It was his highest score of the week as he finished at nine-over 289, dropping 13 places from his overnight position.
As Justin Thomas won a play-off over Luke List, Tiger Woods was 12th showing that he is slowly but steadily getting into shape to contend.
Lahiri had three birdies, the first of which came on the third. He dropped a double on fifth followed by a bogey on sixth and another on ninth and turned in three over. On the back nine, he birdied 12th, but once again had a bogey and double bogey on back-to-back holes 14th and 15th and not even a birdie on the tough 17th could better his day.
Thomas and List finished at 8-under 272. It was the seventh playoff in 15 PGA TOUR events this season. Thomas closed with a 2-under 68 and won for the second time this season. He also won in a playoff at the CJ Cup in South Korea last fall.
He hit a wedge from 117 yards that landed a few feet in front of the hole and rolled some 6 inches to the side of the cup, settling 2 feet away.
List, going for his first PGA TOUR victory, erred first in the playoff by missing his drive well to the right amid palm trees. He blasted that out left and against the grandstand, and then watched Thomas take on the water and hit the green in two.
Alex Noren was tied for the lead playing the 18th and caught an awkward lie from the side of a bunker. He made par for a 67 and finished one shot behind.
Thomas five bogeys were second-fewest in the field and he also made one double-bogey.
Three years ago, Thomas had something like nine penalty drops in 36 holes while missing the cut. He finished third here in 2016, but missed the cut again last year.
Disclaimer: No Business Standard Journalist was involved in creation of this content
