Tiger Woods enjoyed a yeoman round of golf by putting up a 72, but there were two other golfers with Bay Area ties who did better.
Kevin Chappell enjoyed a solid round of golf at one-under. Chappell's eagle on the 13th hole propelled him up to the near top of the leaderboard, and he currently sits in the top 15 going into Friday. That eagle (plus four birdies on the 2nd, 9th, 12th and 14th holes) negated five bogeys.
Nick Watney struggled on the formidable 10th and 11th holes to get his only two bogeys, but he did birdie the sixth, 13th and 14th holes to get into the clubhouse in a tie with Chappell.
Currently there are two golfers leading the way at -4. Louis Oosthuizen is in the clubhouse with a great round of four-under after birdieing the final two holes, and Lee Westwood stands at a similar position.
The full leaderboard at the 2012 Masters can be found here.