PORSCHE RACING HISTORYHeinz Friederichs (D)
1953
26 April 1953 - Mille Miglia - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 439 | Porsche 356 1300 | S2.0 | Heinz Friederichs (D)/Franz E Kesselstatt (D) | 88th | 32nd | 14:22:26 |
30 August 1953 - Nürburgring 1000 km - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 65 | Porsche 356 1500 | ser. S2.0 | Heinz Friederichs (D)/Horst Lauprecht (D) | Heinz Friedrichs | DNF | DQ - Assistance |