| 1981 · 1981 24 Hours of Le Mans | DNF | 25 | Gr.6 S +2.0 | Jean Rondeau | Jean Ragnotti · Jean-Louis LafosseJean Ragnotti Jean-Louis Lafosse | Rondeau M379C | Cosworth DFV 3.0 L V8 | 28 | Wikipedia contributors · CC BY-SA 4.0 |
| 1980 · 1980 24 Hours of Le Mans | DNF | 41 | Gr.5 SP 2.0+ | Kremer Racing Team Malardeau | Ted Field · Danny Ongais · Jean-Louis LafosseTed Field Danny Ongais Jean-Louis Lafosse | Porsche 935-K3/80 | Porsche 930 3.0L F6 twin-turbo | 89 | Wikipedia contributors · CC BY-SA 4.0 |
| 1979 · 1979 24 Hours of Le Mans | DNF | 37 | Gr.5 SP | Gelo Sportswear International | John Fitzpatrick · Harald Grohs · Jean-Louis LafosseJohn Fitzpatrick Harald Grohs Jean-Louis Lafosse | Porsche 935/77A | Porsche 3.0L F6 turbo | 196 | Wikipedia contributors · CC BY-SA 4.0 |
| 1979 · Dijon 6 Hours | 8 | 11 | 5. Gr.5 | ASA Cachia | Jean-Louis Lafosse · Michel Leclére | Porsche 935 | — | 224 | WSPR historical record |
| 1978 · 1978 24 Hours of Le Mans | DNF | 89 | IMSA GTX | Pozzi Thompson JMS Racing | Claude Ballot-Léna · Jean-Louis LafosseClaude Ballot-Léna Jean-Louis Lafosse | Ferrari 512 BB | Ferrari 4.9L F12 | 218 | Wikipedia contributors · CC BY-SA 4.0 |
| 1978 · 6 h Mugello | 15 | 16 | 1. Gr.5 | ASA Cachia | Claude Ballot-Léna · Jean-Louis Lafosse | Porsche 935 | — | 141 | WSPR historical record |
| 1978 · 6 h Dijon | 5 | 9 | 5. Gr.5 | ASA Cachia | Jean-Louis Lafosse · Claude Ballot-Léna | Porsche 935 | — | 162 | WSPR historical record |
| 1978 · 6 h Silverstone | retired | 16 | Gr.5 | ASA Cachia | Jean-Louis Lafosse · Michel Leclére | Porsche 935 | — | 24 | WSPR historical record |
| 1977 · 500 kms de I'ACF, Dijon-Prenois | retired | 20 | S2.0 | Racing Organisation Corse | Jean-Louis Lafosse · Jean-Pierre Jaussaud - DND | Chevron B36 ROC | — | 1 | WSPR historical record |
| 1977 · Kosset 6 Hours, Silverstone | 13 | 12 | 4. GT | JMS Racing | Claude Ballot-Léna · Jean-Louis Lafosse · Philippe Dagoreau | Porsche 934 | — | 194 | WSPR historical record |
| 1977 · Hessen Preis, Hockenheim | 2 | 7 | 2. Gr.5 | JMS Racing | Claude Ballot-Léna · Jean-Louis Lafosse | Porsche 935 | — | 159 | WSPR historical record |
| 1976 · 1976 24 Hours of Le Mans | 2 | 10 | Gp.6 3.0 | Grand Touring Cars Inc. | Jean-Louis Lafosse · François MigaultJean-Louis Lafosse François Migault | Mirage M8 | Cosworth DFV 3.0L V8 | 338 | Wikipedia contributors · CC BY-SA 4.0 |
| 1976 · 500 km des ACF Dijon-Prenois | 7 | 34 | 1. S2.0 | Racing Organisation Course | Jean-Louis Lafosse · Jean-Pierre Jaussaud | Chevron B36 ROC | — | 140 | WSPR historical record |
| 1976 · ACF 6 Hours Dijon | 14 | 51 | 2. Gr.5 | William Vollery/Jean-Pierre | William Vollery · Jean-Pierre Aeschlimann · Jean-Louis Lafosse | Porsche Carrera RSR | — | 266 | WSPR historical record |
| 1975 · 1975 24 Hours of Le Mans | 2 | 5 | S 3.0 | Automobiles Ligier Gitanes | Jean-Louis Lafosse · Guy ChasseuilJean-Louis Lafosse Guy Chasseuil | Ligier JS2 | Cosworth DFV 3.0L V8 | 336 | Wikipedia contributors · CC BY-SA 4.0 |
| 1975 · 1000 km Mugello (150 laps) | did_not_start | 4 | S3.0 | Equipe Gitanes - Ligier | Jean-Louis Lafosse · François Migault | Ligier JS2 Ford | — | | WSPR historical record |
