Atlanta, GA -- (Sports Network) - Camilo Villegas rallied from a five-shot deficit on Sunday and capped the comeback with a two-putt par on the first playoff hole to defeat Sergio Garcia and win the Tour Championship.

Villegas closed with a four-under 66, that included eight birdies, to post seven-under-par 273. Garcia, playing one group behind Villegas, shot one-over 71 to join Villegas in the playoff.

World No. 2 Phil Mickelson had a chance to get into the playoff, but missed a 19-foot birdie putt on the 18th at East Lake to close a round of one-under 69 that left him tied for third at minus-six.

Villegas teed off first in the playoff and found the putting surface at the par-three 18th. Garcia missed badly to the right and had a delicate shot over a bunker.

Garcia nearly hit a perfect chip, but it landed just short of the green and rolled back into the sand.

Villegas rolled his birdie effort inside three feet and kicked in the short par putt to put the pressure on Garcia.

The Spaniard left his par-saving chip well short giving Villegas his second straight win as he also won the last playoff event, the BMW Championship.

"I wish I could go there tomorrow," said Villegas of his native Colombia. "But I have to go to Japan and defend my title there. I'm proud of myself and the team behind me. I cannot emphasize how hard we've worked."

Garcia was hoping for his second win of the season as he won the Players Championship earlier this year. He shared second place at the PGA Championship and at the first FedEx Cup playoff event, The Barclays.

"Obviously, I just didn't play well enough today," admitted Garcia. "I just wasn't myself. I had a hard time trusting myself and believing in what I am doing. Overall, Camilo played great and he deserved it."

Mickelson was joined in third place at six-under-par 274 by his Ryder Cup teammate Anthony Kim (69).

Singh closed with an even-par 70 to share 22nd place at plus-nine, but it was enough to win the $10 million annuity that comes with winning the FedEx Cup.

"I was nervous because everybody kept telling me I had to walk straight and make sure you don't fall over or miss your tee time," said Singh of winning the FedEx Cup. "Even signing the scorecard was nerve-wracking today to make sure I didn't make a mistake. I'm really, really happy I've won this."

Villegas started the day five shots behind Garcia. He closed that gap with birdies on three and four. However, Villegas stumbled to a double-bogey on the par-three sixth and followed with a bogey on seven.

The Colombian rebounded by draining three straight birdies from the eighth to jump back to minus-five, where he was one shot back.

Garcia bogeyed four and seven to slide to minus-six where he was joined in the lead by Mickelson, who birdied the eighth to go with eight pars on the front nine, and Kim, who birdied the second to with eight pars on the opening nine.

Garcia fell one back with a bogey at 10. He recovered that lost stroke with a birdie on the par-four 12th. However, he was one behind Kim, who birdied the 11th from 21 feet out.

Villegas birdied the 12th and followed with a 42-foot birdie putt on 13 to join Kim in the lead.

Kim missed the green at the 14th and that led to a bogey which gave Villegas the lead my himself. Kim parred the final four holes to end one back.

Garcia got up and down for birdie from just off the green at the par-five 15th to join Villegas at minus-seven.

Villegas hit a tree off the tee at the 16th. His ball ricocheted into the fairway, but he still made bogey after missing the green with his second shot.

At the 17th, Villegas drained a 12-foot birdie putt to get back to seven- under. At the last, he two-putted for par from 49 feet.

"Yeah that was a crazy round. I got off to a great start, then I make double- bogey on six and bogey seven," Villegas said. "But man, I was proud of myself after that. I just came back awesome."

Garcia two-putted for par on the last three holes to force the extra session.

Mickelson three-putted the 11th for bogey to slide two-back at minus-five. He briefly climbed back into a share of the lead with birdies at 13 and 15, but missed the green at 16 and that led to a bogey that left him at minus-six. Mickelson parred the last two to end there.

Ben Curtis was the only other player in red figures as he closed with a two- under 70 take fifth at two-under-par 278.

Former major champions Jim Furyk (69), Mike Weir (70) and Ernie Els (69) shared sixth at even-par 280.