Contestants predict the outcome of sporting events that take place at a later time. The concept was introduced in 1923 by Littlewoods Pools where it was known as toto[clarification needed] and based on football (soccer) matches. Today in England, sports lotteries are more commonly referred to as football pools. American sports lotteries often do not require contestants to purchase a lottery ticket or make an initial wager. Hockey pools are common in North America, and footy tipping in Australia.
A death pool is a betting pool concerning the death of someone.