The Derby Day is a large oil painting showing a panoramic view of the Epsom Derby, painted by William Powell Frith over 15 months from 1856 to 1858. It has been described by Christie's as Frith's "undisputed masterpiece" and also "arguably the definitive example of Victorian modern-life genre".
The original version is in Tate Britain in London. As with many of Frith's works, he painted a second version many years later, which is now in the Manchester Art Gallery. A much smaller but well-finished oil study was sold in 2011.
The painting measures 40 inches (100 cm) by 88 inches (220 cm) and gives a satirical view of Victorian society. It includes three main scenes, during the annual spectacle of the Derby, when large numbers of Londoners left town for the day to visit the races on Epsom Downs, presenting a cross-section of society in a contemporary saturnalian revel. Earlier pictures of the Derby crowds were drawn by illustrators such as John Leech or Dickie Doyle.
On the left, near the private tent of the Reform Club, rich city gentlemen in top hats surround the table of a thimble-rigger who is busy cheating them out of their money. To the right, one stands with his hands in his empty pockets, and shirt gaping, having gambled away his pocketwatch, its curb chain and his shirt-studs. In Frith's 1895, My Autobiography and Reminiscences the painter-turned-memorialist leaves a charming account of his encounter with a thimble-rig team (operator and accomplices):
"My first visit to Epsom was in the May of 1856 — Blink Bonnie's year. My first Derby had no interest for me as a race, but as giving me the opportunity of studying life and character it is ever to be gratefully remembered. Gambling-tents and thimble-rigging, prick in the garter and the three-card trick, had not then been stopped by the police. So convinced was I that I could find the pea under the thimble that I was on the point of backing my guess rather heavily, when I was stopped by Egg [Frith’s companion], whose interference was resented by a clerical-looking personage, in language much opposed to what would have been anticipated from one of his cloth. 'You,' said Egg, addressing the divine, 'you are a confederate, you know; my friend is not to be taken in.' 'Look here,' said the clergyman, 'don't you call names, and don't call me names, or I shall knock your d — d head off.' 'Will you?' said Egg, his courage rising as he saw two policemen approaching. 'Then I call the lot of you — the Quaker there, no more a Quaker than I am, and that fellow that thinks he looks like a farmer — you are a parcel of thieves!' 'So they are, sir,' said a meek-looking lad who joined us; 'they have cleaned me out.' 'Now move off; clear out of this!' said the police; and the gang walked away, the clergyman turning and extending his arms in the act of blessing me and Egg."