Fitzpatrick birdied five of his last six holes to card an opening seven-under-par 65 and finish a shot ahead of an eight-strong group which included former Masters champion Sergio Garcia, world No 5 Bryson DeChambeau and England’s Callum Shinkwin.
Lee Westwood, Ian Poulter and defending champion Li Haotong were among nine players a shot further back as 74 players in the 132-man field broke par at Emirates Golf Club.
Fitzpatrick’s 65 was his lowest opening round since the 2015 British Masters at Woburn, an event he went on to win to claim the first of his five European Tour titles to date.
“It was obviously a great finish to the round,” said Fitzpatrick. “A couple of things that I’ve been doing in the off-season looked to have paid off a little bit. I added a bit of extra length to my driver so it’s given me a few yards to help get on in two on the last (the par-five 18th) because I’ve never been able to do that. And then just wedging it a lot better has given me a few more chances.”
Fitzpatrick made a successful defence of his European Masters title in Switzerland last year and finished 12th in the US Open, but was otherwise disappointed with his 2018 campaign.
“I’m not going to lie, I was really disappointed with my season last year,” added the 24-year-old, who feels he is “lucky” to have won a battle for the services of veteran caddie Billy Foster after his split with Lee Westwood.
“Second in Hong Kong kind of saved it a little bit at the end of the year there, but I knew a lot of things needed to change. I needed to work on different parts of my game, different shots, and really did feel like I put in a lot of work over the winter.
“And so far I’ve played five rounds this year and have played pretty well for all of them. Hopefully it continues.”
Shinkwin defeated Fitzpatrick in the final of the English Amateur in 2013 but is still searching for his first European Tour title and lost his card at the end of 2018. That meant the 25-year-old had to qualify for this week’s event by winning a 36-hole qualifier, having done the same to earn a place in the field in Abu Dhabi last week.
“Playing six, seven days on the trot is hard on the body and the mind,” he said.