She was sired by Highflyer, an undefeated son of Herod that stood at Richard Tattersall's Red Barns near Bury St.
[3] On 28 September at Doncaster, Omphale beat Mr. Hutton's colt Harlequin Junior and five other horses to win the ninth running of the St. Leger Stakes.
[4] On 24 June 1785 at Newcastle-upon-Tyne, Omphale won the £50 Corporation Purse run over two-mile heats, beating Oak Apple.
At York on 20 August, she received a forfeit from Mr. G. Snowden when his filly sired by North Star backed out of a match race.
[6] In June 1786 at Hexham, she finished second to Blackbird in a match race run over two, four-mile heats and a few days later was second in the His Majesty's Plate at Newcastle-upon-Tyne.