PONTE VEDRA BEACH, Florida (AP) — A brief look at the first round of The Players Championship:
LEADING: Roberto Castro shot 9-under 63, tying the course record held by Greg Norman (1994) and Fred Couples (1992).
TRAILING: Rory McIlroy and Zach Johnson at 66.
TIGER TALES: Tiger Woods had a 67, the first time in 16 Players appearances that he broke 70 in the first round.
THE ISLAND: Twelve players hit tee shots into the water on the island-green 17th hole, which played 124 yards. William McGirt, Erik Compton and Colt Knost each hit two shots in the water.
THE MARGIN: Castro's three-shot lead tied the record for the opening round. Billy Ray Brown led by three shots in 1992.
SHOT OF THE DAY: Michael Thompson hit 3-iron from 233 yards for a hole-in-one on No. 8. It was only the sixth ace on the eighth hole and the first in 13 years.
SECOND SHOT OF THE DAY: Jason Dufner holed out for an eagle on the 18th with a 9-iron for only the third eagle in tournament history at Sawgrass.
NOTEWORTHY: Rory McIlroy had never broken par at Sawgrass. He opened with a 66.
QUOTEWORTHY: "It doesn't favor anybody. The course can beat up anybody." — Ben Curtis, who had a 69.