Subject: September 28 – October 3 Draw Issue

  • By SAlessi
  • Oct. 11, 2017

Arizona Lottery Players:

To begin, Arizona Lottery is still investigating to determine how the error occurred. We have added additional procedures to safeguard against this error occurring again in the future and are confident on the integrity of our draws.

The games affected are Fantasy 5, Pick 3, All or Nothing and 5 Card Cash.

Powerball, Mega Millions and the Pick were not affected.

Arizona Lottery operates three Random Number Generators (RNG) to produce winning numbers for our Arizona draw games. These are standalone machines that are not connected to any network or online system. Two of the machines are currently managed with our industry colleague the Multi State Lottery (MUSL) in Iowa. The third is here in Phoenix and is used as backup.

The draw team at MUSL followed all standard procedures. As part of that standard procedure, the draw team randomly select which RNG will be utilized for each draw. For the morning draw on September 28 and September 30 and the evening draw on September 29 and October 3, RNG2 was selected. That machine produced duplicate numbers from the most recent draw that utilized RNG2.

RNG2 has been taken out of use and Arizona Lottery will utilize RNG1 and RNG3 moving forward. We have also implemented additional draw audits before numbers are certified.

The integrity of our games is paramount to Arizona Lottery. We have incredible players at Arizona Lottery and we appreciate their patience and support.

Players with non-winning tickets for the four games affected from September 28 – October 3, 2017, can return their tickets for exchange or refund to Arizona Lottery.

Lastly, since the numbers drawn were the certified numbers—despite their being duplicated—all prizes won will be honored and paid out.