POTOMAC, Md. — Francesco Molinari delivered a record performance to win the final edition of the Quicken Loans National.

Molinari holed a 50-foot eagle putt to start the back nine, and he never stopped until he turned the final round into a runaway Sunday at the TPC Potomac at Avenel Farm. The Italian closed with an 8-under 62 for an eight-shot victory, matching the largest margin this year on the PGA Tour.

Molinari followed that eagle putt with an approach to 2 feet on No. 11, one of the hardest par 4s on tour that had yielded only one other birdie in the final round. He made three more birdies and ended his round by missing a birdie putt from 8 feet.

No matter. He finished at 21-under 259, breaking the tournament record by seven shots.

“It was a lot easier than I thought,” Molinari said with a wide grin. “I played great. The start of the back nine was incredible.”

Tiger Woods closed with a 66, his lowest final round in more than five years, and he was never close. Woods tied for fourth, his best result since a runner-up finish at the Valspar Championship three months ago, though he was 10 shots beh

Ryan Armour closed with a 68 to finish second. The other three spots went to Sung Kang, Abraham Ancer and Bronson Burgoon.