Round 7 of the 1986 FIA Formula One World Championship returned to the Detroit Street Circuit for the 5th Detroit Grand Prix.
Round 6 of the 1986 FIA Formula One World Championship returned to the Circuit Gilles-Villeneuve for the XXV Grand Prix du Canada.
Round 5 of the 1986 FIA Formula One World Championship returned to the Circuit de Spa-Francorchamps for the XLIV Grand Prix de Belgique.
Round 4 of the 1986 FIA Formula One World Championship returned to the Circuit de Monaco for the XLIV Grand Prix Automobile de Monaco.
Round 3 of the 1986 FIA Formula One World Championship returned to the Autodromo Dino Ferrari for the 6º Gran Premio di San Marino.
Round 2 of the 1986 FIA Formula One World Championship arrived at the Circuito de Jerez for the Gran Premio Tio Pepe de España.
Round 1 of the 1986 FIA Formula One World Championship returned to the Jacarepaguá for the 15º Grande Premio Brasil de Fórmula 1.
Round 16 of the 1985 FIA Formula One World Championship arrived at the Adelaide Street Circuit for the L Mitsubishi Australian Grand Prix.
Round 15 of the 1985 FIA Formula One World Championship returned to the Kyalami for the Southern Sun Hotels Grand Prix 1985.
Round 14 of the 1985 FIA Formula One World Championship returned to the Brands Hatch for the Shell Oils Grand Prix of Europe.