Answered my own question:
http://www.tristateracetrack.com/pla...b/default.aspx
"Must be 18 to join and must have a valid photo ID. "
http://www.tristateracetrack.com/abo...ful_hints.aspx
"You must be 18 years of age or older to enter into the Mardi Gras area."
"Children under
16 must be attended by parents at all times; however,
anyone under 18 is not permitted in mutuel lines or gaming areas."