[1] It took place on 24 May 1781 on Epsom Downs in Surrey, England, and was won by Young Eclipse, owned by gambler Dennis O'Kelly and ridden by Charles Hindley.
The previous year, Lord Derby had instigated a race at Epsom Racecourse for three-year-old horses, the name of which had been decided on a coin toss between Derby and Sir Charles Bunbury, a member of the Jockey Club (although it may have been that Bunbury deferred to Derby, who was his host at the time).
[3] The 1780 race had been won by Bunbury's horse Diomed, which was the favourite, beating Boudrow, owned by Dennis O'Kelly.
In this second running of the race, it was O'Kelly who had the winner, Young Eclipse, another colt by the pre-eminent sire of the day, Eclipse.
He beat Sir John Lade's Crop who was much the more fancied of the runners, going off 5/4 favourite.