1985 Monaco Grand Prix

There was a big accident on the pit straight involving Nelson Piquet and Riccardo Patrese, this accident was to affect the outcome of the race. The accident happened right after Piquet and Patrese crossed the start/finish line, Piquet attempted to pass Patrese, the two cars touched and Patrese crashed violently and collected Piquet, whose Brabham's rear suspension broke during the collision before Patrese collected Piquet. The cars then spun into the run-off at the first corner at Sainte Devote; both drivers were unhurt. Patrese's gearbox dropped oil onto the track which took out Niki Lauda who while sliding off on the oil managed to avoid hitting anything, he stalled his engine and was out on the spot. The crash also nearly took out the closely following Jacques Laffite and Teo Fabi, while race leader Michele Alboreto also slid wide on the oil; Alboreto's off handed the lead to Alain Prost. Alboreto drove a hard race; he eventually caught and passed Prost 3 laps later, but was re-passed by Prost after he punctured his left rear tyre at the first corner where Piquet and Patrese crashed. This dropped him to 4th behind Andrea de Cesaris, Elio de Angelis and Prost; he caught and passed his compatriots but could not catch Prost; who despite a leaking turbo wastegate, had kept the gap wide enough for Alboreto to be unable to catch him in the remaining laps.

Drivers' Championship standings Pos Driver Points 1 Elio de Angelis 20 2 Alain Prost 18 3 Michele Alboreto 18 4 Patrick Tambay 10 5 Ayrton Senna 9 Source: [2]

Constructors' Championship standings Pos Constructor Points 1 Lotus-Renault 29 2 Ferrari 22 3 McLaren-TAG 21 4 Renault 12 5 Arrows-BMW 6 Source: [2]

• Note: Only the top five positions are included for both sets of standings.