PALM BEACH GARDENS, FLA., AUG. 7 -- Lanny Wadkins and Raymond Floyd have earned a reputation over the past 15 years for being two of the most formidable head-to-head players in golf. They will put those reputations on the line during the final two rounds of the 69th PGA Championship.

Wadkins and Floyd, who have won a combined 36 tournaments and $6.28 million in their careers, played with patience through searing heat today, each carding a 2-under-par 70 on the PGA National Champions course to share the lead at 4-under 140 midway through the year's final major championship.

Tim Simpson, who followed an opening-round 71 with a 70, was in a tie for second with Jeff Sluman (69), who lipped a three-foot putt at 18 for a share of the lead.

They were followed by a group at 142 that included Wadkins' brother, Bobby, the first-round leader, and past major-tournament winners Seve Ballesteros, Larry Nelson and Ben Crenshaw. Bobby Wadkins, a nonwinner in 13 years on the PGA Tour, eagled the par-5 sixth hole out of a bunker but dropped back with a bogey-bogey finish for a 74.

Fred Funk, the University of Maryland golf coach who was one stroke off the first-day lead at 69, soared to a 79 and finished the round eight behind. "It was fun being up there {among the leaders}," Funk said. "I had hoped I could have done more. I wanted to play the way I can play, and I didn't."

Additionally, Arnold Palmer (75) and Jack Nicklaus (73) pleased their legions of fans by qualifying for the final two rounds.

"I've played a lot of golf with Raymond," said Wadkins, whose only major victory came in the 1977 PGA at Pebble Beach. "We're good friends and our families are good friends. But the last two times Raymond has won a major {in the 1982 PGA and the 1986 U.S. Open}, I've finished second. It's time to turn that around, but, of course, Raymond may not agree."

"If I could keep one thing the same over the last two rounds," Floyd said, "it would be my attitude. When I start to lose it on the course, I have a tendency not to get it back, especially when the conditions are trying.

"I lost my rhythm today -- maybe the heat got to me -- but I fought and got it back and that is a good sign for me."

Floyd had good reason to be distracted and fatigued by the temperature. Unofficially, it measured 109 degrees on the course at 4 p.m.

Floyd, a two-time PGA winner, bogeyed the par-4 fifth hole -- his 14th hole of the day because he started on the back nine -- and hit a poor second shot at the par-5 sixth.

Floyd said that was when he could have run into the kind of slump that turns a good round into a bad one. But he hit a sensational third shot over two trees to save par and then made a six-foot birdie at the next hole.

Lanny Wadkins, playing in the afternoon when the chemical-ravaged greens were at their worst, moved a shot in front of Floyd with a birdie at the fifth hole (his 14th). But at the tough, par-4 eighth he hooked his tee shot into the woods and was fortunate to make a bogey.

Only 10 players broke par for 36 holes. Mark McCumber (69) and Bobby Clampett (72) were the only other players in red figures, finishing the day at 1-under 143.

But a number of the game's familiar names were well off the lead -- or worse.

British Open champion Nick Faldo shot a 73 for a 146 total, a figure matched by Curtis Strange after a 76. Payne Stewart was at 147 following a 76.

Nicklaus was joined at 149 by Tom Watson (79), Tom Kite (77) and defending champion Bob Tway (71). Watson began the day two shots off the lead.

"I'd say the rough is more than deadly," Tway said.

At 7-over 151, barely making the 36-hole cut, came Greg Norman (78), who lost this title a year ago when Tway sank a bunker shot on the 72nd hole, U.S. Open champion Scott Simpson (73) and Palmer.

Many notable players, however, didn't make it. Paul Azinger (77-159) and Ian Woosnam (75-161), leading money winners on the American and European tours, respectively, missed the 151 cutoff, as did Masters champion Larry Mize (81-156).

Funk said he started well, getting to 4 under after the fourth hole and playing well until the 557-yard 11th. "I struggled there {making bogey 6} and it went downhill after that," Funk said. "My drives were real bad all day. On each hole I was three feet in the rough, and all I could do was wedge it out 80 yards up the fairway. I hit a couple left and a couple right, all were with about a yard of the fairway, but that wasn't good enough."

Seniors: In Concord, Mass., Chi Chi Rodriguez and Harold Henning shot 7-under-par 65s to share the first-round lead at the $250,000 Senior PGA Classic at Nashawtuc Country Club. Jimmy Powell and Orville Moody were next at 67.

Rodriguez, the leading money-winner on the seniors tour, birdied seven holes, including the 17th and 18th, in his bogey-free round.

LPGA: The second round of the Henredon Classic in High Point, N.C., was postponed by rain. Tournament officials planned to hold the second round today and complete the tournament Sunday, reducing it to a 54-hole event.