A method for providing one or more shared-ownership lottery plays using a computer system is provided. Information regarding lottery plays or pools of plays available for shared ownership for a selected game and drawing date is stored A request is received for a shared-ownership lottery play or pool for the selected game and drawing date. The stored information is used to issue an interest in a shared-ownership lottery play or pool in response to the request. Each of the issued shared-ownership lottery plays or pools is selected from the one or more lottery plays or pools available for shared ownership. The ownership of each issued shared-lottery play or pool is assigned an ownership percentage increment of less than 100 percent. A ticket or other receipt represents an ownership percentage in the shared-ownership lottery play or pool equal to the assigned ownership percentage increment.