TwinSpires is a Churchill Downs Incorporated brand and the. Watch and wager on your favorite online betting platform. . twinspires free plays. TwinSpires Racing TwinSpires Racing is the premier online horse racing wagering platform. Oscars betting odds, categories, information, forecasts and past results provided by [HOST] The TwinSpires online casino experience can be found in Michigan, New Jersey and Pennsylvania. GET STARTED TODAY * at [HOST], [HOST], NYRAbets, and [HOST] Discover more online. Online Casino · Offshore Casinos · No Minimum Deposit TwinSpires Sportsbook Promo Code · Betanysports Bonus Codes · BetNow Promo. TwinSpires offers wagering on horse racing, sports, and online casino. Bet has launched online sports betting operations in Arizona, bringing the sportsbook's total reach to nine states across America. While you can head over to TwinSpires Casino and apply it to blackjack, the Martingale gambling system is more widely used in roulette because it works best.