On his racecourse debut in the summer of 1797 he won the Epsom Derby.

Blank made his racecourse debut aged six at Newmarket in April 1746.

Maybe made her racecourse debut in a maiden race at Naas on 11 May 2011.

He won the Derby on his racecourse debut, beating the smallest field in the history of the race.

Oath made his racecourse debut in a maiden race at Goodwood in June.

Flyingbolt made his racecourse debut on 13 May 1963 in a flat race over 12 furlongs at Leopardstown.

He made his racecourse debut on 23 April 1822 at Newmarket.

One of the smallest horses to win a classic, he won the St Leger on his racecourse debut in September 1792.

Blair Athol made his racecourse debut in the 1864 Derby on 25 May.

Troy made his racecourse debut in the summer of 1978 when he finished second in a maiden race.