held Boutsen up for just over 3 laps allowing his team leader to close the gap. Boutsen eventually managed to pass the Benetton (shaking his fist in disgust soon after), while Pirro then moved over and let Nannini through. Boutsen then proceeded to drive steadily away from his Benetton teammate with Nannini unable to respond. After two hours, the race was declared finished with 70 laps having been completed out of the scheduled 81. Boutsen won his second wet race of the season followed by Nannini. Patrese finished third with Nakajima fourth having a good last race for Lotus before joining Tyrrell in 1990. Patrese said in the post-race driver interviews that in the conditions he was only driving for third place knowing that with Mansell failing to finish, this would have allowed him to pass Mansell on points and finish a career best third in the Drivers' Championship. Pirro came home fifth in his last race for Benetton and Martini eventually came sixth, 3 laps down. The remaining survivors were the March of Maurício Gugelmin and the Brabham of Stefano Modena, both finishing outside the points. Race classification Final championship standings after the race Drivers' Championship standings Constructors' Championship standings References Grand Prix Australian Grand Prix Australian Grand Prix Motorsport in Adelaide Australian Grand Prix