1973 Prix de l'Arc de Triomphe

The winner was Henry Zeisel's Rheingold, an Irish-bred four-year-old colt trained in England by Barry Hills and ridden by Lester Piggott.

Ireland was represented by the four-year-olds Bonne Noel (Ebor Handicap) and Miss Therese and the three-year-olds Ragapan (runner-up in the Irish Derby), Star Appeal and Hurry Harriet.

[1] The outsiders Direct Flight and Authi disputed the early lead ahead of Unicornus, Bonne Noel, Miss Therese, Hard To Beat, Rheingold, Buoy, Balompie and Allez France.

On the turn into the straight, Authi held the advantage from Direct Flight, Rheingold and Hard To Beat, with Balompie and Buoy well-placed on the outside and Allez France making progress along the inside rail.

Allez France moved into second place and was the only horse to offer a serious challenge to the leader, but Rheingold stayed on strongly to beat the filly by two and a half lengths.