| Date | Place |
Division |
Start |
Finish | Owner |
# |
Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1 1970 | Daytona International Speedway | FIA World Sports Car Championship | 53 | 27 | Walle Enterprises | 71 | TVR Vixen Ford | 364 | running | ||
| May 29 1972 | Lime Rock Park | IMSA GT | 16 | Bob Speakman | 41 | Datsun 240Z | 117 | 100 | running | ||
| Jun 10 1973 | Pocono International Raceway | IMSA GT | 13 | Z & W Mazda | 90 | Mazda | 147 | running | |||
| Dec 1 1974 | Daytona International Speedway | IMSA GT | 14 | Bob Speakman | 54 | Datsun 240Z | 58 | running | 0 | ||
| Mar 22 1975 | Sebring International Raceway | IMSA GT | 40 | 18 | Bob Speakman | 84 | Datsun 240Z | 197 | running | ||
| Jun 1 1975 | Mid-Ohio Sports Car Course | IMSA GT | 21 | 16 | Datsun 240Z | 38 | running | ||||
| Jun 14 1975 | Mosport International Raceway | IMSA GT | 23 | 19 | Datsun 240Z | 36 | running | ||||
| Jul 20 1975 | Mid-America Raceways | IMSA GT | 23 | 19 | Datsun 240Z | 25 | running | ||||
| Jul 20 1975 | Mid-America Raceways | IMSA GT | 21 | 23 | Datsun 240Z | 20 | did not finish | ||||
| Aug 9 1975 | Talladega Superspeedway | IMSA GT | 26 | 14 | Datsun Z | 26 | running | ||||
| Aug 24 1975 | Mid-Ohio Sports Car Course | IMSA GT | 31 | 14 | Datsun Z | 192 | running | ||||
| Nov 30 1975 | Daytona International Speedway | IMSA GT | 33 | 22 | Speakman Racing | 84 | Datsun 240Z | 54 | running | ||
| Feb 1 1976 | Daytona International Speedway | IMSA/WSCC GT | 61 | 58 | Arthur Mollin | 53 | Volvo 142S | 121 | did not finish | ||
| Jul 4 1976 | Daytona International Speedway | IMSA GT | 36 | 40 | Datsun Z | 4 | did not finish | ||||
| Aug 15 1976 | Pocono International Raceway | IMSA GT | 18 | 13 | Datsun Z | 33 | running | ||||
| Aug 29 1976 | Mid-Ohio Sports Car Course | IMSA GT | 31 | 12 | Datsun Z | 103 | running | ||||
| Nov 28 1976 | Daytona International Speedway | IMSA GT | 66 | 55 | Datsun 240Z | 11 | did not finish | ||||
| May 15 1977 | Mid-America Raceways | IMSA GT | 29 | 13 | 84 | Datsun 240Z | 31 | running | |||
| May 30 1977 | Lime Rock Park | IMSA GT | 28 | 29 | 84 | Datsun 240Z | 52 | running | |||
| Jul 24 1977 | Hallett Motor Racing Circuit | IMSA GTU | 13 | 6 | 84 | Datsun 240Z | 43 | running | |||
| Aug 14 1977 | Pocono International Raceway | IMSA GT | 19 | 18 | 84 | Datsun 240Z | 31 | running | |||
| Sep 5 1977 | Road Atlanta | IMSA GTU | 8 | 7 | 84 | Datsun 240Z | 39 | running | |||
| Nov 26 1977 | Daytona International Speedway | IMSA GT | 52 | 57 | 84 | Datsun 240Z | 5 | did not finish | |||
| Feb 5 1978 | Daytona International Speedway | IMSA GT/World Sports Car Championship | 56 | 16 | Bondurant Racing School | 84 | Datsun 260Z | 577 | running | ||
| Mar 18 1978 | Sebring International Raceway | IMSA GT | 32 | 45 | Worldparts | 84 | Datsun 260Z | 98 | mechanical | ||
| Apr 16 1978 | Road Atlanta | IMSA GTU | 4 | 13 | 84 | Datsun Z | 24 | running | |||
| May 29 1978 | Lime Rock Park | IMSA GTU | 8 | 14 | 84 | Datsun Z | 36 | did not finish | |||
| Jul 4 1978 | Daytona International Speedway | IMSA GT | 38 | 41 | 84 | Datsun Z | 35 | did not finish | |||
| Aug 27 1978 | Mid-Ohio Sports Car Course | IMSA GT | 32 | 15 | 84 | Datsun Z | 94 | running | |||
| Sep 4 1978 | Road Atlanta | IMSA GTU | 21 | 22 | 84 | Datsun Z | 19 | did not finish | |||
| Nov 26 1978 | Daytona International Speedway | IMSA GT | 45 | 47 | 84 | Datsun Z | 22 | did not finish | |||
| Mar 17 1979 | Sebring International Raceway | IMSA GT | 39 | 46 | John E. Hulen | 85 | Porsche 914/6 | 82 | did not finish | ||
| May 28 1979 | Lime Rock Park | IMSA GTU | 11 | 7 | 84 | Datsun 240Z | 48 | running | |||
