Year

1990

Date	Circuit	Category	Winner
11.03.1990	Phoenix Street Circuit	Formula 1	Ayrton Senna
17.03.1990	Sebring International Raceway	Sports cars	Derek Daly Bob Earl
10.06.1990	Circuit Gilles Villeneuve	Formula 1	Ayrton Senna
21.10.1990	Suzuka Circuit	Formula 1	Nelson Piquet

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