| Race details | |||
|---|---|---|---|
| Race 14 of 16 in the 1986 Formula One season | |||
| Date | September 21, 1986 | ||
| Official name | 5o Grande Prémio de Portugal | ||
| Location | Autódromo do Estoril, Estoril, Portugal | ||
| Course | Permanent Racing Facility | ||
| Course length | 4.35 km (2.702 mi) | ||
| Distance | 70 laps, 304.5 km (189.14 mi) | ||
| Weather | Dry | ||
| Pole position | |||
| Driver | Lotus-Renault | ||
| Time | 1:16.673 | ||
| Fastest lap | |||
| Driver |
|
Williams-Honda | |
| Time | 1:20.943 on lap 53 | ||
| Podium | |||
| First | Williams-Honda | ||
| Second | McLaren-TAG | ||
| Third | Williams-Honda | ||
The 1986 Portuguese Grand Prix was a Formula One motor race held at Estoril on September 21, 1986.