| 10.1.1999 | Daytona Test | 70 | #LM 9503 | Euser / Buurman / Vann | Marcos Racing | 23rd |
| 31.1.1999 | 24 h Daytona | 70 | #LM 9503 | Buurman / Euser / van der Kolk / Vann | Marcos Racing | 61st |
| 28.3.1999 | British GT Silverstone | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | 9th |
| 11.4.1999 | 500 km Monza [GT] | 10 | #LM 9503 | Euser / Hezemans | Marcos Racing International | 13th |
| 11.4.1999 | 500 km Monza [GT] | 11 | #LM 9901 (SA9BMMXXWXK050911) | Buurman / Willems / Schryvers | Marcos Racing International | DNA |
| 18.4.1999 | Belcar Zolder NRF | 11 | | Dupont / Willems | Marcos International | DNS |
| 18.4.1999 | Belcar Zolder NRF | 12 | | van der Kolk / Euser / Buurman | Marcos International | 5th |
| 18.4.1999 | Belcar Zolder NRF | 43 | | Bart Smolders | Marcos Racing Team Belgium | DNA |
| 25.4.1999 | SM GTR Mantorp Park | 19 | | Erik Holmqvist | Team Total | 13th/13th |
| 2.5.1999 | Belcar Spa SFD | 11 | | Dupont / Willems | Marcos International | 38th |
| 2.5.1999 | Belcar Spa SFD | 12 | | van der Kolk / Euser / Buurman | Marcos International | 5th |
| 2.5.1999 | Belcar Spa SFD | 43 | | Smolders / Cauwberghs | Marcos Racing Team Belgium | DNF |
| 3.5.1999 | British GT Oulton Park | 77 | | Erdos / Purvis | Marcos Cars/NCK Motorsport | 8th |
| 9.5.1999 | 500 mile Silverstone | 10 | #LM 9503 | Euser / Hezemans | Marcos Racing International | DNA |
| 9.5.1999 | 500 mile Silverstone | 11 | #LM 9901 (SA9BMMXXWXK050911) | Buurman / van der Kolk | Marcos Racing International | DNA |
| 16.5.1999 | SM GTR Knutstorp | 19 | | Erik Holmqvist | Team Total | 16th/17th |
| 24.5.1999 | Belcar Zandvoort | 11 | | Dupont / Willems | Marcos International | 6th |
| 24.5.1999 | Belcar Zandvoort | 12 | | van der Kolk / Euser / Buurman | Marcos International | 7th |
| 24.5.1999 | Belcar Zandvoort | 43 | | Smolders / Cauwberghs | Marcos Racing Team Belgium | DNF |
| 30.5.1999 | SM GTR Gellerasen | 19 | | Erik Holmqvist | Team Total | DNS |
| 31.5.1999 | British GT Snetterton | 77 | | Erdos / Purvis | Marcos Cars/NCK Motorsport | DNF |
| 6.6.1999 | Belcar Spa SER | 11 | | Dupont / Willems | Marcos International | 4th |
| 6.6.1999 | Belcar Spa SER | 12 | | Euser / Buurman | Marcos International | 25th |
| 13.6.1999 | 24 h Le Mans | | | Davidson / Smith | Alistair Davidson | DNA |
| 20.6.1999 | SM GTR Anderstorp | 19 | | Erik Holmqvist | Team Total | 12th/8th |
| 20.6.1999 | British GT Brands Hatch | 77 | | Erdos / Purvis | Marcos Cars/NCK Motorsport | 7th |
| 27.6.1999 | 500 km Hockenheim | 10 | #LM 9503 | Euser / Buurman | Marcos Racing International | 10th |
| 27.6.1999 | 500 km Hockenheim | 11 | #LM 9901 (SA9BMMXXWXK050911) | Herman Buurman | Marcos Racing International | DNA |
| 4.7.1999 | 500 km Hungaroring | 10 | #LM 9503 | Euser / Buurman | Marcos Racing International | 14th |
| 4.7.1999 | 500 km Hungaroring | 11 | #LM 9901 (SA9BMMXXWXK050911) | Herman Buurman | Marcos Racing International | DNA |
| 11.7.1999 | British GT Silverstone | 36 | | Keith McKenzie | Cirtek Motorsport | DNA |
| 11.7.1999 | British GT Silverstone | 48 | | Wyatt / Webb | GW Racing | DNA |
| 11.7.1999 | British GT Silverstone | 77 | | Erdos / Purvis | Marcos Cars/NCK Motorsport | 7th |
| 11.7.1999 | British GT Silverstone | 78 | | Millward / Sands | Marcos Cars/NCK Motorsport | 26th |
