parx casino | 7,171 followers on LinkedIn. The largest, most exciting casino and racetrack in Pennsylvania. Parx Casino® | Parx Casino and Racing, formerly Philadelphia Park Racetrack and Casino, is the largest and most impressive Pennsylvania gaming complex. Owned and operated by Greenwood Gaming and Entertainment, Inc., Parx features 24 hour gaming; 3,500 slot machines; 140 live table games; a premier poker room with 60 poker tables; live racing and simulcast action; delicious dining options; bars, one of the hottest nightclubs around, and more.