Powerscourt (1 April 2000 – 17 July 2021) was a British-bred Irish-trained Thoroughbred racehorse and sire, best known for his two runs in the Arlington Million: he was disqualified after finishing first in 2004 but returned to win the race in the following year.
Before the start of his racing career the colt passed into the ownership of John Magnier's Coolmore Stud organisation and was sent into training with Aidan O'Brien at Ballydoyle.
[3] As a broodmare she produced Riposte (Sheepshead Bay Stakes) and Last Train (Prix de Barbeville) but had her biggest success with Kind the dam of Frankel and Noble Mission.
Powerscourt had training problems and did not reappear until 29 June, when he started at odds of 12/1 for the Irish Derby and came home sixth of the nine runners, more than ten lengths behind the winner Alamshar.
In July he was dropped in class and distance for a minor race over ten furlongs at Leopardstown and led from the start to win from the Jim Bolger-trained Napper Tandy.
Ridden as in his two previous wins by Mick Kinane, he tracked the leaders before taking the lead in the straight and then rallied after being headed by Brian Boru to regain the advantage in the final strides and prevail by a neck.
[7] Powerscourt bypassed the St Leger on the 13 September (which was won by Brian Boru) and was aimed instead at the Irish equivalent which was run on the same day at the Curragh Racecourse.
Racing against older horses for the first time he stayed on well in the straight to finish third behind Vinnie Roe and Gamut, with Bollin Eric back in fourth.
The colt began his campaign in the Tattersalls Gold Cup over ten and a half furlongs at the Curragh on 23 May and started second favourite behind Nysaean (twice winner of the Mooresbridge Stakes).
He took the lead a furlong out but hung sharply left, hampering the German challenger Epalo who in turn collided with Kicken Kris, drawing an angry response from the latter's rider Kent Desormeaux.
Spencer managed to straighten up Powerscourt in the final strides and he crossed the line first ahead of Kicken Kris, Magistretti and Epalo, only to be disqualified by the racecourse stewards.
On his return to Europe he ran poorly when a remote fourth in the Hardwicke Stakes (run that year at York) but produced a rather better effort when second to Imperial Stride in the Scottish Classic at Ayr Racecourse in July.