Augusta, Georgia - Chad Campbell was joined by fellow American Kenny Perry at the top of the leaderboard at the halfway point in the Masters on Friday, on a drama-filled day at Augusta. Campbell, who led by one shot after round one, fired a 3-under-par 69 to set the pace on 9-under-par, while Perry joined him late on with a fine bogey-free 67.

The pair were one shot clear of Argentine Angel Cabrera, who fired a second successive 68, while former Open champion Todd Hamilton was two shots further back.