Canadian GP: Thierry Boutsen, Benetton B188 Ford, leads Gerhard Berger, Ferrari F1/87-88C, and Alessandro Nannini, Benetton B188 Ford.
Thierry Boutsen, Benetton B188 Ford, leads Gerhard Berger, Ferrari F1/87-88C, and Alessandro Nannini, Benetton B188 Ford.