Abstract: A system and method for selling lottery tickets offers players an option to make a first purchase of one or more bonus lottery plays sets after meeting a qualifying purchase, and a second option to purchase one or more rollover play sets based on the winning outcome of the first purchase, without having to make any further qualifying purchases. The system determines whether a lottery ticket presented for validation includes one or more winning plays as well as bonus lottery play sets. If the lottery ticket includes a bonus lottery play set, the system makes an offer for the holder to purchase one or more rollover play sets without requiring another qualifying purchase. Each of the bonus lottery play sets and the rollover play sets comprises a set of two or more whole lottery plays, a pool of shared-ownership lottery plays, or a set or two or more fractional lottery plays.

Abstract: 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.