DEAUVILLE, France--Back at Arqana's yearling sale in August, Tim Donworth had just left the employment of Jean-Claude Rouget with a view to setting out his own stall from Sept. 1. The racing gods have smiled kindly in the meantime, and the 27-year-old is now almost eight weeks into his training career with three winners and a second from just five starters. Those three victories have all come during this week's sale at Arqana, starting on Sunday at Le Mans with Cotai Hero (Ire) (Cotai Glory {GB}) and, like buses, the...