What it means: McIlroy seemed out of the mix before an improbable hole-out eagle on No. 16 was followed by a birdie on No. 18. That got him into a playoff with Moore and Chappell, and after Chappell exited on the first extra hole the remaining two combatants went toe-to-toe for a few more rounds. An errant approach to the fourth extra hole by Moore opened the door for McIlroy, who rolled in a 20-foot birdie putt to win both the tournament and FedEx Cup title.
Round of the day: McIlroy got off to a relatively slow start, but closed with a flourish to post a 6-under 64. Birdies on Nos. 10 and 11 were followed by four straight pars before McIlroy jarred his approach on No. 16 for eagle. He hit a dramatic rescue shot from the trees on the 72nd hole to set up a closing birdie, then stuffed his approach on the first extra hole before ultimately outlasting Moore to clinch the season-long title.
Best of the rest: Moore capped an impressive postseason run with a 64 in the final round that left him just short of the tournament title but might have been enough to snag the final Ryder Cup spot. Moore rolled in putt after putt, including a lengthy birdie on No. 16 and another putt of similar length on the same hole to keep his hopes alive during the playoff. It was a remarkable effort that quickly lifted him into contention for Davis Love III's final pick.
Biggest disappointment: On a day filled with red numbers, Johnson wasn't able to get anything going. Two birdies were countered by three bogeys and a double bogey, as Johnson shot a 3-over 73 to slip from the lead into a tie for sixth. It was a tough way to finish a stellar season, and when McIlroy won the playoff it meant that the FedEx Cup title Johnson appeared to have coming his way instead went to the Ulsterman.
Shot of the day: McIlroy watched Moore roll in a lengthy par putt on the fourth extra hole to keep things interesting, then stepped up and calmly rolled in an $11.5 million birdie putt of his own that was never in doubt.
Quote of the day: "I just wanted to go out here and play the way I've been playing." - McIlroy