PORSCHE RACING HISTORYMasten Gregory (USA)
1969 : Daytona 24 Hours - 2nd in class : Anderstorp [SP] - 1st in class : Solituderennen Hockenheim - 1st in class : Zeltweg 1000 km - 1st in class
2 February 1969 - Daytona 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 910 | 910-004 | S2.0 | Masten Gregory (USA)/Richard Broström (S) | Sportscars Unlimited Switzerland (CH) | 15th | 2nd | 14th | 544 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 |
| 36 | Porsche 908/02 | 908/02-010 | P3.0 | Masten Gregory (USA) | DSQ | Pushed by Broström |
10 August 1969 - Zeltweg 1000 km - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 11 | Porsche 908/02 | 908/02-001 | P3.0 | Masten Gregory (USA)/Richard Broström (S) | Sport Cars Brostrom | 4th | 1st | 7th | 168 laps |