The Minnesota Lottery describes a "big winner" as anyone who won more than $50K. You can see how many "big winners" Rochester has had this year below. Personally, I think $27K is a pretty big win.  The Minnesota Lottery says a winning "Northstar Cash" ticket, sold in Rochester, is worth $27,000. Brian L Knutson from Rochester bought the lucky ticket on August 28th at the Holiday Station located at 5505 Highway 52 N.