| 1991 · 1991 24 Hours of Le Mans | 6 | 18 | Category 2 | Mazdaspeed | Stefan Johansson · David Kennedy · Maurizio Sandro SalaStefan Johansson David Kennedy Maurizio Sandro Sala | Mazda 787B | Mazda R26B 2.6L quad-rotary | 355 | Wikipedia contributors · CC BY-SA 4.0 |
| 1991 · FIA SWC - Fuji Film Cup, Suzuka Circuit | 6 | 18 | 2 | Mazdaspeed | David Kennedy · Maurizio Sala | Mazda 787B | — | 71 | WSPR historical record |
| 1991 · FIA SWC - Castrol BRDC Empire Trophy, Silverstone | 11 | 18 | | Mazdaspeed | Maurizio Sala · David Kennedy | Mazda 787 | — | 74 | WSPR historical record |
| 1991 · FIA SWC - ADAC Sportwagen WM, Nürburgring | 5 | 18 | | Mazdaspeed | Maurizio Sala · David Kennedy | Mazda 787 | — | 89 | WSPR historical record |
| 1991 · FIA Sportscar World Championship in Autopolis | 10 | 58 | 2 | Mazdaspeed | David Kennedy · Takashi Yorino | Mazda 787B | — | 84 | WSPR historical record |
| 1990 · 1990 24 Hours of Le Mans | DNF | 201 | IMSA GTP | Mazdaspeed | Stefan Johansson · David Kennedy · Pierre DieudonnéStefan Johansson David Kennedy Pierre Dieudonné | Mazda 787 | Mazda R26B 2.6L quad-rotary | 148 | Wikipedia contributors · CC BY-SA 4.0 |
| 1989 · 1989 24 Hours of Le Mans | 7 | 201 | IMSA GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné · Chris HodgettsDavid Kennedy Pierre Dieudonné Chris Hodgetts | Mazda 767 B | Mazda 13J-M 2.6L quad-rotary | 369 | Wikipedia contributors · CC BY-SA 4.0 |
| 1989 · Coupe de Dijon, Dijon-Prenios | 10 | 201 | 1. GTP | Mazdaspeed | Pierre Dieudonné · David Kennedy | Mazda 767B | — | 121 | WSPR historical record |
| 1989 · Brands Hatch Trophy | 12 | 201 | 1. GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné | Mazda 767B | — | 108 | WSPR historical record |
| 1989 · Int. ADAC Trophäe, Nürburgring | 13 | 201 | 1. GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné | Mazda 767B | — | 101 | WSPR historical record |
| 1989 · Wheatcroft Gold Cup, Donington | not_classified | 201 | GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné | Mazda 767B | — | 111 | WSPR historical record |
| 1989 · Coupes de Spa, Spa-Francorchamps | 9 | 201 | 1. GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné | Mazda 767B | — | 67 | WSPR historical record |
| 1989 · Trofeo Hermanos Rodriguez, Ciudad de Mexico, Mexico | 13 | 201 | 1. GTP | Mazdaspeed | David Kennedy · Pierre Dieudonné | Mazda 767B | — | 105 | WSPR historical record |
| 1988 · 1988 24 Hours of Le Mans | 15 | 203 | IMSA GTP | Mazdaspeed | Yojiro Terada · David Kennedy · Pierre DieudonnéYojiro Terada David Kennedy Pierre Dieudonné | Mazda 757 | Mazda 13G 1962cc triple-rotary | 337 | Wikipedia contributors · CC BY-SA 4.0 |
| 1988 · Fuji 1000 Kilometres, Fuji Speedway | 14 | 202 | 1. GTP | Mazdaspeed | Yojiro Terada · David Kennedy | Mazda 767 | — | 209 | WSPR historical record |
| 1988 · Autosport 1000 Kilometres, Silverstone | 9 | 201 | 1. GTP | Mazdaspeed | David Kennedy · Yojiro Terada · Yoshimi Katayama | Mazda 767 | — | 186 | WSPR historical record |
