|Arnold Palmer Final ranking by invitation|
|-4 T Hatton (ing.); -3 M Leishman (Aus); -2 S Im (Kor); -1 B DeChambeau (United States); level K Mitchell (United States), J Dahmen (United States), D Lee (NZ), R McIlroy (NI)|
|Others selected: +1 M Fitzpatrick (ing); +3 P Reed (United States); +4 D Willett (ing); +5 M Wallace (ing); +6 I Poulter (ing), G McDowell (NI)|
Tyrrell Hatton sealed the first English victory at the Arnold Palmer Invitational and his first PGA Tour title with a single victory over Bay Hill.
His two-stroke lead overnight had disappeared in the first five holes after two bogeys on ultra-fast greens.
Hatton, 28, also had a double bogey in 74, but finished four pennies, one ahead of the 2017 winner Marc Leishman.
Rory McIlroy, second tied earlier in the day, had two double bogeys in 76 and fell four in the fifth.
“It was such a difficult day,” said Hatton. “After the double of the 11th, I thought I had managed to get out of it because I had not seen the dashboard.
“This putt at 18 – I’ve never been this nervous. I’ll never forget this week.”
There were 44 players under par after Thursday’s first round but only four at the end of the tournament.
Saturday’s average score of 75.91 was the highest of all rounds at Bay Hill since 1983 – with only one player on par – and it was the first non-major not to have a round in years 60 since 2014.
Conditions were also tough for Sunday’s final round due to swirling winds and hard putting surfaces like rock and Hatton dropped his opening hole after finding a fairway bunker.
Partner Leishman, two shots alongside the 2018 winner McIlroy at night, saw his challenge verified by a double bogey in the third after finding water with his player.
McIlroy dug a fine putt from the edge of the green to drop only one hit in the fifth, then thinned one out of a fairway bunker on the rocks to the next and ran a double bogey to drop two hits of the head.
An out-of-bounds outing led to another double bogey in the ninth and dropped him to tournament level, at that time Hatton was again in the lead after a superb two-footed tee shot in 1953 by three-sevenths.
The Englishman moved away from two of the field with a second successive birdie, but after finding the water with his training in the 11th, he crossed the green and made a double bogey to fall at the top with Sungjae Im.
Remarkably Im, winner of last week’s Honda Classic, then did a double bogey after finding water with his approach at 13th and world number 32 Hatton managed to make his way to a memorable triumph, punched out two feet for the title.
England’s Matthew Fitzpatrick produced the weekend’s only under-70 run – with four birdies in the first six holes – and despite a double bogey in the 17th, he returned 69 to finish with a total and a share of ninth.