PORSCHE RACING HISTORYPorsche 910 - Chassis No. 910-028
28 May 1967 - Nürburgring 1000 km - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 910/8 | 910-028 | P+2.0 | Jo Siffert (CH)/Hans Herrmann (D) | Porsche System Engineering (D) | DNF | 3rd | 11 laps - Valve |
30 July 1967 - Brands Hatch 6 Hours - International Manufacturers Championship : Prototypes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 910 2.2 | 910-028 | P+2.0 | Jo Siffert (CH)/Bruce McLaren (NZ) | Porsche System Engineering Ltd. (D) | 3rd | 3rd | 8th | 209 laps |
13 April 1969 - Brands Hatch 6 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 24 | Porsche 910 | 910-028 | S2.0 | Digby Martland (GB)/Richard Broström (S) | P. S. McNally | 12th | 3rd | 19th | 199 laps |
1 June 1969 - Nürburgring 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 78 | Porsche 910 | 910-028 | S2.0 | Masten Gregory (USA)/Richard Broström (S) | Sportscars Switzerland (CH) | DNF | 24th | 15 laps - Engine |
29 June 1969 - Anderstorp [SP] - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 10 | Porsche 910 | 910-028 | S2.0 | Masten Gregory (USA) | Sportscars Switzerland (CH) | 5th | 1st | 20 laps |
13 July 1969 - Solituderennen Hockenheim - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 36 | Porsche 910 | 910-028 | S2.0 | Masten Gregory (USA) | Sports Cars Switzerland | 11th | 1st | 15th | 20 laps |
27 July 1969 - Zeltweg [S/P/GT] - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 37 | Porsche 910 | 910-028 | S2.0 | Richard Broström (S) |
10 August 1969 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18T | Porsche 910 | 910-028 | S2.0 | Berndt Brodner (A)/Peter Peter (A) | Elan Racing Team (A) | 15th | 7th | 23rd | 148 laps |