New Jersey Racetrack Makes Bet of its Own Against Feds

By Bob Darwell and Jeff Watkins   William Hill, one of Britain’s largest bookmakers, is hoping that they are in the money on a recent investment to become the exclusive operators of a sports book within Oceanport, N.J.’s Monmouth Park Racetrack. William Hill also became the title sponsor of the state’s biggest racing event, the $1 million William Hill Haskell Invitational, a midsummer target for top 3-year olds, to be run on July 28.   The investment is a bet that courts will dee