| 18.7.1999 | 500 km Zolder | 10 | #LM 9503 | Willems / Dupont | Marcos Racing International | DNF |
| 18.7.1999 | Belcar Zolder FIA GT | 11 | | Dupont / Willems | Marcos International | DNF |
| 18.7.1999 | 500 km Zolder | 11 | | Euser / Buurman | Marcos Racing International | DNF |
| 18.7.1999 | Belcar Zolder FIA GT | 12 | | Euser / Buurman | Marcos International | 4th |
| 18.7.1999 | SM GTR Falkenberg | 19 | | Erik Holmqvist | Team Total | 15th/13th |
| 18.7.1999 | Belcar Zolder FIA GT | 43 | | Smolders / Cauwberghs | Marcos Racing Team Belgium | 33rd |
| 1.8.1999 | SM GTR Anderstorp | 19 | | Erik Holmqvist | Team Total | 15th/DNF |
| 7.8.1999 | British GT Donington I | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | DNF |
| 7.8.1999 | British GT Donington I | 78 | | Lockie / Marsh | NCK Motorsport | DNF |
| 8.8.1999 | 500 km Oschersleben | 10 | #LM 9901 (SA9BMMXXWXK050911) | Hezemans / Buurman | Marcos Racing International | DNS |
| 8.8.1999 | British GT Donington II | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | 6th |
| 8.8.1999 | British GT Donington II | 78 | | Lockie / Marsh | NCK Motorsport | NC |
| 22.8.1999 | British GT Silverstone | 46 | | Euser / Lockie | Marcos Racing International | 7th |
| 22.8.1999 | British GT Silverstone | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | DNF |
| 29.8.1999 | SM GTR Mantorp Park | 19 | | Erik Holmqvist | Team Total | 16th/DNF |
| 5.9.1999 | 500 km Donington | 10 | #LM 9901 (SA9BMMXXWXK050911) | Buurman / Hezemans | Marcos Racing International | DNA |
| 5.9.1999 | 24 h Zolder | 12 | | Buurman / de Dryver / Euser | Marcos International | 4th |
| 5.9.1999 | 24 h Zolder | 43 | | Smolders / Cauwberghs / Goelen | Marcos Racing Team Belgium | DNF |
| 5.9.1999 | British GT Croft | 46 | | Lockie / Ward | Marcos Racing International | DNS |
| 5.9.1999 | British GT Croft | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | DNF |
| 26.9.1999 | Belcar Spa RF | 11 | | Dupont / Willems | Marcos International | DNF |
| 26.9.1999 | Belcar Spa RF | 12 | | Euser / Buurman | Marcos International | DNF |
| 26.9.1999 | Belcar Spa RF | 43 | | Smolders / Cauwberghs | Marcos Racing Team Belgium | DNA |
| 26.9.1999 | British GT Spa | 46 | | Lockie / Euser | Marcos Racing International | 6th |
| 26.9.1999 | British GT Spa | 77 | | Erdos / Purvis | Marcos Cars/NCK Motorsport | DNF |
| 10.10.1999 | British GT Silverstone | 39 | | Newman / Wyatt | GW Racing | DNF |
| 10.10.1999 | British GT Silverstone | 46 | | Lockie / Euser | Marcos Racing International | 19th |
| 10.10.1999 | British GT Silverstone | 77 | | Purvis / Erdos | Marcos Cars/NCK Motorsport | 4th |
| 10.10.1999 | British GT Silverstone | 78 | | Byford / Millward | Marcos Cars/NCK Motorsport | DNF |
| 17.10.1999 | Belcar Zolder BM | 11 | | Dupont / Willems | Marcos International | 2nd |
| 24.10.1999 | Spanish GT Barcelona | 3 | | Euser / Buurman | Marcos Racing International | DNF/1st |
| 30.10.1999 | 500 km Zandvoort | | | Lockie / Buurman / Reenen | Marcos Racing International | 1st |
| 30.10.1999 | 500 km Zandvoort | | | Cor Euser | Marcos Racing International | DNF |
| 31.10.1999 | 500 km Valencia | 24 | | Euser / Buurman / Lockie | Marcos Racing Intl. | 32nd |
| 14.11.1999 | Spanish GT Valencia | 3 | | Cor Euser | Marcos Racing International | 1st/5th |