American Chad Campbell, seeking his first major title, clung to a three-stroke lead during Friday's second round of the 73rd Masters after a pair of bogeys in windy Amen Corner set him back. Campbell birdied two of the first four holes, added another at the par-5 eighth and yet another to open the back nine to stretch his lead to five strokes at one stage before Augusta National Golf Club began to take revenge. Breezes returned after vanishing during round one, changing perfect scoring conditions into the usual swirling trouble offered in the Georgia pines.

Campbell had two birdies and a par in round one through Amen Corner, the difficult three-hole stretch starting at the 11th hole, but suffered bogeys at 11 and 12 to see his lead shrink to three strokes. The nearest rivals were two compatriots u2013 Jim Furyk, who tees off in the day's penultimate group, and 48-year-old Kenny Perry, who began with back-to-back bogeys to match Furyk on six-under par after eight holes.