Qirat held off a late charge from Rosallion to emerge as a shock 150-1 winner in the Sussex Stakes on the second day of Glorious Goodwood.
The Ralph Beckett-trained four-year-old, who was included in the mile race as the pacemaker for 1-3 on favourite Field Of Gold, took an early lead, but was overhauled by the Aidan O’Brien-trained Serengeti.
Qirat regained the lead and finished a neck clear of Rosallion to land a massive upset.
It was the biggest-priced success of modern times in a British Group One race, with Sole Power – at 100-1 in the 2010 Nunthorpe Stakes – the only other three-figure priced top-level winner in the 21st century.
Qirat was only entered last week for £70,000 to help St James’s Palace Stakes and Irish 2,000 Guineas winner Field Of Gold.