| Jul 4 1979 | Daytona International Speedway | IMSA GT | 33 | 19 | 84 | Datsun Z | 55 | running | |||
| Sep 23 1979 | Road Atlanta | IMSA GTU | 14 | 9 | 84 | Datsun Z | 30 | running | |||
| Nov 25 1979 | Daytona International Speedway | IMSA GT | 62 | 40 | 63 | Mazda RX-7 | 31 | did not finish | |||
| Nov 30 1980 | Daytona International Speedway | IMSA GT | 57 | 54 | 16 | Mazda RX-7 | 16 | did not finish | |||
| Feb 1 1981 | Daytona International Speedway | IMSA GT/World Sports Car Championship | 66 | 67 | Alfred Cosentino | 49 | Mazda RX-7 | 12 | did not finish | ||
| Mar 21 1981 | Sebring International Raceway | IMSA GT/World Sports Car Championship | 44 | 16 | Faza Squadra | 49 | Mazda RX-7 | 190 | running | ||
| Apr 12 1981 | Road Atlanta | IMSA GTU | 14 | 20 | 84 | Datsun Z | 23 | running | |||
| May 25 1981 | Lime Rock Park | IMSA GTU | 14 | 16 | 84 | Datsun Z | 43 | running | |||
| Jul 4 1981 | Daytona International Speedway | IMSA GT | 27 | 11 | 81 | Datsun Z | 55 | running | |||
| Jul 12 1981 | Watkins Glen International | FIA World Sports Car Championship | 28 | 26 | 74 | Porsche 911 | 8 | suspension | |||
| Sep 27 1981 | Pocono International Raceway | IMSA GT | 31 | 20 | 4 | Mazda RX-7 | 124 | running | |||
| Nov 29 1981 | Daytona International Speedway | IMSA GT | 58 | 24 | 49 | Mazda RX-7 | 55 | running | |||
| Sep 12 1982 | Road Atlanta | IMSA GT | 39 | 19 | 81 | Datsun Z | 107 | running | |||
| Sep 26 1982 | Pocono International Raceway | IMSA GT | 33 | 18 | 81 | Datsun Z | 149 | running | |||
| Nov 28 1982 | Daytona International Speedway | IMSA GT | 60 | 54 | 81 | Datsun Z | 29 | did not finish | |||
| Feb 6 1983 | Daytona International Speedway | IMSA GT | 46 | 58 | John Hulen | 64 | Porsche Carrera RSR | 118 | electrical | ||
| May 15 1983 | Charlotte Motor Speedway | IMSA GT | 32 | 19 | 81 | Datsun Z | 114 | running | |||
| Jul 4 1983 | Daytona International Speedway | IMSA GT | 37 | 22 | 81 | Datsun Z | 55 | running | |||
| Sep 11 1983 | Pocono International Raceway | IMSA GT | 27 | 38 | Speakman Racing | 81 | Datsun Z | 45 | did not finish | ||
| Nov 27 1983 | Daytona International Speedway | IMSA GT | 48 | 41 | 81 | Datsun Z | 70 | running | |||
| Jul 8 1984 | Watkins Glen International | IMSA GT | 49 | 24 | 81 | Datsun Z | 150 | running | |||
| Sep 9 1984 | Pocono International Raceway | IMSA GT | 35 | 37 | Speakman Racing | 81 | Datsun Z | 53 | did not finish | ||
| Nov 25 1984 | Daytona International Speedway | IMSA GT | 71 | 22 | 81 | Datsun ZX | 77 | running | |||
| May 18 1985 | Charlotte Motor Speedway | IMSA GTO/GTU | 24 | 22 | 8 | Nissan 280Z | 59 | did not finish | |||
| Jun 8 1985 | Mid-Ohio Sports Car Course | IMSA GTO/GTU | 23 | 30 | Speakman Racing | 91 | Nissan 280Z | 35 | did not finish | ||
| Dec 1 1985 | Daytona International Speedway | IMSA GT | 66 | 45 | 87 | Nissan 280Z | 47 | did not finish | |||
| Mar 21 1986 | Sebring International Raceway | IMSA Firestone Firehawk | 81 | 48 | 81 | Nissan 200SX | 98 | 0 | running | ||
| May 31 1986 | Road Atlanta | IMSA Firestone Firehawk | 28 | 20 | 81 | Nissan 200SX | 84 | 200 | running | ||
| Jun 14 1986 | Watkins Glen International | IMSA Firestone Firehawk | 59 | 30 | 84 | Nissan 200SX | 492 | 200 | did not finish | ||
| Sep 7 1986 | Road America | IMSA Firestone Firehawk | 57 | 46 | 81 | Nissan 200SX | 102 | 0 | running | ||
| Sep 20 1986 | Watkins Glen International | IMSA Firestone Firehawk | 70 | 54 | 81 | Nissan 200SX | 61 | 0 | running | ||
| Feb 4 1990 | Daytona International Speedway | IMSA GT | 56 | 39 | Racers' Cafe | 81 | Datsun 240Z | 231 | 1,000 | suspension |