The 2021 3M Open tees off Thursday, July 22, from TPC Twin Cities in Minnesota. Dustin Johnson is the 7-1 favorite in the latest 2021 3M Open odds from William Hill Sportsbook, followed by Tony Finau (14-1), Louis Oosthuizen (14-1) and Patrick Reed (18-1). 

We simulated the 2021 3M Open 10,000 times, and there are some MAJOR surprises.

Our proprietary model, built by DFS pro Mike McClure, has been RED-HOT since the PGA Tour resumed last June. In fact, it's up over $10,500 on its best bets since the restart, nailing tournament after tournament.

At the 2021 Open Championship, McClure's best bets included Collin Morikawa winning outright even though he was listed as a massive 40-1 long shot. He was also all over Daniel Berger (+220) and Emiliano Grillo (+700) finishing inside the top-20. McClure's best bets netted over $2,200 at the Open Championship.

In addition, McClure's model was all over Jon Rahm's (10-1) first career major championship victory at the 2021 U.S. Open. Rahm was two strokes off the lead heading into the weekend, but the model still projected him as the winner. And at the 2021 Masters, McClure nailed Rahm's (+250) top-five finish in his best bets, as well as Corey Conners' (+550) top-10 showing. 

This same model has also nailed a whopping seven majors entering the weekend! Anyone who has followed it has seen MASSIVE returns!

One major surprise the model is calling for at the 2021 3M Open: Reed, a nine-time PGA Tour winner and one of the top favorites, struggles and barely cracks the top five! Another surprise: Cameron Tringale, a 28-1 long shot, makes a strong run at the title. He's a target for anyone looking for a HUGE payday.

Among the options the model is touting is a long shot who comes in at well over 35-1 in the 3M Open odds 2021. Golfers who can get birdies in bunches excel at TPC Twin Cities, and this sleeper fits the bill perfectly! Anyone who backs this underdog could cash in HUGE.

So who wins the 2021 3M Open? And which HUGE long shots make a serious run at the title? ... Join SportsLine right now to see who you can bank on to win the 2021 3M Open, and see which long shots make a run at the title, all from the model that nailed seven majors!