United States GP: Pierluigi Martini, Minardi M189 Ford, leads Andrea de Cesaris, Dallara BMS-190 Ford, Jean Alesi, Tyrrell 018 Ford, and Ayrton Senna, McLaren MP4-5B Honda.
Pierluigi Martini, Minardi M189 Ford, leads Andrea de Cesaris, Dallara BMS-190 Ford, Jean Alesi, Tyrrell 018 Ford, and Ayrton Senna, McLaren MP4-5B Honda.