| 1999 · 1999 24 Hours of Le Mans | DNF | 10 | LM-GTP | Audi Sport UK | James Weaver · Andy Wallace · Perry McCarthyJames Weaver Andy Wallace Perry McCarthy | Audi R8C | Audi 3.6L V8 twin turbo | 198 | Wikipedia contributors · CC BY-SA 4.0 |
| 1998 · 1998 24 Hours of Le Mans | DNF | 8 | LM-P1 | Porsche AG Joest Racing | James Weaver · Pierre-Henri Raphanel · David MurryJames Weaver Pierre-Henri Raphanel David Murry | Porsche LMP1-98 | Porsche 935/76 3.2L F6 twin turbo | 218 | Wikipedia contributors · CC BY-SA 4.0 |
| 1998 · 1998 24 Hours of Le Mans | DNA | 46 | LM-GT1 | Panoz Motorsports | James Weaver · Perry McCarthyJames Weaver Perry McCarthy | Panoz Esperante GTR-1 | Roush-Ford 6.0L V8 | | Wikipedia contributors · CC BY-SA 4.0 |
| 1997 · 1997 24 Hours of Le Mans | DNF | 54 | LM-GT1 | David Price Racing | Andy Wallace · James Weaver · Butch LeitzingerAndy Wallace James Weaver Butch Leitzinger | Panoz Esperante GTR-1 | Ford 6.0L V8 | 236 | Wikipedia contributors · CC BY-SA 4.0 |
| 1996 · 1996 24 Hours of Le Mans | 9 | 33 | LM-GT1 | Gulf Racing | Ray Bellm · James Weaver · JJ LehtoRay Bellm James Weaver JJ Lehto | McLaren F1 GTR LM | BMW S70/3 6.1L V12 | 323 | Wikipedia contributors · CC BY-SA 4.0 |
| 1995 · 1995 24 Hours of Le Mans | DNF | 57 | LM-GT1 | PC Automotive Jaguar | Richard Piper · Tiff Needell · James WeaverRichard Piper Tiff Needell James Weaver | Jaguar XJ220 C | Jaguar JV6 3.5L V6 twin turbo | 135 | Wikipedia contributors · CC BY-SA 4.0 |
| 1991 · 1991 24 Hours of Le Mans | NC | 53 | Category 2 | Salamin Primagaz Team Schuppan | Hurley Haywood · James Weaver · Wayne TaylorHurley Haywood James Weaver Wayne Taylor | Porsche 962C | Porsche 935 3.0L F6 twin turbo | 316 | Wikipedia contributors · CC BY-SA 4.0 |
| 1990 · 1990 24 Hours of Le Mans | DNF | 43 | Gr.C1 | Italya Sport Richard Lloyd Racing | Manuel Reuter · JJ Lehto · James WeaverManuel Reuter JJ Lehto James Weaver | Porsche 962C GTi | Porsche 935/82 3.0L F6 twin turbo | 181 | Wikipedia contributors · CC BY-SA 4.0 |
| 1990 · FIA WSPC - Trofeo Caracciolo, Monza | 17 | 14 | | Richard Lloyd Racing | Manuel Reuter · James Weaver | Porsche 962C GTi | — | 70 | WSPR historical record |
| 1990 · FIA WSPC - British Empire Trophy, Silverstone | 11 | 14 | | Richard Lloyd Racing | James Weaver · Manuel Reuter | Porsche 962C GTi | — | 96 | WSPR historical record |
| 1989 · 1989 24 Hours of Le Mans | DNF | 14 | Gr.C1 | Richard Lloyd Racing | Derek Bell · James Weaver · Tiff NeedellDerek Bell James Weaver Tiff Needell | Porsche 962C GTi | Porsche 935/82 3.0L F6 twin turbo | 339 | Wikipedia contributors · CC BY-SA 4.0 |
| 1989 · Brands Hatch Trophy | retired | 15 | C1 | Richard Lloyd Racing | James Weaver · David Hunt | Porsche 962C GTi | — | 38 | WSPR historical record |
| 1988 · 1988 24 Hours of Le Mans | DNS | 61 | Gr.C1 | Team Sauber Mercedes | Jochen Mass · Mauro Baldi · James WeaverJochen Mass Mauro Baldi James Weaver | Sauber C9 | Mercedes-Benz M117 5.0L V8 twin turbo | | Wikipedia contributors · CC BY-SA 4.0 |
| 1988 · 800 km Jerez | 4 | 14 | C1 | Richard Lloyd Racing | James Weaver · Derek Bell | Porsche 962C GTi | — | 184 | WSPR historical record |
| 1988 · 800 km Jerez | entry_only | 15 | C1 | Richard Lloyd Racing | Bell · James Weaver | Porsche 962C | — | | WSPR historical record |
| 1988 · 360 km Jarama | did_not_start | 14 | C1 | Richard Lloyd Racing | James Weaver · Derek Bell | Porsche 962C GTi | — | | WSPR historical record |
| 1988 · 1000 km Monza | entry_only | 15 | C1 | RLR | Bell · James Weaver | Porsche 962C | — | | WSPR historical record |
| 1988 · Autosport 1000 Kilometres, Silverstone | 3 | 62 | 3. C1 | Team Sauber Mercedes | Mauro Baldi · James Weaver | Sauber-Mercedes C9/88 | — | 208 | WSPR historical record |
| 1988 · Grand Prix ČSSR, Automodrom Brno | 4 | 61 | 4. C1 | Sauber Mercedes | Mauro Baldi · James Weaver · DNS - Jean-Louis Schlesser / | Sauber-Mercedes C9/88 | — | 67 | WSPR historical record |
