PORSCHE RACING HISTORYHarald Grohs (D)
1981 : Silverstone 6 Hours - 1st overall : Le Mans 24 Hours - 3rd in class : Mosport 6 Hours - 1st overall : Road America 500 Miles - 1st overall : Brands Hatch 1000 km - 3rd in class
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 51 | Porsche 935 M16 | 930 890 0013 | GTX | Rolf Stommelen (D)/Harald Grohs (D)/Howard Meister (USA) | Andial Racing/Meister Homes (USA) | 24th | 9th | 1st | 500 laps - Electrics/Fire |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 935 M16 | 930 890 0013 | GTX | Howard Meister (USA)/Harald Grohs (D)/Rolf Stommelen (D) | Andial/Meister Racing (USA) | 4th | 4th | 2nd | 233 laps |
10 May 1981 - Silverstone 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 22 | Porsche 935 J | 000 00016 | Gr.5 | Harald Grohs (D)/Walter Röhrl (D)/Dieter Schornstein (D) | Vegla Racing Team (D) | 1st | 1st | 10th | 206 laps |
24 May 1981 - Nürburgring 1000 Km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 20 | Porsche 935 J | 000 00016 | Gr.5 | Dieter Schornstein (D)/Harald Grohs (D)/Walter Röhrl (D) | Vegla Racing Team (D) | 7th | 4th | 12th | 16 laps |
14 June 1981 - Le Mans 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 60 | Porsche 935 J | 000 00016 | Gr.5 | Dieter Schornstein (D)/Harald Grohs (D)/Götz von Tschirnhaus (D) | Vegla Racing Team (D) | 10th | 3rd | 7th | 321 laps |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 935 M16 | 930 890 0013 | GTX | Rolf Stommelen (D)/Harald Grohs (D) | Andial Meister Racing (USA) | 1st | 1st | 1st | 229 laps |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 935 M16 | 930 890 0013 | GTX | Rolf Stommelen (D)/Harald Grohs (D) | Andial Meister Racing (USA) | 1st | 1st | 2nd | 125 laps |
27 September 1981 - Brands Hatch 1000 km - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 29 | Porsche 935 J | 000 00016 | Gr.5 | Harald Grohs (D)/Dieter Schornstein (D) | Vegla Racing Team-Aachen (D) | 6th | 3rd | 7th | 221 laps |