He'll approach the last round as he the first three.
"Nothing changes,'' he said. "Don't see the scores. Don't see the players. Just make birdies and go (to the next hole).''
That worked to perfection for most of the third round.
He birdied the par-5 seventh for a third straight day and, after his ball skipped through a sand dune and landed in front of the 11th green, Romero lengthened his lead to two shots with a birdie there - also his third straight on that par 5.
Romero extended his lead to three with a birdie on the par-3 14th. When Romero found trouble in a sand dune alongside the 15th hole, he simply chipped up to 2 feet and saved par.
Romero, though, could escape problems down the stretch, missing similar putts on both closing holes.
Watson's run was fueled by consecutive birdies on the 11th and 12th holes that got him two shots behind. But a bogey on No. 17 dropped him back. Watson is seeking his first tour victory since winning three PGA Tour titles in 1984.
Ozaki stayed close enough to Romero for most of the round. He fell back, though, when he drove into a dune left of the 15th fairway, could not hack his way out on his next shot and made double-bogey 6.
The Atlantic wind that blasted the course Thursday - and reminded some competitors of what they faced in the 1991 Ryder Cup matches here - were much calmer Saturday.
"Not that it laid down,'' said Tom Kite, who shot the tournament's best round with a 5-under 67. "I mean it always blows here, even when it doesn't blow.''
Once again, officials shrunk the 17th, this time to 158 yards, its lowest total of the tournament and 39 yards under its scorecard listing.
Divots: Bruce Lietzke opened strongly with four birdies on his first seven holes for front-nine 32. However, he faded with four bogeys on the final nine to finish at even-par 72. ... Club pro Bill Schumaker on his first-round 80 played amid 30 mph winds: "I'm from Indiana,'' he said. "If we got wind like that we don't even go outside, let alone play in it.''