Fleetwood had the lead with one stroke in the major tournament Travelers Championship before the last hole.
The Englishman thus seemed to have good chances to take home his first win on the PGA tour after 41 top ten finishes and five second places before the tournament.
Then Fleetwood missed his putt for par while the American Keegan Bradley struck with a birdie and took home the win.
It's probably the worst way to finish, says Fleetwood and continues:
To lead with one stroke before the last hole and not even take it to a playoff. It was the worst that could happen.
The best Swede became Alex Norén with a shared 30th place while Ludvig Åberg finished in a shared 36th place.