| 1987 · 1987 24 Hours of Le Mans | 7 | 202 | IMSA GTP | Mazdaspeed | Pierre Dieudonné · David Kennedy · Mark GalvinPierre Dieudonné David Kennedy Mark Galvin | Mazda 757 | Mazda 13G 1962cc triple-rotary | 319 | Wikipedia contributors · CC BY-SA 4.0 |
| 1987 · Mount Fuji 1000 Kilometres | 7 | 202 | 1. GTP | Mazdaspeed | David Kennedy · Takashi Yorino | Mazda 757 | — | 213 | WSPR historical record |
| 1986 · 1986 24 Hours of Le Mans | DNF | 170 | IMSA GTP | Mazdaspeed | Pierre Dieudonné · David Kennedy · Mark GalvinPierre Dieudonné David Kennedy Mark Galvin | Mazda 757 | Mazda 13G 1962cc triple-rotary | 137 | Wikipedia contributors · CC BY-SA 4.0 |
| 1986 · Kouros' 1000 km Silverstone | 19 | 30 | 2. GTP | Mazdaspeed | Takashi Yorino · David Kennedy | Mazda 757 | — | 174 | WSPR historical record |
| 1986 · Kouros 1000 Kilometres Spa | retired | 89 | C2 | Martin Schanche | Martin Schanche · Torgyar Kleppe · David Kennedy | Argo JM19 Zakspeed Turb | — | | WSPR historical record |
| 1986 · Mount Fuji 1000 Kilometres, Fuji Speedway | 15 | 171 | GTP | Mazdaspeed | Takashi Yorino · David Kennedy | Mazda 757 | — | 212 | WSPR historical record |
| 1985 · 1985 24 Hours of Le Mans | 19 | 86 | Gr.C2 | Mazdaspeed | David Kennedy · Jean-Michel Martin · Philippe MartinDavid Kennedy Jean-Michel Martin Philippe Martin | Mazda 737C | Mazda 13B 1308cc twin-rotary | 283 | Wikipedia contributors · CC BY-SA 4.0 |
| 1985 · Silverstone 1000 Kilometres | 16 | 86 | 6. C2 | Mazdaspeed | David Kennedy · Yojiro Terada | Mazda 737C | — | 173 | WSPR historical record |
| 1985 · Fuji 1000 Kilometres | retired | 86 | C2 | Mazdaspeed | David Kennedy · Yojiro Terada | Mazda 737C | — | 8 | WSPR historical record |
| 1984 · 1984 24 Hours of Le Mans | 15 | 87 | Gr.C2 | Mazdaspeed | David Kennedy · Jean-Michel Martin · Philippe MartinDavid Kennedy Jean-Michel Martin Philippe Martin | Mazda 727C | Mazda 13B 1308cc twin-rotary | 286 | Wikipedia contributors · CC BY-SA 4.0 |
| 1984 · Mount Fuji 1000 Kilometres | 21 | 86 | 8. C2 | Mazdaspeed | Yojiro Terada · David Kennedy | Mazda 727C | — | 165 | WSPR historical record |
| 1983 · 1983 24 Hours of Le Mans | DNF | 43 | Gr.C | Peer Racing (private entrant) | François Migault · David Kennedy · Martin BirraneFrançois Migault David Kennedy Martin Birrane | Ford C100 | Cosworth DFL 3.3L V8 | 16 | Wikipedia contributors · CC BY-SA 4.0 |
| 1982 · Shell Oils 1000 Kilometres, Brands Hatch | 20 | 28 | 4. Gr.6 | Chevron Racing Cars | David Kennedy · Gerry Amato · Martin Birrane | Chevron B36B Ford | — | 164 | WSPR historical record |
| 1981 · Flying Tigers 1000, Brands Hatch | 12 | 43 | 2. GT | Richard Cleare Racing | David Kennedy · Richard Cleare | Porsche 934 | — | 209 | WSPR historical record |
| 1981 · 1000 km Nürburgring | 49 | 34 | 5. Gr.5 | Richard Cleare Racing | Richard Cleare · David Kennedy | Porsche 934 | — | 11 | WSPR historical record |