Arnold Palmer Invitational Field 2020: Best Picks, Sleepers and Latest Odds for PGA Tour Event

Rory McIlroy is the overwhelming favorite to win the Arnold Palmer Invitational in Orlando, Florida, this week.

According to Oddschecker, the Northern Irishman arrives at the Bay Hill Club and Lodge as a 9/2 favorite to take the tournament for the second time in three years.

McIlroy shot an 18-under-par 270 to finish three shots ahead of Bryson DeChambeau in 2018 and has finished no worse than fifth in each of his six starts so far.

Since missing the cut at the Open Championship in Northern Ireland in July last year, the four-time major winner has finished outside the top 10 just once in 10 starts.

The remarkable run of form propelled McIlroy back to the top of the world rankings for the first time in over four years last month. With three top-11 finishes in four starts at Bay Hill, he's definitely the man to beat.

McIlroy's Ryder Cup teammate Tommy Fleetwood is second favorite at 14/1 and will be desperate to bounce back from the disappointment he suffered at the Honda Classic last week.

The Englishman squandered the chance to secure a first PGA Tour win in his career as his second shot on the final hole of the tournament found the water.

The mistake meant Fleetwood had to settle for third, but expect him to be in contention in Orlando, where he led after two rounds a year ago before crumbling with a 4-over-par 76 on the third day.

DeChambeau, meanwhile, is a 16/1 third favorite as he returns to the course where he finished second to McIlroy in 2018. Like the Northern Irishman, DeChambeau has put together a solid run of form, finishing in the top five in three of his last four official PGA Tour starts.

However, the American's last success on the circuit dates all the way back to November 2018.

Patrick Reed and Brooks Koepka both tee-off as 27/1 shots, but the American duo arrive in Orlando in vastly contrasting form.

Reed, the 2018 Masters winner, won the WGC-Mexico Championship in his last start, while the former world No. 1 missed the cut at the Honda Classic after finishing tied 43rd at the Genesis Invitational.

The Floridian has only played 14 rounds since the start of the new year as he continues to recover from a serious knee injury, but suggested he's on the right track.

"Just need to pick it up a little bit, pick up the pace, give it maybe a little bit more touch around the greens, a little bit more feel," Koepka said last week, as per Golf Channel.

"But the way I'm striking it, I'm very pleased. I feel very happy with it."

Elsewhere, Jason Day and Henrik Stenson could both play the role of dark horses at 35/1 and 45/1 respectively. The Australian hasn't won on the PGA Tour since May 2018 but has five top-25 finishes in his last six starts at the Arnold Palmer Invitational and won the tournament in 2016.

Day missed the cut at the Genesis Invitational last month, but finished tied for 16th at the Farmers Insurance Open and fourth at the AT&T Pro-Am at Pebble Beach in the previous two weeks.

Stenson, meanwhile, hasn't played since the end of January but his game is well suited to the course at Bay Hill, where he has finished in the top 20 seven times in his eight starts—including a second-, third- and fourth-place finish.

Meanwhile, defending champion Francesco Molinari is a 175/1 outsider to defend the title he won in Orlando a year ago.

It is unusual to see such long odds next to a major winner, but the Italian has endured a dismal run of form since finishing tied for fifth at the Masters last year.

The 2018 Open champion has missed the cut in three of his last four starts and he's struggled to rediscover his game. However, he has four top-10 finishes in seven starts at Bay Hill, so he can't be completely ruled out.

Rory McIlroy, PGA Tour
Rory McIlroy of Northern Ireland reacts on the first green during the final round of the World Golf Championships Mexico Championship at Club de Golf Chapultepec on February 23 in Mexico City, Mexico. Cliff Hawkins/Getty