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).[2] The race was over 1 mile (although in 1784 that would be increased to 1 mile 4 furlongs, the distance it has been ever since).[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.
Mortimer, Roger; Onslow, Richard; Willett, Peter (1978). Biographical Encyclopaedia of British Racing. London: Macdonald and Jane's. ISBN0-354-08536-0.
Pick, Willam; Johnson, R. (1822). "Winners &c". The Turf Register, and Sportsman & Breeder's Stud-book. 3.
