On the morning of Sunday, June 7, 2015, a small gathering at John Gosden's Clarehaven Stables celebrated the previous day's Derby one-two of stable-mates Golden Horn (GB) and Jack Hobbs (GB). The two colts posed either side of their trainer, with their regular riders, the late Michael Curran and Taffy Williams, proudly at their sides. Golden Horn would end the season as Horse of the Year, thanks to his subsequent triumphs in the Eclipse, Irish Champion Stakes and Prix de l'Arc de Triomphe. Only the fillies Arabian Queen (GB) and...