Events that rely on the appearance of a single individual or group are subject to cancellation and lost expenses and/or revenue if that person or persons are unable to appear for reasons beyond their control. Non-appearance policies provide coverage for "all risk" of cancellation or postponement, including medical causes (subject to pre-approved medical report). This cover can be expanded to include revenue loss associated with post-regular season revenue streams, as well as contingent business income due to a player missing playing time.