Updated

A look at the key hole in Thursday's first round of the Masters:

HOLE: No. 15

YARDAGE: 530

PAR: 5

STROKE AVERAGE: 4.45

RANK: 18th

KEY FACT: The easiest hole on the course was a must birdie for those on the leaderboard. The top six players all made birdies on 15, and for Rory McIlroy it was his last birdie of the day.