PORSCHE RACING HISTORY908/03
1973
4 February 1973 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 57 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I)/Paul Blancpain (USA) | Reinhold Jöst (D) | DNF | 47th | 244 laps - Gearbox |
25 March 1973 - Vallelunga 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 12 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I) | Reinhold Jöst (D) | 5th | 5th | 9th | 272 laps |
| 31 | Porsche 908/03 | 908/03-013 | S3.0 | Claude Haldi (CH)/Juan Fernandez (E) | Porsche Club Romand (CH) | 9th | 7th | 16th | 229 laps |
1 April 1973 - Interserie Nürburgring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 908/03 | 908/03-008 | INT | Reinhold Jöst (D) | Reinhold Jöst (D) | 3rd | 3rd | 5th | 14 laps |
15 April 1973 - Dijon 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 908/03 | 908/03-013 | S3.0 | Claude Haldi (CH)/Juan Fernandez (E) | Porsche Club Romand (CH) | 8th | 8th | 13th | 271 laps |
| 7 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I) | Reinhold Jöst (D) | DNF | 10th | 131 laps - Engine |
25 April 1973 - Monza 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 14 | Porsche 908/03 | 908/03-013 | S3.0 | Claude Haldi (CH)/Juan Fernandez (E) | Porsche Club Romand (CH) | DNF | 17th | 103 laps - Engine | |
| 12 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I) | Reinhold Jöst (D) | DNF | 11th | 1 lap - Engine |
27 May 1973 - Nürburgring 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 908/03 | 908/03-013 | S3.0 | Claude Haldi (CH)/Bernard Cheneviére (CH) | Porsche Club Romand (CH) | 4th | 3rd | 21st | 40 laps |
| 10 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D)/Mario Casoni (I) | Reinhold Jöst (D) | DNS | Accident in Practice |
10 June 1973 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 908/03 | 908/03-013 | S3.0 | Juan Fernandez (E)/Bernard Cheneviére (CH)/Francisco Torredemer (E) | Escuderia Montjuïch (E) | 5th | 5th | 21st | 320 laps |
24 June 1973 - Interserie Norisring - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 908/03 | 908/03-008 | S3.0 | Reinhold Jöst (D) | Reinhold Jöst (D) | 3rd | 1st | 7th | 137 laps |
| 34 | Porsche 908/03 | 908/03-013 | S3.0 | Bernard Cheneviére (CH) | Porsche Cllub Romand (CH) | 11th | 3rd | 13th |
19 August 1973 - Interserie Misano - Interserie
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 908/03 | 908/03-008 | Reinhold Jöst (D) | ATE (D) | 3rd | 5th | 78 laps |
3 November 1973 - Kyalami 9 Hours - South African Springbok Trophy Series
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 908/03 | 908/03-008 | Gr.5 | Reinhold Jöst (D)/Herbert Müller (CH) | R. Jost Racing (D) | 1st | 1st | 5th | 360 laps |