American Post is a brown horse with a white star bred in the United Kingdom by his owner Khalid Abdullah's Juddmonte Farm.
As a breeding stallion, his other offspring included Pennekamp, Glorosia, Peter Davies (Racing Post Trophy) and Matiara (Poule d'Essai des Pouliches).
Ridden as on his debut by Olivier Peslier he turned into the straight in fourth place, took the lead 200 metres from the finish and won by two lengths from Dealer Choice.
[9] Criquette Head-Maarek later explained the improvement in the colt's behaviour at the start compared to his unruly attitude at Longchamp: "I gave a carrot to a handler at the stalls and American Post followed it into his berth".
[10] American Post began his second season in the Listed Prix Omnium II over 1600 metres at Saint-Cloud Racecourse on 31 March and started odds-on favourite against four opponents.
[14] After five consecutive victories, American Post, with Hughes in the saddle, started odds-on favourite for the Group One Poule d'Essai des Poulains at Longchamp on 16 May.
Diamond Green, Antonius Pius and Newton were again in opposition whilst the other three runners were Byron (Mill Reef Stakes), Ershaad and Sunday Doubt.
In a blanket finish, American Post took the lead 50 metres out and prevailed by half a length from Diamond Green with Byron, Ershaad and Antonius Pius just behind.
[15] Criquette Head-Maarek admitted that her colt had been a lucky winner saying "I was disappointed because he would have been second and he was beat" and expressing the view that American Post had been unsuited by the firm ground.
Ridden by Hughes was made the 13/2 third choice in a fourteen-runner field behind the Dante Stakes winner North Light and the 2000 Guineas runner-up Snow Ridge.
After turning into the straight in fourth he moved up to second place approaching the last quarter mile but weakened in the closing stages and finished sixth behind North Light.
The best of his offspring have included Robin of Navan (Critérium de Saint-Cloud), Liliside (disqualified after winning the Poule d'Essai des Poulains), American Devil (Prix du Palais-Royal).