The 1988 800 km of Jerez was the opening round of the 1988 World Sportscar Championship season. It took place at Circuito Permanente de Jerez, Spain on March 6, 1988.
Class winners are in bold. Cars failing to complete 75% of the winner's distance are marked as Not Classified (NC).
| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
|---|---|---|---|---|---|---|---|
| Engine | |||||||
| 1 | C1 | 61 |  Team Sauber Mercedes |  Jean-Louis Schlesser Jochen Mass Mauro Baldi | Sauber C9 | 190 | |
| Mercedes-Benz M117 5.0L Turbo V8 | |||||||
| 2 | C1 | 3 |  Silk Cut Jaguar | John Watson Andy Wallace John Nielsen | Jaguar XJR-9 | 190 | |
| Jaguar 7.0L V12 | |||||||
| 3 | C1 | 7 | Joest Racing | Klaus Ludwig Bob Wollek | Porsche 962C | 188 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 4 | C1 | 14 | Richard Lloyd Racing | James Weaver Derek Bell | Porsche 962C GTi | 184 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 5 | C1 | 8 | Joest Racing | Frank Jelinski "John Winter" | Porsche 962C | 183 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 6 | C1 | 5 | Brun Motorsport | Manuel Reuter Uwe Schäfer | Porsche 962C | 183 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 7 | C2 | 111 | Spice Engineering | Ray Bellm Gordon Spice | Spice SE88C | 180 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 8 | C2 | 121 | Cosmik GP Motorsport | Philippe de Henning Costas Los | Spice SE87C | 178 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 9 | C1 | 40 | Swiss Team Salamin | Enzo Calderari Antoine Salamin | Porsche 962C | 174 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 10 | C2 | 107 | Chamberlain Engineering | Claude Ballot-Léna Jean-Louis Ricci | Spice SE88C | 173 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 11 | C2 | 117 |  Team Lucky Strike Schanche | Martin Schanche Will Hoy | Argo JM19C | 172 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 12 | C1 | 4 | Brun Motorsport |  Oscar Larrauri Massimo Sigala | Porsche 962C | 167 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 13 | C2 | 123 | Charles Ivey Racing | Wayne Taylor Tim Harvey | Tiga GC287 | 167 | |
| Porsche Type-935 2.8L Turbo Flat-6 | |||||||
| 14 | C2 | 109 | Kelmar Racing | Ranieri Randaccio Paolo Ciafardoni Maurizio Gellini | Tiga GC85 | 165 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 15 | C2 | 106 | Kelmar Racing | Pasquale Barberio Vito Veninata | Tiga GC288 | 133 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 16 NC | C2 | 115 | ADA Engineering | Steve Kempton Dudley Wood Johnny Herbert | ADA 03 | 131 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 17 DNF | C1 | 1 | Silk Cut Jaguar | Martin Brundle Eddie Cheever | Jaguar XJR-9 | 139 | |
| Jaguar 7.0L V12 | |||||||
| 18 DNF | C1 | 2 | Silk Cut Jaguar |  Jan LammersJohnny Dumfries | Jaguar XJR-9 | 132 | |
| Jaguar 7.0L V12 | |||||||
| 19 DNF | C2 | 103 | Spice Engineering | Almo Coppelli Thorkild Thyrring | Spice SE88C | 131 | |
| Ford Cosworth DFL 3.3L V8 | |||||||
| 20 DNF | C2 | 178 | Automobiles Louis Descartes | Sylvain Bouley Louis Descartes Gérard Tremblay | ALD C2 | 130 | |
| BMW M80 3.5L I6 | |||||||
| 21 DNF | C1 | 6 | Brun Motorsport | Walter Brun Jesús Pareja | Porsche 962C | 44 | |
| Porsche Type-935 3.0L Turbo Flat-6 | |||||||
| 22 DNF | C2 | 101 | Dollop Racing | Nicola Marozzo Jean-Pierre Frey | Argo JM19B | 44 | |
| Motori Moderni 2.0L Turbo V6 | |||||||
| 23 DNF | C2 | 127 | Chamberlain Engineering | Graham Duxbury Nick Adams | Spice SE86C | 15 | |
| Hart 418T 1.8L Turbo I4 | |||||||
| DNS | C2 | 172 | Automobiles Louis Descartes | Pierre Yver Bruno Sotty | ALD C2 | - | |
| BMW M80 3.5L I6 | |||||||
| DNS | C2 | 188 | Ark Racing | Max Payne Max Cohen-Olivar | Ceekar 83J | ? | - |
| Ford Cosworth DFL 3.3L V8 |