazionale di Monza in Italy with twenty five entries and results as part of 1999 International Sports Racing Series. | More |
| April | Monza 500km 1999
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round 01, Italy, 9 - 11 April 1999
Monza 500km held on 9 - 11 April 1999 at Autodromo Nazionale di Monza in Italy with twenty six entries and results as part of 1999 FIA GT Championship. | More |
| March | ATP ISRS Trophy Barcelona 1999
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round 01, Spain, 28 March 1999
ATP ISRS Trophy Barcelona held on 28 March 1999 at Circuit de Catalunya in Spain with seventeen entries and results as part of 1999 International Sports Racing Series. | More |