In addition to in-person sports wagering and horse racing simulcast wagering at Raynham Park, Caesars Sportsbook will also launch online when mobile sports betting goes live later this year. Caesars Sportsbook was one of several operators to have been found to have met the eligibility requirements for a temporary mobile sports betting license by the Massachusetts Gaming Commission. Originally founded as a greyhound racetrack in 1940, Raynham Park was one of the top-grossing racetracks in the US for decades, setting an annual betting handle record of $240m in 1989. Since losing greyhound racing in 2009, the facility has remained open as a simulcast-only betting parlor with an annual betting handle of approximately $20m. Shares in Caesars Entertainment Inc (NASDAQ:CZR) closed 1.31 per cent higher at $52.53 per share in New York Thursday.