2000 British Open
We'd say it's pretty badass to win a Grand Slam before the age of 25 (only one man's ever done it after all). In 2000, Woods captured the final quarter of the Slam to become only the fifth golfer in history to accomplish the elusive feat. So how did he do it? True to his Tiger nickname, he mauled the competition. Woods bested second by 8 strokes and hit 19 under par, the lowest score in any major tournament.