| 22.5.1988 | BRDC C2 Donington | 3 | TS85 | Williams / Walters | Chamberlain Engineering | 6th |
| 22.5.1988 | BRDC C2 Donington | 7 | GC287 | Walker / Stott | F.A.I. Automotive | 2nd |
| 22.5.1988 | BRDC C2 Donington | 66 | TS87 | Catlow / McAlpine | Andrew McAlpine | DNF |
| 30.5.1988 | 150 lap Lime Rock | 9 | GT288 | David Loring | Essex Racing | 19th |
| 30.5.1988 | 150 lap Lime Rock | 19 | GT286 | Tom Hessert | Essex Racing Services | 14th |
| 30.5.1988 | 150 lap Lime Rock | 40 | GT286 | Bieri / Daccò | Gaston Andrey Racing | 22nd |
| 5.6.1988 | BRDC C2 Silverstone | 1 | GT287 | Hodgetts / Harvey | Team Istel | 2nd |
| 5.6.1988 | BRDC C2 Silverstone | 3 | TS85 | Walters / Williams | Chamberlain Engineering | DNA |
| 5.6.1988 | BRDC C2 Silverstone | 7 | GC287 | Walker / Stott | F.A.I. Automotive | DNF |
| 5.6.1988 | 500 km Mid-Ohio | 9 | GT288 | Loring / Jacobson | Essex Racing | 28th |
| 5.6.1988 | 500 km Mid-Ohio | 19 | GT286 | Schneider / Hessert | Essex Racing | 18th |
| 5.6.1988 | 500 km Mid-Ohio | 38 | GT285 | Miller / Rose | Borden Snack foods | 23rd |
| 5.6.1988 | 500 km Mid-Ohio | 40 | GT286 | Bieri / Daccò | Gaston Andrey | 21st |
| 5.6.1988 | BRDC C2 Silverstone | 55 | TS86 | Pool / Flux | Plumtree Racing | 1st |
| 5.6.1988 | BRDC C2 Silverstone | 56 | TS85 | McGaughay / Wilson | F.E.S. Racing Forth Electrical Services | 3rd |
| 5.6.1988 | BRDC C2 Silverstone | 66 | TS87 | Catlow / McAlpine | Andrew McAlpine | DNA |
| 5.6.1988 | SM Varano | | SC87 B | Fritz Betschart | | 4th |
| 5.6.1988 | SM Varano | | SC87 | René Traversa | | 1st |
| 5.6.1988 | SM Varano | | SC84 | Michel Walpen | | 2nd |
| 12.6.1988 | 24 h Le Mans | 20 | GC88 | Lee-Davey / Dodd-Noble | Team Davey | DNF |
| 12.6.1988 | 24 h Le Mans | 106 | GC288 | Barberio / Veninata / Randaccio | Kelmar Racing Team | DNA |
| 12.6.1988 | 24 h Le Mans | 123 | GC287 | Sheldon / Harvey / Hodgetts | Charles Ivey Racing Team Istel | 20th |
| 12.6.1988 | 24 h Le Mans | 134 | GC286 | Slim Borgudd | American Alloy Engines | DNA |
| 12.6.1988 | 24 h Le Mans | 140 | GC287 | Bain / Sheldon / Sigala / Pagani / Ratcliffe / Payne | Ratcliffe Dune Motorsport | DNA |
| 12.6.1988 | 24 h Le Mans | 198 | GC286 | Allison / Hynes / Andrews | Roy Baker Racing | 23rd |
| 19.6.1988 | SM Dijon | 525 | SC81 | Bruno Baur | | 5th |
| 19.6.1988 | SM Dijon | | SC83 | Roberto Zuercher | | ?th |
| 19.6.1988 | SM Dijon | | SC82 | Heinz Jueni | | raced |
| 19.6.1988 | SM Dijon | | SC84 | Gerhard Kessler | | ?th |
| 19.6.1988 | SM Dijon | | SC87 B | Fritz Betschart | | 4th |
| 26.6.1988 | Supercup Norisring | 62 | GC288 | Maurizio Gellini | Kelmar Racing Team | DNA |
| 26.6.1988 | Supercup Norisring | 63 | GC288 | Pasquale Barberio | Kelmar Racing Team | DNA |
| 26.6.1988 | Supercup Norisring | 69 | GC286 | Helmut Gall | Roy Baker Racing | 9th |
| 3.7.1988 | 500 km Watkins Glen | 9 | GT288 | Hessert / Loring | Essex Racing Services | 15th |
