MELBOURNE, AUSTRALIA - OCTOBER 17: Opie Bosson riding Mongolian Khan wins Race 9, the BMW Caulfield Cup during Caulfield Cup Day at Caulfield Racecourse on October 17, 2015 in Melbourne, Australia. (Photo by Vince Caligiuri/Getty Images)
MELBOURNE, AUSTRALIA - OCTOBER 17: Opie Bosson riding Mongolian Khan wins Race 9, the BMW Caulfield Cup during Caulfield Cup Day at Caulfield Racecourse on October 17, 2015 in Melbourne, Australia. (Photo by Vince Caligiuri/Getty Images)