| 1975 · 800 km Dijon | retired | 3 | S3.0 | Automobiles Ligier Gitanes | Jean-Pierre Jarier · Jean-Pierre Beltoise - DND · Jean-Louis Lafosse | Ligier JS2 Ford | — | 36 | WSPR historical record |
| 1975 · Spa 1000 Kilometres, Spa-Francorchamps | 12 | 7 | 4. S3.0 | Automobiles Ligier Gitanes | François Migault · Jean-Louis Lafosse | Ligier JS2 Ford | — | 45 | WSPR historical record |
| 1974 · 1974 24 Hours of Le Mans | DNF | 18 | S 3.0 | North American Racing Team | Jean-Louis LafosseJean-Louis Lafosse Giancarlo Gagliardi | Dino 308 GT4 LM | Ferrari 3.0L V8 | 30 | Wikipedia contributors · CC BY-SA 4.0 |
| 1974 · 1000 km Monza | retired | 21 | S2.0 | Abarth-Osella | Vittorio Brambilla · Jean-Louis Lafosse | Abarth-Osella PA2 | — | | WSPR historical record |
| 1974 · 1000 km Imola | retired | 32 | S2.0 | Abarth-Osella | Jean-Louis Lafosse · Derek Bell · DNS - Vittorio Venturi | Abarth-Osella PA2 | — | 36 | WSPR historical record |
| 1973 · 1973 24 Hours of Le Mans | DNF | 7 | S 3.0 | Équipe Gitanes Cigarettes de France | Jean-Louis Lafosse · Reine WisellJean-Louis Lafosse Reine Wisell Baron Hughes de Fierlandt | Lola T282 | Ford Cosworth DFV 3.0L V8 | 164 | Wikipedia contributors · CC BY-SA 4.0 |
| 1973 · 24 h Daytona | retired | 12 | S3.0 | Scuderia Filipinetti | Reine Wisell · Jean-Louis Lafosse · Hughes de Fierlant | Lola T282 Ford | — | 281 | WSPR historical record |
| 1973 · Watkins Glen 6 Hours | entry_only | 22 | S3.0 | Scuderia Filipinetti | Reine Wisell · Jean-Louis Lafosse | Lola T282 Ford | — | | WSPR historical record |
| 1973 · Vallelunga 6 Hours | 6 | 25 | 6. S3.0 | Scuderia Filipinetti | Reine Wisell · Jean-Louis Lafosse | Lola T282 Ford | — | 268 | WSPR historical record |
| 1973 · Dijon 1000 Kilometres | 6 | 10 | 6. S3.0 | Scuderia Filipinetti | Reine Wisell · Jean-Louis Lafosse | Lola T282 Ford | — | 290 | WSPR historical record |
| 1973 · Monza 1000 Kilometres | entry_only | 8 | S3.0 | Scuderia Filipinetti | Reine Wisell · Jean-Louis Lafosse | Lola T282 Ford | — | | WSPR historical record |
| 1973 · Spa 1000 Kilometres | did_not_start | 8 | S3.0 | Scuderia Filipinetti | Jean-Louis Lafosse · Hughes de Fierlant | Lola T282 Ford | — | | WSPR historical record |
| 1973 · ADAC 1000 Kilometres, Nürburgring | entry_only | 26 | S2.0 | Scuderia Filipinetti | Jean-Louis Lafosse · Reine Wisell | Lola T292 Chevrolet | — | | WSPR historical record |
| 1972 · 1972 24 Hours of Le Mans | 7 | 34 | GTS 5.0 | Scuderia Filipinetti | Mike Parkes · Jean-Louis LafosseMike Parkes Jean-Louis Lafosse Jean-Jacques Cochet | Ferrari 365 GTB/4 | Ferrari 4.4L V12 | 302 | Wikipedia contributors · CC BY-SA 4.0 |
| 1972 · Buenos Aires 1000 Kilometres | not_classified | 42 | S2.0 | Ecurie Esmerelda | Georges Dumoing · Jean-Louis Lafosse | Lola T212 Ford | — | 103 | WSPR historical record |
| 1972 · Austrian 1000 Kilometres, Zeltweg | entry_only | 30 | S2.0 | Scuderia Filipinetti | Jean-Louis Lafosse · Chris Craft | Lola T290 Ford | — | | WSPR historical record |
| 1972 · Austrian 1000 Kilometres, Zeltweg | 7 | 28 | 3. S2.0 | Ecurie Bonnier | Jean-Louis Lafosse · Hughes de Fierlant | Lola T290 Ford | — | 154 | WSPR historical record |