PORSCHE RACING HISTORYTsunehisa Asai (J)
1986 : Suzuka 500 km - 2nd overall : Suzuka 1000 km - 1st overall : Fuji 500 km - 3rd overall
6 April 1986 - Suzuka 500 km - All Japan Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | C | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | 2nd | 2nd | 4th | 84 laps |
4 May 1986 - All Japan Fuji 1000 km - All Japan Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | LD-1 | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | DNF | 7th | 140 laps - Accident |
20 July 1986 - Fuji 500 km - All Japan Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | LD-1 | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | 6th | 6th | 6th | 169 laps |
24 August 1986 - Suzuka 1000 km - All Japan Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | C | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | 1st | 1st | 4th | 170 laps |
5 October 1986 - Fuji 1000 km - World Sports-Prototype Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | C1 | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | 21st | 17th | 14th | 209 laps |
23 November 1986 - Fuji 500 km - All Japan Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 27 | Porsche 956 | 956-101 | LD-1 | Jiro Yoneyama (J)/Hideki Okada (J)/Tsunehisa Asai (J) | From A Racing (J) | 3rd | 3rd | 7th | 111 laps |