TUCSON, Ariz. -- The final group in the Chrysler Classic of Tucson is certain to be eye-catching, colorful and a study in contrasts.

Twenty-year PGA TOUR veteran Duffy Waldorf shot a bogey-free 65 on Saturday to reach 19 under, good for a two-shot lead over long-hitting rookie Bubba Watson after three rounds.

"His shots go so far that they're hard to follow," said Waldorf, whose iron play has carried him this week. "But I think this course plays well to everyone, whether you're a short or long hitter. If you get on with your irons and putt, you have a good chance."

They'll make an eye-catching pair.

Waldorf, known for his bright clothes, plans to wear a blue geometric patterned shirt with matching blue shoes. Watson, a lefty who also shot 65, has thrilled fans all week by pulling out his pink-shafted driver and walloping the ball.

First-round leader Mark Wilson shot 67, one stroke behind Watson, and got into the last group. Heath Slocum, the 2004 champion in Tucson, had his best round this week, a 65 that moved him to 15 under and into fourth.

John Cook (65), Gabriel Hjertstedt (65), David Branshaw (66) and Jerry Kelly (68) were tied for fifth at 14 under.

For all the talk about his booming drives, the 25-year-old Watson still hasn't made a bogey this week. He had 29 putts in the third round and 27 in the second, and hit every green in regulation Saturday.

"That means you're hitting the ball really well," Watson said. "It gives you confidence when you go to the driver, your irons, just with everything. And now I've gone three rounds without a bogey. That helps too."

Conditions were ideal for low scores, setting up what should be a thrilling final round. Temperatures were in the low 70s on a sunny day, there was no measurable wind and birdies were abundant at Omni Tucson National, where there's no significant rough to discourage an aggressive tee shot.

"The course is immaculate," Slocum said. "It's in perfect shape for low numbers."

The 43-year-old Waldorf hasn't won since 2000 at what is now called the FUNAI Classic at the WALT DISNEY WORLD Resort and he's leading after 54 holes for the first time since the 2002 Phoenix Open. His last top-10 finish was a tie for seventh in the 84 LUMBER Classic two years ago.

The four-time PGA TOUR winner finished 153rd on last year's money list, losing his fully exempt status for the first time since 1990. Waldorf was cautious about looking ahead, but he was asked what a victory would mean.

"Obviously, it would get my career back on track," he said. "It's been six years."

Waldorf birdied five of the first six holes, consistently placing his iron shots within 15 or 20 feet -- or closer. It didn't hurt that he swept in a 25-foot putt from the fringe on No. 7, a 247-yard par 3.

He has made only two bogeys in the tournament, both in the second round. He credited recent swing adjustments that helped him establish better rhythm, especially when he's swinging an iron from the fairway.

"The irons are really working for me. I feel like I can hit every pin," Waldorf said.

Watson spent another day awing fans with his fluorescent pink driver and its whopping shots. He hit a 367-yard shot off the tee at No. 18, carrying a lake to take the water completely out of play and set up a 126-yard approach and a closing par.

He also cut the 606-yard, par-5 15th hole in half with a 333-yard drive, then hit a 3-iron 263 yards and two-putted. And he had a 356-yard drive on the par-4 sixth to leave a 69-yard pitch to the green, leading to another birdie.

Waldorf is no threat to outdrive Watson, and he knows it.

"There's not going to be any chance for me to sneak up on him," Waldorf said. "I'm going to blow one out there and say, 'Wow. I'm only 40 yards behind. Only 35? Hey, I did good."

Divots: Waldorf has held or shared the 54-hole lead 11 times, winning the 1995 Valero Texas Open and 1999 Buick Classic. ... Slocum survived a double bogey after hitting into the pond on the par-4 third and made five birdies on the back nine for a 30. "I hit it beautifully the last 12 or 13 holes," he said. ... The last winner to go 72 holes without a bogey was Lee Trevino in the 1974 Greater New Orleans Open.

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