PORSCHE RACING HISTORYToine Hezemans (NL)
1978 : Daytona 24 Hours - 1st overall : Mugello 6 Hours - 1st overall : Dijon 6 Hours - 2nd overall : Nürburgring 1000 km - 1st overall : Watkins Glen 6 Hours - 1st overall : Vallelunga 6 Hours - 2nd overall : Vallelunga 6 Hours - 3rd overall : Norisring Trophäe - 2nd overall
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 99 | Porsche 935/77A | 930 890 0011 | GTX | Rolf Stommelen (D)/Toine Hezemans (NL)/Peter Gregg (USA) | Brumos Porsche (USA) | 1st | 1st | 4th | 680 laps |
19 March 1978 - Mugello 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 12 | Porsche 935/77A | 930 890 0015 | Gr.5 | Toine Hezemans (NL)/Hans Heyer (D)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 1st | 1st | 2nd | 176 laps |
19 March 1978 - Mugello 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 935/77A | 930 890 0011 | Gr.5 | John Fitzpatrick (GB)/Klaus Ludwig (D)/Toine Hezemans (NL) | Gelo Racing Team (D) | 9th | 9th | 1st | 157 laps |
22 April 1978 - Dijon 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935/77A | 930 890 0011 | Gr.5 | Toine Hezemans (NL)/Hans Heyer (D)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 2nd | 2nd | 3rd | 166 laps |
22 April 1978 - Dijon 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0015 | Gr.5 | Klaus Ludwig (D)/Toine Hezemans (NL) | Gelo Racing Team (D) | DNF | 1st | 101 laps - Driveshaft |
14 May 1978 - Silverstone 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935/77A | 930 890 0011 | Gr.5 | Toine Hezemans (NL)/Hans Heyer (D)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 16th | 10th | 5th | 178 laps - Oil Leak |
14 May 1978 - Silverstone 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0015 | Gr.5 | John Fitzpatrick (GB)/Toine Hezemans (NL) | Gelo Racing Team (D) | DNF | 2nd | 95 laps - Accident |
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 935/77A | 930 890 0020 | Gr.5+2.0 | Klaus Ludwig (D)/Hans Heyer (D)/Toine Hezemans (NL) | Weisberg-Gelo-Team (D) | 1st | 1st | 5th | 44 laps |
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 935/77A | 930 890 0015 | Gr.5+2.0 | Klaus Ludwig (D)/Toine Hezemans (NL)/John Fitzpatrick (GB) | Weisberg-Gelo-Team (D) | DNF | 1st | 22 laps - Head Gasket |
28 May 1978 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935/77A | 930 890 0011 | Gr.5+2.0 | John Fitzpatrick (GB)/Hans Heyer (D)/Toine Hezemans (NL) | Weisberg-Gelo-Team (D) | DNF | 4th | 7 laps - DNF |
11 June 1978 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 935/77A | 930 890 0011 | Gr5+2.0 | John Fitzpatrick (GB)/Toine Hezemans (NL) | Weisberg Gelo Team (D) | DNF | 11th | 19 laps - Piston |
25 June 1978 - Misano 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0020 | Gr.5 | Klaus Ludwig (D)/Toine Hezemans (NL)/John Fitzpatrick (GB) | Gelo Racing Team (D) | DNF | 2nd | 137 laps - DSQ Oil Leak |
8 July 1978 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 935/77A | 930 890 0011 | Gr.5 | Toine Hezemans (NL)/John Fitzpatrick (GB)/Peter Gregg (USA) | Gelo Racing Team (D) | 1st | 1st | 2nd | 146 laps |
3 September 1978 - Vallelunga 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935/77A | 930 890 0011 | Gr.5 | Toine Hezemans (NL)/Hans Heyer (D)/John Fitzpatrick (GB) | Gelo Racing Team (D) | 2nd | 2nd | 3rd | 267 laps |
3 September 1978 - Vallelunga 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935/77A | 930 890 0020 | Gr.5 | Klaus Ludwig (D)/John Fitzpatrick (GB)/Toine Hezemans (NL) | Gelo Racing Team (D) | 3rd | 3rd | 2nd | 266 laps |
17 September 1978 - Norisring Trophäe - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0015 | Gr.5 | Toine Hezemans (NL) | Weisberg-Gelo-Team (D) | 2nd | 2nd | 1st | 62 laps |