Wyo. Stat. § 1-1-118: Amateur rodeos; liability for injuries; consent to participate.

(a) No public school or nonprofit organization sponsoring an amateur rodeo is liable for injuries suffered by a contestant as a result of his voluntary participation in a rodeo event except for injuries caused by the willful, wanton or reckless act of the sponsoring organization or its employees.

(b) A minor shall be deemed to be a voluntary participant for purposes of this section if he has signed a written consent to participate in the rodeo event and the consent is also signed by one (1) of the minor's parents or by his legal guardian.