the evolution of cdi cdi’s history is well known. its namesake racetrack, churchill downs, in louisville, ky., opened in 1875 and during its inaugural race meeting featured two races, the kentucky derby and kentucky oaks, which still highlight churchill downs’ live racing calendar today. today, the twin spires still proudly reign over churchill downs’ homestretch, and kentucky derby champions race by these architectural features turned trademarks on their way to the finish line, the winner’s circle and the history books. about churchill downs incorporated churchill downs incorporated (cdi) (nasdaq: chdn), headquartered in louisville, ky., owns the world-renowned churchill downs racetrack, home of the kentucky derby and kentucky oaks, as well as racetrack and casino operations in miami gardens, fla.; racetrack, casino and video poker operations in new orleans, la.; racetrack operations in arlington heights, ill.; a casino resort in greenville, miss.; a casino hotel in vicksburg,