| 2010 | 24 Hours of Le Mans | LMP2 | 37 | Gérard Welter | WR LMP2008 | P. Salini/S. Salini/T. Gommendy | 23 | 8 | Finished |
| 2006 | 24 Hours of Le Mans | LMP2 | 30 | Gérard Welter | WR LMP04 | P. Roussel/F. Hauchard/J. Briché | — | — | DNF |
| 2005 | 24 Hours of Le Mans | LMP2 | 23 | Gérard Welter | WR LMP04 | J. Bouvet/R. Julien/S. Boulay | — | — | DNF |
| 2004 | 24 Hours of Le Mans | LMP2 | 36 | Gérard Welter | WR LM2004 | T. Gommendy/J. Bouvet/B. Brière | — | — | DNF |
| 2003 | 24 Hours of Le Mans | LMP675 | 25 | Gérard Welter | WR LMP02 | B. Brière/J. de Fournoux/S. Daoudi | — | — | DNF |
| 2002 | 24 Hours of Le Mans | LMP675 | 25 | Gérard Welter | WR LM2001 | J. de Fournoux/S. Daoudi/J. Bouvet | 20 | 2 | Finished |
| 2001 | 24 Hours of Le Mans | LMP675 | 30 | Gérard Welter | WR LMP01 | S. Daoudi/Y. Terada/J. de Fournoux | 19 | 2 | Finished |
| 2000 | 24 Hours of Le Mans | LMP675 | 35 | Gérard Welter | WR LMP | X. Pompidou/S. Daoudi/J. Bouvet | — | — | DNF |
| 1996 | 24 Hours of Le Mans | LMP2 | 14 | Welter Racing | WR LM96 | P. Gonin/P. Petit/M. Rostan | — | — | DNF |
| 1996 | 24 Hours of Le Mans | LMP2 | 15 | Welter Racing | WR LM95/6 | W. David/S. Enjolras/A. Trévisiol | — | — | DNF |
| 1995 | 24 Hours of Le Mans | LMP2 | 9 | Welter Racing | WR LM94/5 | W. David/J. Bouvet/R. Balandras | — | — | DNF |
| 1995 | 24 Hours of Le Mans | LMP2 | 8 | Welter Racing | WR LM94 | P. Gonin/P. Petit/M. Rostan | — | — | DNF |
| 1994 | 24 Hours of Le Mans | LMP2 | 21 | Welter Racing | WR LM93 | P. Gonin/P. Petit | — | — | DNF |
| 1994 | 24 Hours of Le Mans | LMP2 | 22 | Welter Racing | WR LM94 | H. Regout/J. Yvon/J. Libert | — | — | DNF |
| 1993 | 24 Hours of Le Mans | Cat.3 | 33 | Welter Racing | WR LM92/93 | P. Gonin/B. Santal/A. Lamouille | 24 | 1 | Finished |
| 1992 | 24 Hours of Le Mans | Cat.4 | 58 | Welter Racing | WR 905 Spyder | P. Gonin/D. Artzet/P. Petit | — | — | DNF |
| 1989 | 24 Hours of Le Mans | Gr.C1 | 52 | WM Secateva | WM P489 | J. Raulet/P. Gache/P. Pessiot | — | — | DNF |
| 1988 | 24 Hours of Le Mans | Gr.C1 | 51 | WM Secateva | WM P88 | R. Dorchy/J. Raulet/C. Haldi | — | — | DNF |
| 1988 | 24 Hours of Le Mans | Gr.C1 | 52 | WM Secateva | WM P87 | P. Pessiot/J. Raulet/C. Haldi | — | — | DNF |
| 1987 | 24 Hours of Le Mans | Gr.C1 | 51 | WM Secateva | WM P86 | J. Raulet/F. Migault/P. Pessiot | — | — | DNF |
| 1987 | 24 Hours of Le Mans | Gr.C1 | 52 | WM Secateva | WM P87 | R. Dorchy/P. Gache/D. Delestre | — | — | DNF |
| 1986 | 24 Hours of Le Mans | Gr.C2 | 100 | WM Secateva | WM P85 | R. Dorchy/C. Haldi/P. Pessiot | 12 | 3 | Finished |
| 1986 | 24 Hours of Le Mans | Gr.C1 | 41 | WM Secateva | WM P85 | J. Raulet/M. Pignard/F. Migault | — | — | DNF |
