In 1791 a sanction from the Jockey Club over two races, one lost as favourite and another a day later won at higher odds, resulted in the prince leaving Newmarket, never to return.
[4] On 20 October 1791, Escape started the last two miles of Newmarket's Ditch in Course as 2/1 on favourite and finished fourth and last against Mr Dawson's Coriander, Lord Grosvenor's Skylark and Lord Clermont's Pipator, two of which were considered inferior horses, losing a 60 guineas purse.
On 21 October, Escape ran four miles of Newmarket's Beacon Course at odds of 5/1 against Alderman, Chanticleer, Grey Diomed, Harpator, and Skylark, winning 60 guineas.
[7] Jockey Club stewards Charles Bunbury, Ralph Dutton and Thomas Panton told the prince that if he continued to employ Chifney, "no gentleman would start against him".
[4][8] According to George, the prince's 1831 biographer Robert Huish said the incident had "damaged his reputation as a man of honour more than any other event of his life".