Portuguese GP: Alain Prost, McLaren MP4-4 Honda, and Ayrton Senna, McLaren MP4-4 Honda, draw level at the start. They lead Ivan Capelli, March 881 Judd, Ivan Capelli, March 881 Judd, Gerhard Berger, Ferrari F1/87-88C, Nigel Mansell, Williams FW12 Judd, Mauricio Gugelmin, March 881 Judd, Michele Alboreto, Ferrari F1/87-88C.
Alain Prost, McLaren MP4-4 Honda, and Ayrton Senna, McLaren MP4-4 Honda, draw level at the start. They lead Ivan Capelli, March 881 Judd, Ivan Capelli, March 881 Judd, Gerhard Berger, Ferrari F1/87-88C, Nigel Mansell, Williams FW12 Judd, Mauricio Gugelmin, March 881 Judd, Michele Alboreto, Ferrari F1/87-88C.