Race horse trainers train horses for horse racing. This involves exercising, feeding, management and, in early years, to get them used to human contact. Once a horse is old enough to be ridden, a trainer prepares a horse for races, with responsibility for exercising it, getting it race-ready and determining which races it should enter. Leading horse trainers can earn a great deal of money from a percentage of the winnings that they charge the owner for training the horse. Outside horse racing, most trainers specialize in a certain equestrianism discipline. Some fields can be very lucrative, usually depending on the value of the horses one trains or prize money available in competition. Prominent race horse trainers United Kingdom & Ireland John Gosden Tim Easterby Michael Stoute Henry Cecil Mick Channon Luca Cumani Tim Forster Dick Hern Mark Johnston Henrietta Knight Ginger McCain Paul Nicholls Aidan O'Brien Vincent O'Brien Martin Pipe Mark Prescott Fred Rimell Ted Walsh Fred Winter United States Steve Asmussen Bob Baffert Matt Baker Patrick L. Biancone Chad C. Brown Christophe Clement Brad H. Cox Bud Delp Michael Dickinson Richard E. Dutrow Sr. Robert J. Frankel H. Allen Jerkens D. Wayne Lukas Richard Mandella Michael R. Matz Ron McAnally Shug McGaughey Kiaran McLaughlin H. Graham Motion William I. Mott Todd Pletcher Monty Roberts? Art Sherman Barclay Tagg Stacy Westfall Charlie Whittingham According to The American Racing Manual, the thoroughbred horse racing trainers who have led the annual money-earning list more than twice since 1908 are: D. Wayne Lukas (14) Sam Hildreth (9) Charlie Whittingham (7) Sunny Jim Fitzsimmons, Horace A. "Jimmy" Jones (5) Bob Baffert, Laz Barrera, Ben A. Jones, William Molter (4) Hirsch Jacobs, Edward A. Neloy, James G. Rowe, Sr. (3) Australia Bart Cummings Tommy Smith Colin Hayes Noel Francis Kelly Gai Waterhouse Lee Freedman David A. Hayes Chris Waller India Rashid Byramji Pesi Shroff New Zealand Thoroughbred Tony Allan Murray Baker Roger James Colin Jillings Laurie Laxon Sheila Laxon Trevor McKee Lance O'Sullivan Paul O'Sullivan Jamie Richards Graeme Rogerson Standardbred Cecil Devine Tony Herlihy Charlie Hunter Denis Nyhan Mark Purdon Natalie Rasmussen Steven Reid Doody Townley See also Horse training Horse racing References Horse racing-related lists