Mary Ann Waltenberry bought the winning ticket Monday at the Ultimart Citgo West gas station in Ripon.
The Wisconsin Lottery says Waltenberry is not only the first millionaire from the Instant Million game, she's also one of the first players in the game's history.
Instant Million is Wisconsin's first $30 instant scratch ticket with four $1 million instant prizes. The game was sold for the first time last Friday.
Waltenberry will take home more than $673,000 after taxes. For selling the $1 million winning ticket, Citgo earns a $20,000 commission.