| Date | Place |
Division |
Start |
Finish | Owner |
# |
Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 8 1953 | Sebring International Raceway | FIA World Sports Car Championship | 16 | William Wellenberg Jr. | 42 | 1950 MG TD | 132 | running | |||
| Feb 15 1964 | Daytona International Speedway | SCCA | 10 | 31 | Genie 64/Buick | 58 | running | 0 | |||
| May 23 1965 | Bridgehampton Raceway | SCCA US Road Racing Championship | 30 | Huffaker | 79 | Genie - Ford | 25 | did not finish | |||
| Sep 19 1965 | Bridgehampton Raceway | FIA World Sports Car Championship | 13 | William M. Wonder | 5 | Genie/Ford | did not finish | ||||
| Feb 6 1966 | Daytona International Speedway | FIA World Sports Car Championship | 27 | 48 | Bill Wonder | 88 | Ford GT40 GT/103 | 178 | wheel | ||
| May 22 1966 | Bridgehampton Raceway | SCCA US Road Racing Championship | 15 | William Wonder | 11 | Ford GT40 GT-103 | 64 | 100 | running | ||
| Feb 5 1967 | Daytona International Speedway | FIA World Sports Car Championship | 24 | 8 | William Wonder Inc. | 20 | Ford GT40 GT/103 | 573 | running | ||
| Feb 4 1968 | Daytona International Speedway | SCCA Trans Am/FIA World Sports Car | 25 | 58 | William Wonder Inc. | 37 | Ford GT40 GT/103 | 42 | head gasket | ||
| Sep 14 1969 | Bridgehampton Raceway | SCCA Can-Am | 15 | 12 | Bill Wonder | 8 | McLaren M1C Ford | 60 | running | ||
| Sep 28 1969 | Michigan International Speedway | SCCA Can-Am | 25 | 17 | Bill Wonder | 8 | McLaren M1C Ford | 53 | 200 | running | |
| Feb 1 1970 | Daytona International Speedway | FIA World Sports Car Championship | 41 | 8 | William Wonder Inc. | 18 | Ford GT40 GT/103 | 579 | running | ||
| Jun 14 1970 | Mosport International Raceway | SCCA Can-Am | 24 | 25 | William M. Wonder | 84 | McLaren M1C Chevrolet | 12 | black-flagged | ||
| Jun 13 1971 | Mosport International Raceway | SCCA Can-Am | 22 | 16 | Bill Wonder | 15 | McLaren M8C 70-03/Chevrolet | 46 | running | ||
| Jun 27 1971 | Circuit Mont-Tremblant | SCCA Can-Am | 23 | 14 | Bill Wonder | 15 | McLaren M8C 70-03/Chevrolet | 57 | running | 0 | |
| Jul 11 1971 | Road Atlanta | SCCA Can-Am | 22 | 20 | Bill Wonder | 15 | McLaren M8C 70-03/Chevrolet | 27 | oil leak | 0 | |
| Jun 11 1972 | Mosport International Raceway | SCCA Can-Am | 18 | 11 | Bill Wonder | 15 | McLaren M8C 70-03/Chevrolet | 65 | running | 0 | |
| Jul 9 1972 | Road Atlanta | SCCA Can-Am | 21 | 15 | Bill Wonder | 15 | McLaren M8C 70-03/Chevrolet | 57 | running | ||
| Aug 27 1972 | Road America | SCCA Can-Am | 23 | 15 | Bill Wonder | 15 | McLaren M8C 70-03Chevrolet | 42 | 1,000 | running | 0 |
| Jun 10 1973 | Mosport International Raceway | SCCA Can-Am | 18 | 11 | W. M. Wonder Inc. | 15 | McLaren M8C 70-03/Chevrolet | 67 | running | 0 | |
| Aug 24 1975 | Road America | Formula Libre | 15 | McLaren M8R | 32 | 500 | running | 0 | |||
| Apr 16 1978 | Road Atlanta | IMSA GT | 35 | 27 | William Wonder Inc. | 57 | DeKon Monza 1002/Chevrolet | 24 | did not finish |