Explaining his aversion to socialising, Vincent Ho Chak-yiu was suitably succinct. “When I have to talk, it’s a lot of effort,” he told the South China Morning Post. “Harder than riding a horse, for sure.” It is logical that one of Hong Kong’s greatest jockeys feels most contented on horseback. When Ho begins speaking, though, the personal takes and tales roll off his tongue. He relives the day in New Zealand that he “felt completely dead” after riding 39 horses, explains how he bounced back...