The 2015 changes extended the main ball pool to 69 balls, adding another ten numbers. However, at the same time, the Powerball pool decreased from 35 to 26. This means that although the overall odds of winning the jackpot have increased to 1 in 292 million, the overall odds of winning any prize have decreased to 1 in 24.87. The first draw incorporating the changes took place on October 7th and also saw an increase in the tier three prize (matching 4+1) climb to $50,000.
The structure of the draw is one which regular lottery players will be very familiar with; players must pick 5 regular numbers from a pool with a total of 69 numbers and in addition to these regular number picks, you also choose one bonus ball (known as the Powerball) from a pool of 26. These two pools of numbers are mutually exclusive and remain completely separate throughout the drawing procedure. In order to jackpot the US Powerball, you need to match all 5 regular numbers and the Powerball. Do this and you are instant Powerball millionaire – it’s as simple as that!