PORSCHE RACING HISTORYGerhard Holup (D)
1978 : Mugello 6 Hours - 2nd in class : Misano 6 Hours - 2nd in class
19 March 1978 - Mugello 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 934 | 930 670 0168 | GT | Edgar Dören (D)/Gerhard Holup (D) | Max Moritz (D) | 12th | 2nd | 19th | 154 laps |
22 April 1978 - Dijon 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 38 | Porsche 934 | 930 670 0168 | GT | Edgar Dören (D)/Gerhard Holup (D) | Max Moritz (D) | 16th | 7th | 13th | 119 laps |
14 May 1978 - Silverstone 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 23 | Porsche 934 | 930 670 0168 | GT | Edgar Dören (D)/Gerhard Holup (D) | Autohaus Max Moritz (D) | DNF | 19th | 55 laps - Accident |
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 46 | Porsche 934 | 930 670 0168 | T/GT+2.0 | Gerhard Holup (D)/Edgar Dören (D) | Jägermeister-Racing-Team (D) | 40th | 10th | 18th | 30 laps - DNF |
11 June 1978 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 68 | Porsche 934 | 930 670 0168 | GT+3.0 | Edgar Dören (D)/Romain Feitler (L)/Hervé Poulain (F)/Gerhard Holup (D) | Hervé Poulain | DNF | 32nd | 167 laps - Gearbox |
25 June 1978 - Misano 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 26 | Porsche 934 | 930 670 0168 | GT | Eckhard Schimpf (D)/Edgar Dören (D)/Gerhard Holup (D) | Max Moritz (D) | 8th | 2nd | 14th | 239 laps |
3 September 1978 - Vallelunga 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 934 | 930 670 0168 | Gr.5 | Edgar Dören (D)/Gerhard Holup (D) | Max Moritz (D) | 8th | 8th | 17th | 238 laps |