Canadian GP
Nigel Mansell, Williams FW11 Honda, leads Ayrton Senna, Lotus 98T Renault, Nelson Piquet, Williams FW11 Honda, Alain Prost, McLaren MP4-2C TAG, René Arnoux, Ligier JS27 Renault, Keke Rosberg, McLaren MP4-2C TAG, Gerhard Berger, Benetton B186 BMW, Riccardo Patrese, Brabham BT55 BMW, Jacques Laffite, Ligier JS27 Renault.