1) Baseball-game ticket stub 2) Consolation of a sort 3) Deferral 4) Redeemable stub 5) Relative of an IOU 6) Return ticket 7) Sellout extension 8) Ticket for a makeup game 9) Ticket stub, at times Found on https://www.crosswordclues.com/clue/raincheck
A chit that stores give customers for sales items that are sold out. It allows the customer to return at a later date and purchase the item at the sale price. Found on http://www.encyclo.co.uk/local/20108