| 1987 · 1987 24 Hours of Le Mans | DNF | 15 | Gr.C1 | Britten-Lloyd Racing Liqui Moly Equipe | Jonathan Palmer · James Weaver · Price CobbJonathan Palmer James Weaver Price Cobb | Porsche 962C GTi | Porsche 935/79 2.8L F6 twin turbo | 112 | Wikipedia contributors · CC BY-SA 4.0 |
| 1987 · 1987 24 Hours of Le Mans | DNA | 20 | Gr.C1 | Tiga Team | Chico Serra · Tim Lee-Davey · James WeaverChico Serra Tim Lee-Davey James Weaver | Tiga GC87 | Cosworth DFL 3.3 L V8 turbo | | Wikipedia contributors · CC BY-SA 4.0 |
| 1987 · Mount Fuji 1000 Kilometres | 10 | 100 | 8. C1 | Trust Racing Team | Vern Schuppan · Keiichi Suzuki · James Weaver | Porsche 962C | — | 209 | WSPR historical record |
| 1987 · Autoglass 1000 Kilometres Silverstone | 9 | 21 | 1. GTP | RC Racing | James Weaver · Andrew Gilbert-Scott · Richard Cleare | March 85G Porsche | — | 187 | WSPR historical record |
| 1986 · 1986 24 Hours of Le Mans | 16 | 32 | Gr.C1 | NISMO | Takao Wada · Masahiro Hasemi · James WeaverTakao Wada Masahiro Hasemi James Weaver | Nissan R85V | Nissan VG30ET 3.0L V6 twin turbo | 285 | Wikipedia contributors · CC BY-SA 4.0 |
| 1986 · Kouros' 1000 km Silverstone | 4 | 14 | 4. C1 | Richard Lloyd Racing | James Weaver · Klaus Niedzwiedz | Porsche 956 GTi | — | 206 | WSPR historical record |
| 1986 · 100 Meilen von Nürnberg, Norisring | 5 | 10 | 5. C1 | Porsche Kremer Racing | James Weaver | Porsche 962C | — | 78 | WSPR historical record |
| 1986 · Shell Gemini 1000 km Brands Hatch | retired | 21 | GTP | R. Cleare Racing | James Weaver · Lionel Robert · Richard Cleare | March 85G Porsche | — | 46 | WSPR historical record |
| 1986 · ADAC Kouros 1000 km Nürburgring | retired | 10 | C1 | Porsche Kremer Racing | James Weaver · Alessandro Nannini | Porsche 962C | — | 21 | WSPR historical record |
| 1986 · Kouros 1000 Kilometres Spa | 10 | 14 | 0. C1 | Liqui Moly Equipe | Mauro Baldi · James Weaver | Porsche 956 GTi | — | 135 | WSPR historical record |
| 1985 · 1985 24 Hours of Le Mans | 2 | 14 | Gr.C1 | Canon Racing Richard Lloyd Racing GTi Engineering | Jonathan Palmer · James Weaver · Richard LloydJonathan Palmer James Weaver Richard Lloyd | Porsche 956 GTi | Porsche 935/79 2.6L F6 twin turbo | 371 | Wikipedia contributors · CC BY-SA 4.0 |
| 1985 · Malaysia 800 Selangor, Shah Alam | 3 | 69 | 3. C1 | Rothmans Porsche | Vern Schuppan · James Weaver | Porsche 956 | — | 208 | WSPR historical record |
| 1985 · Silverstone 1000 Kilometres | source_section_running_in_practice | 69 | C1 | Richard Lloyd Racing | Vern Schuppan · James Weaver | Porsche 956 | — | | WSPR historical record |
| 1985 · Silverstone 1000 Kilometres | retired | 69 | C1 | Richard Lloyd Racing with P | Vern Schuppan · James Weaver | Porsche 956 | — | 150 | WSPR historical record |
| 1985 · 1000 km Spa | retired | 66 | C1 | EMKA Production Ltd. | Tiff Needell · James Weaver · Steve O'Rourke | EMKA C84/1 Aston Marti | — | 19 | WSPR historical record |
| 1985 · Fuji 1000 Kilometres | 10 | 37 | 0. C1 | Team Ikuzawa | Tiff Needell · James Weaver | Tom's 85C Toyota | — | 57 | WSPR historical record |
| 1984 · Grand Prix International 1000 Kilometres, Silverstone | retired | 74 | C2 | Scorpion Racing Services | Eddie Arundel · James Weaver · John Jellinek | Arundel C200 Ford | — | 34 | WSPR historical record |
| 1984 · Mount Fuji 1000 Kilometres | retired | 37 | C1 | Team Ikuzawa | Tiff Needell · James Weaver · Geoff Lees | Tom's 84C Toyota (Ikuzawa 8 | — | 113 | WSPR historical record |
| 1983 · 1983 24 Hours of Le Mans | 18 | 61 | Gr.C Jnr | Mazdaspeed | Steve Soper · Jeff Allam · James WeaverSteve Soper Jeff Allam James Weaver | Mazda 717C | Mazda 13B 1308cc twin-rotary | 268 | Wikipedia contributors · CC BY-SA 4.0 |
| 1982 · The Pace Petroleum 6 Hours, Silverstone | entry_only | 93 | GT | Spike Anderson | Eddie Jordan · James Weaver · David Hunt | Datsun 260Z | — | | WSPR historical record |