Doricles

Doricles made his debut in the 48th Triennial Stakes at Ascot Racecourse and finished third behind Veles and Lord Melton.[6] At Newmarket Racecourse on 3 July, Doricles was ridden by Tommy Loates in the July Stakes over five and a half furlongs and started at odds of 10/1. In a "fine race" Doricles dead-heated for first place with Veles with Handicapper among the unplaced finishers.[7]

Doricles' owner Leopold de Rothschild

On 1 May 1901 Doricles made his three-year-old debut in the 2000 Guineas over the Rowley mile at Nemarket and started second favourite behind Veles at odds of 4/1. After tracking the leaders for most of the way he made steady headway in the last quarter mile, but was never able to get on terms with the 33/1 outsider Handicapper and finished second, beaten two lengths with Osboch in third.[8] Two weeks later at the next Newmarket meeting the colt was moved up in distance for the Newmarket Stakes over ten furlongs and finished second, beaten a head by William the Third, with the 1000 Guineas winner Aida in third, after what was described as "one of the finest struggles ever seen".[9] In the Epsom Derby over one and a half miles on 5 June Doricles came home seventh of the twenty-five runners behind Volodyovski.[10] On 23 July at Liverpool the colt started 5/2 favourite for the eleven furlong Saint George Stakes, but was beaten a length into second place by Fortunatus.[11] At Brighton Racecourse on 7 August Doricles recorded his first success for over a year when he won the ten furlong Brighton Cup "easily" from four opponents.[12] A week before running in the St Leger the colt won again, taking the Champion Breeders' Biennial Foal Stakes at Derby Racecourse by half a length at odds of 4/7.[13]

On 11 September Doricles, ridden by Kempton Cannon, started a 40/1 outsider in a thirteen-runner field for the 126th running of the St Leger Stakes over fourteen and a half furlongs at Doncaster Racecourse. Volodyovski started the 5/6 favourite while the other runners included Fortunatus, Veronese (Prince of Wales's Stakes), Jacobite (Grand Prix de Deauville), Aida and the Irish-bred Revenue. After settling behind leaders for most of the way, Doricles moved into contention in the straight, gained the advantage approaching the final furlong, and fought off the challenge of Volodyovski to win by a neck. Revenue was three lengths back in third place ahead of Pietmaritzburg. Lester Reiff, the rider of the runner-up, lodged an objection to the winner on the grounds of "bumping", but the racecourse stewards upheld the result.[14] The colt's victory was a first classic success for Cannon and the winning time 3.08.4 was a new record for the race.[15]

The Kempton Park Stakes in October attracted a very strong field and saw Doricles finish fourth behind the four-year-old gelding Epsom Lad.[16] Later that month the colt ran in the Champion Stakes at Newmarket and finished third of the three runners behind Osboch and Pietmaritzburg.[17]

Doricles ended the year with earnings of £6,955, making him the fifth most successful racehorse of the season.[2]

Doricles remained in training as a four-year-old but failed to recover his best form.[18] In early spring he was beaten by St Maclou in a Biennial Stakes at Newmarket,[19] and then ran unplaced behind First Principal in the City and Suburban Handicap at Epsom.[20]