Jack Refenning (USA)
1980
3 February 1980 - Daytona 24 Hours - World Championship for Makes
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
24 | Porsche 934 | 930 670 0168 | GTO | Jack Refenning (USA)/Ray Mummery (USA)/Ren Tilton (USA) | American Racing Team (USA) | 37th | 15th | 26th | 337 laps - Accident |
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
60 | Porsche 911 Carrera RSR | 911 560 9122 | GTO | Bill Ferran (USA)/Rusty Bond (USA)/Jack Refenning (USA) | Bill Ferran | 29th | 11th | 30th | 172 laps |