The 2021 Arnold Palmer Invitational tees off Thursday from Bay Hill Club & Lodge in Orlando. Two-time FedEx Cup champion Rory McIlroy is the 9-1 favorite at William Hill Sportsbook, followed by Bryson DeChambeau and Viktor Hovland at 12-1.

We simulated this tournament 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 in June. In fact, it's up almost $11,000 on its best bets since the restart, nailing tournament after tournament. 

Last month at the AT&T Pebble Beach Pro-Am, McClure nailed Daniel Berger's win at +1400 in his best bets. McClure was also all over Viktor Hovland's (+2500) victory in his best bets at the Mayakoba Golf Classic in December. That was one of many huge calls he's made in the past few months. 

After nailing Sergio Garcia (+5500) finishing on top of the leaderboard at the Sanderson Farms Championship, McClure finished up over $6,200 yet again on his best bets in that tournament. The model had him in the top five from the start and McClure's best bets included Garcia winning outright. 

He also finished profitable at the U.S. Open, nailing two of his best bets, including a +1100 top-five bet on Matthew Wolff. This same model has also nailed a whopping six majors entering the weekend! Anyone who has followed it has seen MASSIVE returns!

One major surprise the model is calling for at the Arnold Palmer Invitational 2021: Jordan Spieth, one of the top Vegas favorites, stumbles and doesn't even crack the top 10. Another surprise: Hideki Matsuyama, a 28-1 long shot, makes a strong run at the title. He's a target for anyone looking for a HUGE payday.

Also, the model is targeting FIVE OTHER golfers with odds of 20-1 or higher, including a MONSTER long shot! Anyone who backs these long shots could hit it BIG.

So who wins the 2021 Arnold Palmer Invitational? 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 Arnold Palmer Invitational, and see which long shots make a run at the title, all from the model that is up almost $11,000 on PGA picks since the restart!