The 1985 Prix de l'Arc de Triomphe was a horse race held at Longchamp on Sunday 6 October 1985. It was the 64th running of the Prix de l'Arc de Triomphe.
The winner was Rainbow Quest, a four-year-old colt trained in Great Britain by Jeremy Tree. The winning jockey was Pat Eddery. Sagace finished first by a neck from Rainbow Quest with Kozana two lengths away in third. After a steward's inquiry and an objection from the rider of the runner-up, the places of the first two horses was reversed.
The winning time was 2m 29.5s.
Race details
Sponsor: Trusthouse Forte
Purse: Going: Good to firm Distance: 2,400 metres Number of runners: 15 Winner's time: 2m 29.5s
Full result
Abbreviations: shd = short-head; nk = neck
Winner's details
Further details of the winner, Rainbow Quest. Sex: Colt Foaled: 15 May 1981 Country: United States Sire: Blushing Groom; Dam: I Will Follow (Herbager) Owner: Khalid Abdullah Breeder: Alan Clore