Pat Day Is Furlongs Ahead Of The Crowd Pat Day Is The Greatest Jockey In The World. This Isn't One Of Those Sports Questions That Is Debatable, Like ``who's The Best Pitcher In Major-league Baseball?'' Or ``who Is The Greatest Quarterback In The History Of Pro Football? When It Comes To Riding Thoroughbred Racehorses, There Is Pat Day And Then There Is Everybody Else.