Round Rock Express vs. Oklahoma City Comets is a Triple-A baseball series at Dell Diamond in Round Rock, just outside Austin. Dell Diamond is a classic ballpark, and a night here is all about hot dogs, cheering for the home team and soaking up that old-school summer baseball feeling. Grab a seat, keep score if you like, and enjoy the crack of the bat under the lights. It's a great pick for baseball fans, families and anyone who wants a relaxed night out with friends.