Churchill Downs Inc. said Tuesday it will enter the real-month online gaming and sports betting markets, on the heels of the U.S. Supreme Court's ruling this week that could open up sports betting around the country. The company, which hosts "The Kentucky Derby" horse race, said it partnered with SBTech to use SBTech's technology platform for its iGaming and sports betting operations. Churchill said the partnership will enable it to enter New Jersey's and Pennsylvania's iGaming and sports betting markets, and to enter Mississippi for sports betting. "We are confident that our strategic partnership with SBTech provides us with an industry leading platform to offer innovative and exciting, integrated iGaming and sports betting products," said Chief Executive Bill Carstanjen. Churchill Downs' stock, which was still inactive in premarket trade, has rallied 6.7% this week after the Supreme Court ruling, while the S&P 500 has slipped 0.6%.