Trial run
by Dick Francis
From Amazon.com: The last place veteran horseman Randall Drew wanted to go was Moscow. But when his royal highness the prince asks a favor, one doesn’t refuse. The Royal Family is worried about the prince’s brother in law, who aims to make the Olympics. Unfortunately a jealous Russian rider has sworn to kill him if he sets one hoof in Moscow. So Randall leaves his thoroughbred horses and loving girlfriend to investigate.
