Tom Watson shot a 1-under-par 69 yesterday in San Antonio to maintain a four-stroke lead after three rounds of the $3 million Nabisco Championships of Golf, the richest tournament in the sport's history.

Watson, seeking to end a non-winning streak of more than three years, had his poorest round of the tournament, but so did most of his closest pursuers.

Ben Crenshaw, Australian Greg Norman and West German Bernhard Langer all made a move at Watson's lead at one point, but all fell back after double bogeys.

That left Mark O'Meara (66) and Mark Calcavecchia (69) in a tie for second at 204, four shots in back of Watson's 54-hole total of 10-under-par 200.

Norman (68) was next at 205.

The tournament proper is worth $2 million, with $360,000 to the winner. At the same time, the season-long Nabisco Grand Prix of Golf culminated in this tournament, with another $1 million in prizes, including $175,000 to the winner.

That player was Fred Couples, who shot a 3-under-par 67. He earned another $500,000 for the charities sponsored by the PGA's Las Vegas Invitational.

Eight players representing eight separate tour events played for $1.47 million during the first three days here. The tournaments represented were picked on the basis of a yearlong points race.

U.S.-Japan:

In Kobe, Japan, Masahiro Kuramoto eagled the par-5 ninth hole en route to a bogey-free 8-under-par 64 to tie the course record and take a three-stroke lead in the individual competition in the $464,000 men's event.

First-round leader Andy Bean mixed an eagle, six birdies, two bogeys and a double bogey for a 68 and second place at 204 after three trips over the 6,850-yard, par-72 Sport Sinko Country Club course.

In Ina, Japan, a 14-member U.S. team won four matches, drew once and lost twice to take a 9-5 lead in the $200,000 women's tournament.

Americans Sherri Turner and Colleen Walker had 2-under-par 70s to share a one-stroke lead in the individual competition. The U.S. led the team competition.

Centel Classic:

In Tallahassee, Fla., Joey Sindelar shot a 5-under-par 67 and Keith Clearwater shot a 68 to move into a tie with Tom Sieckmann at 9-under-par 207 heading into the final round of the $500,000 PGA event.