Cathy Gerring shot her third straight 69 yesterday and built a three-stroke lead after three rounds of the LPGA World Championship.

Gerring goes into today's final round of the 16-player invitational in Cely, France, with a 9-under-par total for 54 holes. Betsy King also shot 69 and moved into second place at 210. Japan's Ayako Okamoto, who trailed Gerring by one after a second-round 66, ballooned to an 80 and fell 12 back.

"I played good golf today," Gerring said. "All my bad shots were long, and that can happen any time when you attack like I do."

She had two bogeys and five birdies, all with putts of less than 10 feet. The field, on a new 6,155-yard course, consists of 13 Americans, plus Okamoto, Britain's Trish Johnson and France's Marie-Laure de Lorenzi.

King, who won the LPGA World Championship last year at Buford, Ga., had six birdies and three bogeys yesterday and said: "I'm still in there with a real chance. But Beth {Daniel} is only a shot behind me and she's capable of anything this year."

Daniel, No. 1 money winner on the U.S. tour, had the day's best round (66) and vaulted into third place at 211. She birdied six of the first seven holes.

Patty Sheehan shot a 69 for ninth place at 216. She appears to have lost her chance to catch Daniel in the player of the year ratings. This is the next-to-last event to count in the rankings, with only the Mazda Japan Classic left.

PGA Tour: Bob Tway had nine birdies, shot 31 on the back nine and posted 7-under-par 65 for a 24-under sum of 264 and a three-shot lead after 72 holes of the 90-hole Las Vegas Invitational.

"It's the first time I've ever been in the lead going into the last round," said Tway, in his sixth season on the tour. "I kind of like it."

In ideal weather, Steve Elkington tied the Las Vegas Country Club course and tournament record with a 62. Gene Sauers and Mike Holland shot 63s. Mark O'Meara, a winner last week and the Las Vegas leader through the second and third rounds, shot 69 and dropped into a tie for second with John Cook.

Austrian Open: Lanny Wadkins eagled the last hole to shoot 4-under-par 68 and tie Bernhard Langer for the third-round lead at 203 on the Jack Nicklaus-designed Gut Altentann course in Salzburg.

Langer went into the round ahead by four shots but a bogey on the 17th, where his ball found a bunker, sent him to a 72 for the round. Rick Hartmann, an American regular on the European circuit, turned in a 66 and moved into third place with a 206.

Nicklaus shot 70 for 213.

Dunhill Cup: England (Mark James, Howard Clark, Richard Boxall) and Ireland (Philip Walton, Ronan Rafferty, David Feherty) reached today's final of the $1 million Dunhill Cup on the Old Course in St. Andrews, Scotland.

England, the 1987 champion, beat Japan, 2-1, on extra-holes wins in 18-hole matches by James and Clark. Ireland, the 1988 winner, downed New Zealand, 2 1/2- 1/2.

The championship round in the medal-match play event will be at 36 holes.

Seniors: An old-fashioned West Texas wind shook up the leader board in Abilene and left Bruce Crampton with a three-shot lead after two rounds of the Gatlin Brothers Southwest Classic at Fairway Oaks. Crampton had the day's low round, 68, in wind gusting past 25 mph, for 9-under-par 135 to 138 for runner-up Robert Gaona.