After weeks of frustration on the greens, Rory McIlroy broke out in a big way during the final round of the Deutsche Bank Championship. Here's how things ended up at TPC Boston, where McIlroy rallied to win this event for the second time:
What it means: McIlroy started the day six shots behind Casey, who was seemingly in control of the tournament. But as the Englishman began to falter, McIlroy birdied five of his first nine holes to storm up the standings. His previously balky putter cooperated throughout the final 36 holes in Boston, as McIlroy now has his second worldwide victory of an otherwise disappointing season and his first PGA Tour title since the 2015 Wells Fargo Championship.
Round of the day: McIlroy won this event back in 2012, and he displayed his form of old during a final-round 65 that at times seemed effortless. The Ulsterman bombed his way around TPC Boston, leading the field in driving distance for the week, and surging past Casey with four birdies in a six-hole stretch from Nos. 7-12. While a bogey on No. 17 trimmed his lead to only a shot, he steadied himself in time to make a closing birdie that proved to be the difference.
Best of the rest: Scott earned his first career PGA Tour win at this event back in 2003, and he felt clearly comfortable once again during a back-nine 29 that netted his second straight top-5 finish. Scott birdied three in a row on Nos. 10-12, then closed with three more birdies on Nos. 16-18 that gave him a closing 65 and kept him inside the all-important top five in the FedEx Cup standings.
Biggest disappointment: Casey appeared to have one hand on the trophy after three straight rounds of 5-under 66, but the veteran never really got going during a final-round 72. Casey made four bogeys on the day, including two over his first five holes to bring the field back into the mix. It's a disappointing result for a player whose decorated European Tour career has still translated into just one PGA Tour victory, that coming at the 2009 Shell Houston Open.
Shot of the day: McIlroy faced a crucial up-and-down on the 72nd hole, but his greenside bunker shot nearly went in before settling less than 2 feet away. The subsequent birdie gave him a two-shot lead over Casey, who still had two holes to play at the time.