PORSCHE RACING HISTORYClaude Haldi (CH)
1973 : Nürburgring 300 Km - 2nd overall : Spa 1000 km - 2nd in class : Targa Florio - 3rd overall : Nürburgring 1000 km - 3rd in class : European GT Championship Estoril - 3rd overall : Euro GT Thruxton - 2nd overall
25 March 1973 - Vallelunga 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 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 - Nürburgring 300 Km - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 115 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH) | Porsche Club Romand (CH) | 2nd | 2nd | 36th | 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 |
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 |
6 May 1973 - Spa 1000 km - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 53 | Porsche 911 Carrera RSR | 911 360 0659 | GT | Claude Haldi (CH)/Bernard Cheneviére (CH) | Porsche Club Romand (CH) | 11th | 2nd | 28th | 57 laps |
13 May 1973 - Targa Florio - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 911 Carrera RSR | 911 360 0020 R2 | S3.0 | Leo Kinnunen (FI)/Claude Haldi (CH) | Martini Racing | 3rd | 3rd | 15th | 11 laps - 7:12:42 |
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 |
2 June 1973 - European GT Championship Imola - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 92 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH) | Porsche Club Romand (CH) | 6th | 5th | 39 laps |
10 June 1973 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 911 Carrera RSR | 911 360 0588 R6 | GT3.0 | Reinhold Jöst (D)/Claude Haldi (CH) | Martini Racing Team (D) | DNF | 19th | 65 laps - fuel System |
24 June 1973 - Euro GT Nivelles - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH) | Porsche Club Romand (CH) | 4th | 4th | 54 laps |
8 July 1973 - European GT Championship Estoril - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH) | Porsche Club Romand (CH) | 3rd | 3rd | 4th | 80 laps |
15 July 1973 - DRM Diepholz - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| Porsche 911 Carrera RSR | 911 360 0659 | Div.I | Claude Haldi (CH) | 6th | 9th | 38 laps |
5 August 1973 - Euro GT Thruxton - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 29 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH) | Porsche Club Romand (CH) | 2nd | 2nd | 4th | 40 laps |
2 September 1973 - Monza 6 Hours - European Championship for Grand Touring Cars
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 911 Carrera RSR | 911 360 0659 | GT3.0 | Claude Haldi (CH)/Bernard Cheneviére (CH) | Porsche Club Romand (CH) | DNF | 7th |