The first three rounds of the 2023 Open Championship are officially in the books with American Brian Harman (-12) holding a five-shot lead atop the Open Championship 2023 leaderboard. Cameron Young (-7), who finished runner-up at last year's British Open, is in second place, followed by Jon Rahm (-6), with Jason Day and Viktor Hovland among five golfers at 5-under-par.

According to the latest 2023 Open Championship odds from Caesars Sportsbook, Harman is the -200 favorite (risk $200 to win $100), with Rahm (+700) next in line. Other 2023 Open Championship contenders include Young (+750) and Hovland (+2200).

We simulated the final round of the 2023 Open Championship 10,000 times, and there are some MAJOR surprises. Join SportsLine now to see the shocking Open Championship leaderboard.

Our proprietary model, built by DFS pro Mike McClure, has been RED-HOT since the PGA Tour resumed in June of 2020. In fact, the model is up almost $10,000 on its best bets since the restart, nailing tournament after tournament.

McClure's model predicted Rahm would finish on top of the leaderboard at the 2023 Sentry Tournament of Champions and The American Express. And at the 2023 Masters, the model was all over Rahm's second career major victory heading into the weekend. Rahm was two strokes off the lead heading into the third round, but the model still projected him as the winner. It was the second straight Masters win for the model, which also nailed Scottie Scheffler winning in 2022.

In addition, the model included Nick Taylor in its best bets to win the 2023 RBC Canadian Open. That bet hit at +7000, and for the entire tournament, McClure's best bets returned nearly $1,900. McClure's best bets also included Day (17-1) winning outright at the 2023 AT&T Byron Nelson, even though he hadn't won a PGA Tour event since 2018.

This same model has also nailed a whopping nine majors entering the weekend! Anyone who has followed it has seen MASSIVE returns! Join SportsLine now to see the model's shocking Open Championship picks from 10,000 simulations!

One surprise the model is calling for the final round of the Open Championship 2023: Antoine Rozner, who enters Sunday tied for fourth place, stumbles down the stretch and doesn't even crack the top 10! Another surprise: Day, a massive 300-1 longshot, makes a strong run at the title. He's a target for anyone looking for a HUGE payday!

Also, the model is targeting THREE other golfers with odds of 500-1 or longer who will make a STRONG run at the title, including an enormous 5000-1 longshot! Anyone who backs these golfers could hit it BIG. You ABSOLUTELY need to see who they are before locking in any 2023 Open Championship picks for the final round!

So who wins the Open Championship 2023? And which HUGE longshots make a run at the title? ... Join SportsLine right now to see who you can bank on to win the 2023 Open Championship, and see which longshots make a run at the title, all from the model that's nailed nine majors!