O'Brien favourite for Jockeys' Championship Joseph O'Brien, who leads Pat Smullen at the head of the Flat Jockeys Championship by one winner, is long odds-on with bookmakers to gain his first Championship win. O'Brien, who is set to serve a one day suspension later this week is best priced at just 4/9 (Boylesports), despite leading Smullen by just 72-71. Multiple Champion Smullen is best priced at 3/1, with Stan James, with the season finishing at Leopardstown on Sunday November 4.