(1) A nonprofit organization sponsoring a rodeo, cowboy polo, cutting horse, O-Mok-See, trail riding, horse packing, horse show, or jackpot roping event, or employee of the organization, is not liable for injuries suffered by a contestant as a result of the contestant's voluntary participation in the event except for injuries caused by a willful or wanton act of the sponsoring organization or its employees.
(2) For purposes of this section, a minor is considered to be in voluntary participation in an event if:
(a) the minor has provided written consent to participate in the event; and
(b) the consent is approved by one of the minor's parents or by the minor's legal guardian.