Sunday marks the fourth and final round of the 2021 Masters. Hideki Matsuyama fired a tournament-low 65 on Saturday to surge into the Masters 2021 lead by four strokes over Will Zalatoris, Marc Leishman, Justin Rose, and Xander Schauffele, all of whom sit at seven-under. Matsuyama barreled through the back nine, recording four birdies and an eagle on 15 to claim the lead. The 2021 Masters tee times show Matsuyama and Schauffele heading to the first hole at 2:40 p.m. ET for the tournament's final group on Sunday. Should you back Matusyama to hold as part of your 2021 Masters bets?

The latest 2021 Masters odds for Sunday from William Hill Sportsbook list Matsuyama as the 5/6 favorite to wear the green jacket. Schauffele is 5-1, while Rose (9-1) is the only other golfer on the PGA odds board getting single-digits heading into Sunday. With so many players ready to pounce on Sunday if Matsuyama falters, you'll want to check out the PGA Tour predictions from the proven computer model at SportsLine before locking in your 2021 Masters picks.

SportsLine's prediction model, built by DFS pro Mike McClure, has been on fire since the return of the PGA Tour in June. In fact, it's up almost $10,000 on its best bets since the restart, nailing tournament after tournament.

Last month at the 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 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, including Patrick Reed's win at Augusta in 2018. Anyone who has followed its golf picks has seen massive returns.

Now with the final round of the 2021 Masters approaching, SportsLine simulated Round 4 10,000 times, and the results were surprising. Head to SportsLine now to see the projected leaderboard.

One huge shocker the model is calling for at the Masters 2021: Leishman, who is in the group tied for second after shooting a 70 on Saturday, stumbles and finishes well outside the top five. The 37-year-old Australian has only finished better than ninth place one time at the Masters, and that came back in 2013 when he finished fourth. He also shot a 75 in the fourth round of the 2019 Masters, the last time it was played at its traditional time.

Leishman also hasn't played particularly well this year. He's missed the cut in two of his last three events. He also has just one top-10 finish, a fourth-place at the Sony Open in January, this year. McClure's model indicates there are far better values among players near the top of the 2021 Masters leaderboard.

Another surprise: Corey Conners, a 22-1 long shot, makes a strong run at the title. He's a target for anyone looking for a huge payday. Conners sits at six-under entering the final day of the Masters 2021 and will tee off at 2:20 p.m. ET alongside Zalatoris. Conners fired a 68 on Saturday to remain in contention, carding a birdie on three of the first seven holes. He also drained a hole in one on the par-three sixth.

Conners is in the top 10 on the PGA Tour in driving accuracy percentage at 69.65 and is 11th in greens in regulation percentage at 71.40. His scoring average of 70.107 is 18th. Conners cracked the top 10 in the last month at the Players Championship and Arnold Palmer Invitational.

The model is targeting three other golfers with odds longer than 22-1 who will make a surprising run, including multiple epic triple-digit long shots who will finish near the top of the leaderboard. Anyone who backs these long shots could hit it big. You can only see them here.

So who will win the 2021 Masters Tournament? And which long shots stun the golfing world? Check out the odds below and then visit SportsLine to see the projected 2021 Masters leaderboard, all from the model that's nailed six golf majors and is up nearly $10,000 since the restart.

Hideki Matsuyama 5/6Xander Schauffele 5-1Justin Rose 9-1Will Zalatoris 10-1Marc Leishman 11-1Jordan Spieth 16-1Corey Conners 22-1Brian Harman 100-1Tony Finau 100-1Justin Thomas 250-1Patrick Reed 300-1Robert Macintyre 400-1Si-Woo Kim 400-1Shane Lowry 400-1Cameron Smith 500-1Bernd Wiesberger 500-1Jon Rahm 500-1Ryan Palmer 500-1Stewart Cink 500-1Kevin Na 500-1Viktor Hovland 500-1Henrik Stenson 750-1Webb Simpson 1000-1Joaquin Niemann 1000-1Scottie Scheffler 1000-1