| 3.7.1988 | 500 km Watkins Glen | 40 | GT286 | Bieri / Guatamacchi | Gaston Andrey Racing | 14th |
| 3.7.1988 | SM Hockenheim | 614 | SC81 | Bruno Baur | | ?th |
| 3.7.1988 | SM Hockenheim | | SC86 | Kürschner | | ?th |
| 3.7.1988 | SM Hockenheim | | SC82 | Heinz Jueni | | raced |
| 3.7.1988 | SM Hockenheim | | SC87 | Brands | | ?th |
| 3.7.1988 | SM Hockenheim | | SC87 B | Fritz Betschart | | ?th |
| 3.7.1988 | SM Hockenheim | | SC84 | Gerhard Kessler | | raced |
| 3.7.1988 | SM Hockenheim | | SC84 | Michel Walpen | | ?th |
| 3.7.1988 | SM Hockenheim | | SC87 | René Traversa | | ?th |
| 3.7.1988 | SM Hockenheim | | | van Diessen | | ?th |
| 3.7.1988 | SM Hockenheim | | SC87 | Zwolsman | | ?th |
| 3.7.1988 | SM Hockenheim | | SC80 | Martin P. Flach | | ?th |
| 10.7.1988 | 360 km Brno | 20 | GC88 | Lee-Davey / Hodgetts | Team Lee-Davey | DNS |
| 10.7.1988 | 360 km Brno | 106 | GC288 | Barberio / Veninata | Kelmar Racing | 11th |
| 10.7.1988 | 360 km Brno | 109 | GC288 | Gellini / Randaccio | Kelmar Racing | DNF |
| 10.7.1988 | 360 km Brno | 198 | GC286 | Bender / Kimpton | Roy Baker Racing | 12th |
| 17.7.1988 | 500 km Road America | 06 | GT286 | Vitolo | Brown Racing | 47th |
| 17.7.1988 | 500 km Road America | 9 | GT288 | Loring | Essex Racing | 44th |
| 17.7.1988 | 500 km Road America | 19 | GT286 | Wolff / Hessert | Essex Racing | 22nd |
| 17.7.1988 | 500 km Road America | 31 | GT285 | Miller / Rose | Spectra Motorsports | 38th |
| 17.7.1988 | 500 km Road America | 40 | GT286 | Melgrati | Gaston Andrey Racing | 48th |
| 24.7.1988 | 1000 km Brands Hatch | 106 | GC288 | Gellini / Randaccio / Barberio | Kelmar Racing Team | DNA |
| 24.7.1988 | 1000 km Brands Hatch | 109 | GC288 | Randaccio / Gellini / Veninata | Kelmar Racing | 9th |
| 24.7.1988 | 1000 km Brands Hatch | 112 | GC287 | Walker / Stott / Flux | FAI Automotive Ltd. | DNF |
| 24.7.1988 | 1000 km Brands Hatch | 123 | GC287 | Harvey / Hodgetts / Donovan | Charles Ivey Racing/Istel/Goal Systems | 12th |
| 24.7.1988 | 1000 km Brands Hatch | 123T | GT287 | Harvey / Hodgetts / Donovan | Charles Ivey Racing/Istel/Goal Systems | unused |
| 24.7.1988 | 1000 km Brands Hatch | 125 | GC85 | Ferrarin / Lacaud | Patrick Oudet Vetir Racing | DNF |
| 24.7.1988 | 1000 km Brands Hatch | 198 | GC286 | Hynes / Cohen-Olivar / Bartlett | Roy Baker Racing | NC |
| 31.7.1988 | 300 km Portland | 9 | GT288 | David Loring | Essex Racing | 16th |
| 31.7.1988 | 300 km Portland | 19 | GT286 | Tom Hessert | Essex Racing Services | 12th |
| 31.7.1988 | Thundersports Snetterton | 54 | TS85 | McGaughay / Wilson | FES Forth Electrical Stirling Ltd. | DNF |
| 31.7.1988 | Thundersports Snetterton | 55 | TS86 | Pool / Wykeham | Plumtree Racing | 5th |
| 31.7.1988 | Thundersports Snetterton | 66 | TS87 | McAlpine / Catlow | A. W. McAlpine | 4th |
| 7.8.1988 | Supercup Diepholz | 69 | GC286 | Helmut Gall | Roy Baker Racing | DNA |
| 14.8.1988 | 300 km Sears Point | 9 | GT288 | David Loring | Essex Racing | 21st |
