PORSCHE RACING HISTORYWolfgang Seidel (D)
1959 : Targa Florio - 1st overall
24 May 1959 - Targa Florio - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 112 | Porsche 718 RSK | S1.5 | Edgar Barth (DDR)/Wolfgang Seidel (D) | Porsche KG (D) | 1st | 1st | 14 laps |
21 June 1959 - Le Mans 24 Hours - World Sports Car Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 34 | Porsche 718 RSK | 718-006 | S1.5 | Edgar Barth (DDR)/Wolfgang Seidel (D) | Porsche KG (D) | DNF | 168 laps - Gearbox |
1 August 1959 - Berlin GP - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 29 | Porsche 718 RSK | S1.5 | Wolfgang Seidel (D) | DNF | 6th |