How many horses have won the Prix de l’Arc de Triomphe more than once?

Traditionally staged on the first Sunday in October at Longchamp Racecourse in the Bois de Boulogne, west of Paris, the Prix de l’Arc de Triomphe is one of the highlights of the international racing calendar. Run over a mile-and-a-half and open to horses aged three years and upwards of either gender, except geldings, the ‘Arc’ is a prestigious Group One contest, which regularly atrracts the crème de la crème of middle-distance from all over the world.

The Prix de l’Arc de Triomphe was inaugurated in 1920 and has been sponsored by Qatar Racing, under the auspices of Sheikh Fahad Al Thani, of the Qatari Royal family, since 2008. It is, in fact, the most valuable race run on the Flat anywhere in Europe, offering €5 million in total prize money, of which €2.86 million goes to the winner. Horses aged four years and upwards carry 9st 5lb, three-year-olds carry 8st 12lb and fillies and mares receive a 3lb allowance. Consequently, for horses of the ‘Classic’ generation – that is, three-year-old colts and fillies – British trainers often consider the Prix de l’Arc de Triomphe as a viable alternative to the St. Leger Stakes, which is run over two furlongs further at Doncaster in September.

All told, eight horses – in chronological order, Ksar (1921, 1922), Motrico (1930, 1932), Corrida (1936, 1937), Tantieme (1950, 1951), Ribot (1955, 1956), Alleged (1977, 1978), Treve (2013, 2014) and Enable (2017, 2018) – have won the Prix de l’Arc de Triomphe twice, but no horse has won the race three times.

Why are horses gelded?

Males horses typically undergo puberty or, in other words, attain sexual maturity at or beyond the age of 15 months. Adolescent horses learn quickly, so this is an ideal time for training. However, as testosterone levels in the blood, and sperm production, increase, adolescent colts often display mating behaviours, such as biting, kicking and rearing, and generally become distracted, unruly and difficult to train. Thus, once it is clear that they will not be used for breeding, many colts are gelded, or castrated, to improve their demeanour and work ethic.

Gelding is a common surgical procedure, which involves removing the testicles and epididymis, and can be performed under standing sedation, rather than general anaesthetic. Testosterone is produced in cells in the testicles and, in their absence, its level in the blood drops rapidly, resulting in abrupt behavioural changes.Testosterone is also a growth hormone, which stimulates muscle growth, so geldings may also benefit from physiological changes, such as more proportioned musculature, which can enhance their performance on the racecourse. In Britain, most male National Hunt horses are gelded but, on the Flat, geldings are prohibited from running in several prestigious Group One races, including the Derby.

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