LONDON — Tony McCoy, the most successful jump jockey of all time, rode his 4,000th winner when he partnered Mountain Tunes to victory at Towcester racecourse in England Thursday. Champion jockey for the last 18 seasons, the 39-year-old Irishman broke into a broad smile after needing all his customary strength in the saddle to drive his mount to a narrow victory for trainer Jonjo O'Neill. McCoy has broken record after record in his relentless pursuit of winners since his first success as a 17-year-old in Ireland in 1992. He became the fastest jockey to 200 winners in a season in 1998 and the quickest to 1,000 career wins, taking just over five years. — Reuters