Irish online gaming operator BetBright has agreed a sponsorship deal with Cheltenham Racecourse for four races taking place on New Year’s Day.BetBright will sponsor the feature Grade Three £50,000 BetBright Best For Festival Betting Handicap Chase, the £20,000 BetBright On Mobile Handicap Chase, the Grade Two £32,000 BetBright Novices’ Chase, and the three-mile £20,000 BetBright…