So You Think held off a challenge from rival Carlton House to win the Prince of Wales's Stakes at Royal Ascot this afternoon.
Nineteen-year-old jockey Joseph O'Brien asked the horse to make a move from the middle of the pack in the closing stages.
The five-year-old responded by galloping ahead to take the lead and despite a late fightback from Carlton House, a horse owned by the Queen, he held on to take its tenth Group One victory.
The New Zealand-bred horse has now won over £5m in prize money.
