Oz Lotto is an Australian national lottery game, administered by Tattersall’s and played on Tuesday nights. It was introduced on 26 February 1994 and promoted as the first fully national lotto game, at a time when the state of New South Wales was not a part of Saturday National Lotto.
Originally, the game required six numbers to be picked out of 45. However, since 18 October 2005, a seventh number began to be drawn, greatly lengthening the odds of winning Division 1 (close, but not longer, than that of Powerball). In line with this change, branding for Oz Lotto changed in many states, to emphasise the seventh ball (including new names, such as Super 7’s Oz Lotto in Tatts regions, and Oz 7 Lotto in Queensland).
Due to the introduction of a seventh number, Oz Lotto provides extremely high jackpots and an increased chance of rollovers. Oz Lotto’s features a starting jackpot of $2,000,000.
Oz Lotto currently holds the record for the largest Australian lotto jackpot prize. Originally guaranteed at $90 million, two winners (from Queensland and South Australia) shared a Division 1 pool of $106,549,984.76 in the draw on 30 June 2009.
|Division||Winning Numbers Required|
|2nd Division||6 + supplementary|
|4th Division||5 + one or both supplementary|
|7th Division||3 + one or both supplementary|