Prix de l'Opéra
On 16 June, Byword was sent to Britain and started 5/2 favourite for the Group One Prince of Wales's Stakes over ten furlongs at Royal Ascot. His opponents included Twice Over, Presvis, Debussy, Shalanaya (Prix de l'Opéra), Cavalryman (Grand Prix de Paris), Glass Harmonium (Gordon Richards Stakes) and Mawatheeq (Cumberland Lodge Stakes). Guyon positioned the colt just behind the leaders before moving up on the outside in the straight to overtake the outsider Tazeez a furlong from the finish. He held off a late challenge from Twice Over to win by half a length with Tazeez three quarters of a length away in third. Fabre commented "I knew the horse had the ability. He's a very good horse. He matured from three to four and last year he got a virus and he's just coming to himself". Fabre also praised the 21-year-old Guyon, who was winning his first race in Britain, saying "I am very pleased for him. Not only is he a good jockey, he is a nice chap. There are always worries before a race and his inexperience was one, but he is very laid back".