1987 Portuguese motorcycle Grand Prix

Date13 September 1987

Official nameGran Premio Marlboro de Portugal^[1]

LocationCircuito del Jarama

Course

• Permanent racing facility
• 3.404 km (2.115 mi)

  1987 Portuguese Grand Prix

Race details
Race 13 of 15 races in the 1987 Grand Prix motorcycle racing season
Date	13 September 1987
Official name	Gran Premio Marlboro de Portugal[1]
Location	Circuito del Jarama
Course	Permanent racing facility 3.404 km (2.115 mi)
500cc
Pole position Rider Randy Mamola Time 1:27.640 Fastest lap Rider Wayne Gardner Time 1:27.990 Podium First Eddie Lawson Second Randy Mamola Third Kevin Magee
250cc
Pole position Rider Juan Garriga Time 1:29.020 Fastest lap Rider Juan Garriga Time 1:30.410 Podium First Anton Mang Second Juan Garriga Third Martin Wimmer
125cc
Pole position Rider Fausto Gresini Time 1:33.120 Fastest lap Rider August Auinger Time 1:33.250 Podium First Paolo Casoli Second Domenico Brigaglia Third Lucio Pietroniro
80cc
Pole position Rider Jorge Martínez Time 1:37.020 Fastest lap Rider Unknown Podium First Jorge Martínez Second Manuel Herreros Third Gerhard Waibel

The 1987 Portuguese motorcycle Grand Prix was the thirteenth round of the 1987 Grand Prix motorcycle racing season. It took place on the weekend of 12–13 September 1987 at the Circuito Permanente Del Jarama.