Minoru (1906 – circa 1917) was an Irish-bred, British-trained Thoroughbred racehorse who won two British Classic Races. In a career which lasted from June 1908 to April 1910 he ran thirteen times and won seven races. After showing moderate form as a two-year-old he improved to become one of the best colts in England in the early part of 1909. He won his first five races including the 2000 Guineas and The Derby. His win at Epsom Downs Racecourse made his owner King Edward VII the first reigning British monarch to win a Derby and was greeted with unprecedented celebration. Minoru's bid to win the British Triple Crown ended when he was beaten by Bayardo in the St Leger. He was retired to stud in 1910 and was soon afterwards exported to Russia, where he disappeared during the Revolution in 1917.
A then popular game of chance, which simulates a horse race in miniature, had been named after Minoru.
Background
Minoru was a bay horse bred by Colonel William Hall-Walker (later Lord Wavertree) at his stud farm at Tully in County Kildare which today is the Irish National Stud. Minoru was a son of Cyllene, winner of the 1899 Ascot Gold Cup who sired three other Epsom Derby winners, but was exported to Argentina in January 1908, before his true quality as a stallion became evident. His dam was Mother Siegel, a daughter of the highly regarded multiple stakes winner, Friar's Balsam. The colt was leased by his breeder to King Edward VII along with five other yearlings. Minoru was trained by Richard Marsh at his Egerton House stable at Newmarket, Suffolk: Marsh was the established "Royal" trainer, having prepared both Persimmon and Diamond Jubilee to win the Derby for Edward when he was Prince of Wales.
Racing career
1908: two-year-old season
Minoru began his racing career impressively, by winning the five furlong Great Surrey Foal Stakes at Epsom, on 5 June, the day that Signorinetta won The Oaks. His subsequent performances in 1908 were disappointing. He finished second to Louviers when strongly fancied for the Coventry Stakes at Royal Ascot in June and was second again to Battleaxe in the July Stakes at Newmarket. After a break, Minoru returned to Newmarket in autumn for two further races. He finished third in the Hopeful Stakes, and third again in the New Nursery, a handicap race for two-year-olds. In the Free Handicap, an end-of-season ranking of the best two-year-olds Bayardo was ranked top with 126 pounds, while Minoru was unrated, meaning that he was at least twenty-two pounds behind the leader. At the end of the year he was considered "useful", but not top class. Marsh, however, thought highly of the colt: when asked to assess the six horses leased by the King from Colonel Hall-Walker, he commented, "I like Minoru best. He is a bit on the leg, but a fine and resolute goer."
1909: three-year-old season
Spring
During the winter of 1908–1909, Minoru made exceptional progress, and although the King's racing manager, Marcus Beresford, was initially sceptical, Marsh decided to train the colt for the Classics. The cold weather early in the year delayed the preparation of many horses, including Bayardo, but the lightly-made Minoru took little work to reach peak fitness, giving him an advantage over most of his rivals. After performing impressively in a private trial race, Minoru made his debut in the Greenham Stakes at Newbury on 31 March and won from Valens under top weight of 136 pounds. In the 2000 Guineas at Newmarket on 28 April he started at odds of 4/1 against ten opponents and was regarded as the chief danger to the favourite Bayardo. Ridden by Herbert Jones he raced prominently before accelerating through a narrowing gap in the closing stages and won easily from Phaleron and Louviers, with Bayardo fourth, in a race record time of 1:37.8. According to press reports the victory was greeted with "intense enthusiasm". Minoru was given very little work by Marsh before his next run in the Derby.