2013 Masters scores and results: Jason Day surges to lead with 6 birdies

Day finished the day four strokes under par, while Louis Oosthuizen was unable to survive the cut.

By Adam Stites Apr 12, 2013, 7:45pm EDT

Jason Day of Australia will enter the third round as the leader at the 2013 Masters in Augusta, Georgia, after he earned the best score of the day on Friday. With six birdies in the second round, Day climbed from outside the top 10 to grab a one-stroke lead over Fred Couples and Marc Leishman.

Tiger Woods climbed the leaderboard to threaten the lead earlier in the round, but finished with bogeys on two of the final four holes to drop to a tie for seventh. With two rounds remaining, Woods will enter Saturday at three strokes under par, three strokes behind Day for the tournament lead.

Bubba Watson and Louis Oosthuizen, the two players that battled in a playoff at the 2012 Masters, both battled to stay above the cut line on Friday, although only one managed to do so. At six strokes over par, Oosthuizen's tournament is over, while the defending tournament champion, Watson, barely survived at four strokes over par.

Also surviving the cut was Tianlang Guan, the 14-year-old phenom from China, who finished Friday at three strokes over par, including one extra stroke for a time-delay penalty on hole 17.

Coverage of round three on Saturday is scheduled to begin on CBS at 3 p.m. ET.