745 ILCS 38/5
As used in this Act:
"Baseball facility" means any field, park, stadium, or other facility that is used for the play of baseball (regardless of whether it is also used for other purposes) and that is owned or operated by any individual, partnership, corporation, unincorporated association, the State or any of its agencies, officers, instrumentalities, elementary or secondary schools, colleges, or universities, unit of local government, school district, park district, or other body politic and corporate.
"Baseball" includes the game of baseball or softball, including practice, regardless of whether it is played on a professional or amateur basis and regardless of whether it is played under an organized or league structure or outside of any such structure.
"Willful and wanton conduct" means a course of action which shows an actual or deliberate intention to cause harm or which, if not intentional, shows an utter indifference to or conscious disregard for the safety of others or their property.
745 ILCS 38/5