BIRMINGHAM, Ala. -- David Frost has the lead and Fred Couples draws the biggest crowds. Theyll lead the pack into the final round of the Regions Tradition with an early start and a sizable contingent of contenders. Frost birdied the 16th and 17th holes Saturday en route to a 6-under 66 and a one-stroke lead over Couples after the third round of the major championship at Shoal Creek. "It will be a great final day," said Couples, whose gallery as usual has been by far the largest for each round. "Theres a lot of guys. Its the kind of course where someone can shoot 7 under and go from 7 or 8 under to 14 under. "But I think someone thats 10 -, 11-under par will have a good round and probably win, and Im going to do everything I can to put pressure on the guys on the leaderboard and see what happens." Frost, the South African who won the Toshiba Classic in March for his fourth Champions Tour title, had four birdies on the final eight holes to move to 12-under 205 in the major championship. He said being able to sleep with the lead isnt the biggest thing about his situation. "Its more just being comfortable with your game," Frost said. "Getting into position like this makes you become a little more at ease the more you get there, but my games been good this year. "So Im quite excited about (Sunday)." The final round will have a two-tee morning start because of expected rain. Couples, the Presidents Cup captain and World Golf Hall of Famer, shot a bogey-free 68. "I played the par 5s even, which is unusual for me," he said. "I played them very poorly actually, made a couple of good up-and-downs to save pars. Then the other 14 holes, I played really well. Id like to say I wasnt in too much trouble, basically because when I drove it in the rough, I judged my second shots pretty well out of the rough. "(Sunday), Im going to have to hit more fairways and play a little bit better from tee to green. When I did hit a good shot, it was a really good one and I made birdies. He managed to save par on No. 6 when his drive went right into the creek. "I cant sit here and kick myself," Couples said. "Im one behind Frosty. Im in good shape." Sixty-one-year-old Morris Hatalsky, third-round leader Duffy Waldorf and Michael Allen were two strokes back.