| 14.8.1988 | 300 km Sears Point | 19 | GT286 | Hessert / Visger | Essex Racing | 24th |
| 14.8.1988 | 300 km Sears Point | 40 | GT286 | Bieri / Daccò | Gaston Andrey | DNA |
| 21.8.1988 | BRDC C2 Oulton Park | 1 | GT287 | Harvey / Hodgetts | Team Istel | 1st |
| 21.8.1988 | BRDC C2 Oulton Park | 3 | TS85 | Walters / Williams | Chamberlain Engineering | 7th |
| 21.8.1988 | BRDC C2 Oulton Park | 4 | GC287 | Stirling / Hyett | Curtain Dream Plc | 4th |
| 21.8.1988 | BRDC C2 Oulton Park | 7 | GC287 | Stott / Walker | FAI Automotive | 8th |
| 21.8.1988 | BRDC C2 Oulton Park | 55 | TS86 | Pool / Leslie | Plumtree Racing | 3rd |
| 21.8.1988 | BRDC C2 Oulton Park | 56 | TS85 | McGaughay / Wilson | F.E.S. Racing Forth Electrical Services | DNF |
| 21.8.1988 | BRDC C2 Oulton Park | 66 | TS87 | Bain / McAlpine | Andrew McAlpine | 5th |
| 29.8.1988 | Thundersports Brands Hatch | 54 | TS85 | McGaughay / Bain | FES Forth Electrical Stirling Ltd. | 3rd |
| 29.8.1988 | Thundersports Brands Hatch | 55 | TS86 | Pool / Stott | Plumtree Racing | 5th |
| 29.8.1988 | Thundersports Brands Hatch | 66 | TS87 | McAlpine / Catlow | A. W. McAlpine | DNS |
| 29.8.1988 | Thundersports Brands Hatch | | SC80 | Turner / Snowdon | Meregan Turner | 10th |
| 4.9.1988 | 3 h San Antonio | 9 | GT288 | Loring | Essex Racing | 23rd |
| 4.9.1988 | 3 h San Antonio | 19 | GT286 | Hessert / Wolff | Essex Racing Services | 9th |
| 4.9.1988 | 1000 km Nürburgring | 20 | GC88 | | Tim Lee-Davey | DNA |
| 4.9.1988 | 3 h San Antonio | 93 | GT287 | Vehle / Henderson | Mandeville Auto Tech | 13th |
| 4.9.1988 | 1000 km Nürburgring | 106 | GC288 | Veninata / Barberio | Kelmar Racing | 12th |
| 4.9.1988 | 1000 km Nürburgring | 109 | GC288 | Gellini / Randaccio | Kelmar Racing | DNF |
| 4.9.1988 | 1000 km Nürburgring | 125 | GC85 | Oudet / Ferrarin | Patrick Oudet, Vetir Racing | DNA |
| 4.9.1988 | 1000 km Nürburgring | 198 | GC286 | Sheldon / Crang | Roy Baker Racing | NC |
| 11.9.1988 | Thundersports Oulton Park | 11 | GT287 | Chiles / Harvey | Team Istel | 3rd |
| 11.9.1988 | Thundersports Oulton Park | 54 | TS85 | McGaughay / Wilson | FES Forth Electrical Stirling Ltd. | 5th |
| 11.9.1988 | Thundersports Oulton Park | 55 | TS86 | Flux / Pool | Plumtree Racing | 2nd |
| 11.9.1988 | Thundersports Oulton Park | 66 | TS87 | McAlpine / Catlow | A. W. McAlpine | 4th |
| 11.9.1988 | Thundersports Oulton Park | | TS85 | Williams / Walters | Chamberlain Engineering | DNF |
| 18.9.1988 | 1000 km Spa | 106 | GC288 | Barberio / Veninata / Sebastiani | Kelmar Racing Cars | 13th |
| 18.9.1988 | 1000 km Spa | 109 | GC288 | Randaccio / Taverna / Gellini | Kelmar Racing Cars | 15th |
| 18.9.1988 | 1000 km Spa | 125 | GC85 | Oudet / Ferrarin / Witmeur | Patrick Oudet Vetir Racing | DNF |
| 18.9.1988 | 1000 km Spa | 198 | GC286 | Hynes / Cohen-Olivar / Musetti | Roy Baker Racing | DNF |
| 24.9.1988 | BRDC C2 Brands Hatch | 55 | TS86 | Pool / Flux | Plumtree Racing | 1st |