PORSCHE RACING HISTORYRobert Kirby (USA)
1979 : Riverside 6 Hours - 3rd in class
4 February 1979 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 911 Carrera RSR | 911 360 0601 | GTO | Robert Kirby (USA)/John Hotchkis (USA)/Howard Meister (USA) | Casablanca Fan Co. | 36th | 14th | 37th | 328 laps - DNF |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 914/4 | GTU | Robert Kirby (USA)/Wayne Baker (USA)/Tom Winters (USA) | Personalized Porsche (USA) | 20th | 4th | 61st | 188 laps |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 23 | Porsche 911 Carrera RSR | GTO | Jim Cook (USA)/Robert Kirby (USA) | Cerwin-Vega | 11th | 3rd | 19th | 176 laps |
10 June 1979 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 73 | Porsche 935 | 930 770 0959 | IMSA+2.5 | Robert Kirby (USA)/Bob Harmon (USA)/John Hotchkis (USA) | Dick Barbour - Wynn's International (USA) | 9th | 4th | 39th | 276 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 935 | 930 770 0959 | TA-II | Tuck Thomas (USA)/Norm Ridgely (CDN)/Robert Kirby (USA) | Stanton/Barbour (USA) | 13th | 8th | 19th | 155 laps |