| Year | Series | Result | Team/Car | Notes | 
 
  | 2023 | 6h Mondello Park Fiesta | . | . | . | 
    
 
 
  | 2009 | GP3 | . | Status Grand Prix | Management role | 
    
 
 
  | 2006-09 | A1GP | . | Team Ireland | Management role | 
    
 
 
  | 1991 | FIA Sportscar World Championship | 19th | Mazda 787B / 787 | . | 
    
 
 
  | . | All Japan Endurance Championship | 18th | Mazda 787B / 787 | . | 
 
  | . | 24h LeMans | 6th | Mazda 787B | . | 
 
  | . | Nurburgring 430km | 5th | Mazda 787 | . | 
 
  | . | Autopolis 430km | 10th | Mazda 787B | . | 
 
  | . | Suzuka 430km | 6th | Mazda 787B | . | 
 
  | . | Silverstone 430km | 11th | Mazda 787 | . | 
 
  | 1990 | All Japan Endurance Championship | 31st | Mazda 787 / 767B | . | 
    
 
 
  | . | 24h LeMans | ret | Mazda 787 | . | 
 
  | 1989 | All Japan Endurance Championship | 38th | Mazda 767B | . | 
    
 
 
  | . | 24h LeMans | 7th | Mazda 767B | . | 
 
  | . | Dijon 480km | 10th | Mazda 767B | . | 
 
  | . | Brands Hatch 480km | 12th | Mazda 767B | . | 
 
  | . | Nurburgring 480km | 13th | Mazda 767B | . | 
 
  | . | Spa 480km | 9th | Mazda 767B | . | 
 
  | . | Mexico 480km | 13th | Mazda 767B | . | 
 
  | 1988 | All Japan Endurance Championship | 27th | Mazda 767 / 757 | . | 
    
 
 
  | . | 24h LeMans | 15th | Mazda 757 | . | 
 
  | . | Fuji 1000km | 14th | Mazda 767 | . | 
 
  | . | Silverstone 1000km | 9th | Mazda 767 | . | 
 
  | 1987 | FIA World Sports-Prototype Championship | 37th | Mazda 757 | . | 
    
 
 
  | . | All Japan Endurance Championship | 12th | Mazda 757 | . | 
 
  | . | 24h LeMans | 7th | Mazda 757 | . | 
 
  | . | Fuji 1000km | 7th | Mazda 757 | . | 
 
  | 1986 | All Japan Endurance Championship | 21st | Mazda 757 | . | 
    
 
 
  | . | 24h LeMans | ret | Mazda 757 | . | 
 
  | . | Silverstone 1000km | 19th | Mazda 757 | . | 
 
  | . | Fuji 1000km | 15th | Mazda 757 | . | 
 
  | 1985 | All Japan Endurance Championship | 30th | Mazda 737C | . | 
    
 
 
  | . | 24h LeMans | 19th | Mazda 737C | . | 
 
  | . | Silverstone 1000km | 16th | Mazda 737C | . | 
 
  | 1984 | 24h LeMans | 15th | Mazda 727C | . | 
    
 
 
  | . | Fuji 1000km | 21st | Mazda 727C | . | 
 
  | 1983 | 24h LeMans | ret | Ford C100 | . | 
    
 
 
  | 1982 | Brands Hatch 1000km | 20th | Chevron B36B Ford | . | 
    
 
 
  | 1981 | CanAm | 17th | Frissbee | . | 
    
 
 
  | . | Brands Hatch 1000km | 12th | Porsche 934 | . | 
 
  | . | FIA Sportscar World Championship | 235th | Porsche 934 | . | 
 
  | 1980 | Spanish GP | ret | Shadow DN12 | Non championchip race | 
    
 
 
  | 1979 | British Aurora AFX F1 Series | 2nd | Wolf WR4 | . | 
    
 
 
  | . | Oulton Park Gold Cup | winner | Wolf WR4 | . | 
 
  | . | Race of Champions | dns | Wolf WR4 | Non championchip race | 
 
  | 1978 | British Aurora AFX F1 Series | 12th | Wolf WR3 | . | 
    
 
 
  | . | European Formula 3 | 6th | . | . | 
 
  | 1977 | European Formula 3 | . | JM1 | . | 
    
 
 
  | 1976 | British Formula Ford | champion | Crossle-Minister 30F | . | 
    
 
 
  | . | Townsend Thoresen Formula Ford 1600 | champion | Crossle-Minister 30F | . | 
 
  | . | European FF1600 | 2nd | . | . |