<p>Tiger Woods is the Masters champion once again, turning back a surprising challenge Sunday with a shot of sheer magic and a birdie putt to win a playoff he never expected.</p><p>A spectacular finish of birdies and bogeys finally ended when Woods produced the most important shot of all _ a 15-foot birdie putt on the first extra hole to capture his fourth green jacket and finally put away the gritty Chris DiMarco.</p><p>Woods knew it was over when the ball was a foot from the hole, taking two steps to the left as a smile broke out on his face and his right fist punched the air with fury.</p><p>Everything else about this Masters was up in the air to the very end.</p><p>First came the most improbable birdie on the par-3 16th, when Woods skipped his chip shot up the slope and watched it crawl 25 feet down to the cup, where it paused for 2 full seconds before dropping.</p><p>Then came an even bigger surprise. The greatest closer in golf looked like a first-timer at Augusta National, making a mess out of the last two holes to finish with two bogeys and allow DiMarco one more chance.</p><p>Woods made sure that was all he got.</p><p>DiMarco again came up short of the green, and chipped up for a tap-in par. He took his hat off and ran his hand through his hair, crouched and kept looking up at Woods and down at his feet, afraid to watch, perhaps knowing what was about to happen.</p><p>When the ball disappeared, DiMarco walked slowly to Woods to congratulate him.</p><p>Woods closed with a 1-under 71 and won for the second time in a playoff at a major. The Masters gave him nine majors in his career, halfway home to the standard set by Jack Nicklaus.</p><p>But this didn't look like the same guy who won his first eight majors.</p>
