YANKTON, S.D.(WNAX)- A pact that spanned multiple decades proved fruitful for the South Dakota Lottery newest million-dollar prize winners.

Emil Goodteacher and Donna Knodel of Yankton became the South Dakota Lottery’s latest big winners by claiming a $2 million prize from the Aug. 28 Powerball drawing. The friends won the game’s second prize, which also doubled due to the Powerplay feature.

For Goodteacher and Knodel, the big prize was the culmination of a routine the two friends had to purchase tickets and split any prizes. The two have purchased tickets since the late 80s, and their biggest win prior to the Aug. 28 drawing was $400.

Knodel and Goodteacher’s win marks the first Powerball million-dollar prize sold in South Dakota since June 5, 2013.

The winning ticket was purchased at Hy-Vee, on Broadway Ave. in Yankton. The retail location will receive a $25,000 retailer incentive for selling the winning ticket.