ATLANTA — Rory McIlroy’s rolling stroll up the final fairway Sunday at the Tour Championship contained little of the theater of last year’s walk, when he was nearly swallowed up by the swarm of spectators that fell in line behind Tiger Woods, who was closing out his first win since 2013.

Playing in the final pairing with Woods, McIlroy receded into the background, finishing six strokes back in a tie for seventh. McIlroy was back in the final pairing this year, playing alongside top-ranked Brooks Koepka, who had beaten him by six strokes when they played in the last group last month in Memphis.

This time McIlroy finished head and shoulders above everyone.

McIlroy, who started the final round one stroke behind Koepka, won the tournament and the FedEx Cup for the second time in four years. He posted a four-under 66 — tying Adam Scott, the sixth-place finisher, for the low closing score — for a 72-hole total of 18-under.

McIlroy, the 2016 champion, finished four strokes ahead of Xander Schauffele (70) to collect the $15 million winner’s bonus. In the 13-year history of the playoffs, McIlroy is the second player, after Woods in 2007 and 2009, to win multiple FedEx Cup championships.