| 1985 | 24 Hours of Le Mans | Gr.C1 | 42 | WM Secateva | WM P83B | M. Pignard/J. Raulet/J. Rondeau | 17 | 13 | Finished |
| 1985 | 24 Hours of Le Mans | Gr.C1 | 41 | WM Secateva | WM P83B | P. Pessiot/D. Fornage/Panic Barberot | — | — | DSQ |
| 1985 | 24 Hours of Le Mans | Gr.C1 | 43 | WM Secateva | WM P83B | R. Dorchy/J. Andruet/C. Haldi | — | — | DNF |
| 1984 | 24 Hours of Le Mans | Gr.C1 | 23 | WM Secateva | WM P83B | R. Dorchy/A. Couderc/G. Patté | — | — | DNF |
| 1984 | 24 Hours of Le Mans | Gr.C1 | 24 | WM Secateva | WM P83B | J. Raulet/M. Pignard/P. Pessiot | — | — | DNF |
| 1983 | 24 Hours of Le Mans | Gr.C | 10 | WM Secateva | WM P83 | R. Dorchy/A. Couderc/P. Fabre | 16 | 12 | Finished |
| 1983 | 24 Hours of Le Mans | Gr.C | 9 | WM Secateva | WM P83 | J. Raulet/M. Pignard/D. Theys | — | — | DNF |
| 1982 | 24 Hours of Le Mans | Gr.C | 9 | WM Esso | WM P82 | D. Theys/M. Pignard/J. Raulet | — | — | DNF |
| 1982 | 24 Hours of Le Mans | Gr.C | 10 | WM Esso | WM P82 | R. Dorchy/G. Fréquelin/A. Couderc | — | — | DNF |
| 1981 | 24 Hours of Le Mans | GTP | 4 | WM AEREM | WM P79/80 | D. Morin/C. Mendez/X. Mathiot | 13 | 2 | Finished |
| 1981 | 24 Hours of Le Mans | Gr.C | 83 | WM AEREM | WM P81 | Max Mamers/J. Raulet | — | — | DNF |
| 1981 | 24 Hours of Le Mans | GTP | 5 | WM AEREM | WM P79/80 | G. Fréquelin/R. Dorchy/X. Mathiot | — | — | DNF |
| 1981 | 24 Hours of Le Mans | Gr.C | 82 | WM AEREM | WM P81 | T. Boutsen/S. Saulnier/M. Pignard | — | — | DNF |
| 1980 | 24 Hours of Le Mans | GTP | 5 | WM Esso | WM P79/80 | G. Fréquelin/R. Dorchy | 4 | 2 | Finished |
| 1980 | 24 Hours of Le Mans | GTP | 6 | WM Esso | WM P79/80 | Max Mamers/J. Raulet | 11 | 4 | Finished |
| 1980 | 24 Hours of Le Mans | GTP | 7 | WM Esso | WM P79/80 | S. Saulnier/J. Bousquet/D. Morin | — | — | DNF |
| 1979 | 24 Hours of Le Mans | GTP | 52 | WM AEREM | WM P79 | J. Raulet/Max Mamers | 14 | 1 | Finished |
| 1979 | 24 Hours of Le Mans | GTP | 51 | WM AEREM | WM P79 | R. Dorchy/D. Morin | — | — | DNF |
| 1979 | 24 Hours of Le Mans | GTP | 53 | WM AEREM | WM P79 | M. Pignard/J. Coulon/S. Saulnier | — | — | DNF |
| 1978 | 24 Hours of Le Mans | GTP | 78 | WM AEREM | WM P78 | X. Mathiot/M. Sourd/C. Debias | — | — | DNF |
| 1978 | 24 Hours of Le Mans | GTP | 76 | WM AEREM | WM P76 | C. Dacremont/M. Hoepfner | — | — | DNF |
| 1978 | 24 Hours of Le Mans | GTP | 77 | WM AEREM | WM P77 | J. Raulet/M. Mamers | — | — | DNF |
| 1977 | 24 Hours of Le Mans | GTP | 86 | WM AEREM | WM P76 | M. Mamers/J. Raulet | 15 | 2 | Finished |
| 1977 | 24 Hours of Le Mans | GTP | 85 | WM AEREM | WM P77 | M. Sourd/X. Mathiot | — | — | DSQ |