PORSCHE RACING HISTORYCK5
1983
10 April 1983 - Monza 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 19 | Porsche CK5 | CK5-01 | C | Tony Dron (GB)/Richard Cleare (GB)/Margie Smith-Haas (USA) | Richard Cleare Racing | DNF | 10th | 32 laps - Oil Leak |
8 May 1983 - Silverstone 1000 km - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 42 | Porsche CK5 | CK5-01 | C | Richard Cleare (GB)/Tony Dron (GB) | Richard Cleare Racing | 6th | 6th | 13th | 197 laps |
19 June 1983 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 22 | Porsche CK5 | CK5-02 | C | Derek Warwick (GB)/Patrick Gaillard (F)/Frank Jelinski (D) | Porsche Kremer Racing (D) | DNF | 14th | 76 laps - Head Gasket | |
| 42 | Porsche CK5 | CK5-01 | C | Richard Cleare (GB)/Tony Dron (GB)/Richard Jones (GB) | Richard Cleare Racing | DNF | 24th | 8 laps - Turbocharger |