AUGUSTA, Ga. (AP) - Chad Campbell led an assault on the scoreboard, shooting a 7-under-par 65 to take the top spot after the opening round of the Masters.

The conditions were ideal Thursday: warm and sunny, a slight breeze, soft greens and inviting pin positions. Nineteen players shot in the 60s and 38 players in the 96-man field broke par.

Campbell birdied the first five holes and had another streak of four in a row, putting himself in position to challenge the tournament record, 63. But he bogeyed the final two holes.

Still, Campbell holds a one-stroke lead over Jim Furyk and Hunter Mahan after day one. Tiger Woods struggled with his putter but still managed 70 in his first major since last year's U.S. Open.

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