NAPLES, Fla. — Angel Yin was making putts from across the green and threatening to build a big lead until Jeeno Thitikul finished eagle-birdie for a 9-under 63 to share the lead Saturday going into the final round of the CME Group Tour Championship with $4 million on the line.

Yin had a 69 after another day of big putts and one chip-in from some 60 feet for eagle on the par-5 sixth hole that put her comfortably ahead at Tiburon Golf Club.

She holed a 30-footer on the eighth hole, another birdie from about 25 feet on the ninth hole and another one from the 30-foot range on the 12th.

Thitikul seemed to be an afterthought until she lit it up on the back nine for a 30. She started the back nine with three straight bogeys, but made up quick ground at the end with her eagle on the reachable par-5 17th and a birdie on the closing hole.

The birdie briefly gave her the lead until Yin made birdie on the 17th to join her. They were tied at 15-under 201, three shots head of Ruoning Yin, who birdied her last two for a 66.

Charley Hull had seven birdies in her round of 66 and was at 11-under 205, along with Narin An of South Korea.

Nelly Korda, who got back into the mix on Friday after a sluggish start, lost ground with a 69 on a pleasant day that left her six shots back going into the final round. Korda has won four of her seven LPGA titles this year coming from behind. This could be a tall order.

At stake is the richest payoff in women’s golf, $4 million to the winner, nearly as much as Korda has made all year in her seven-victory season.

Thitikul already picked up a $1 million bonus this week through the Aon Risk-Reward Challenge, a competition based on how players score on a designated hole each week. Now she could leave Florida with a total of $5 million.

“Actually, $1 million is really good enough for me,” Thitikul said. “If I can get more, it’s definitely going to be a nice, because as my team know I spend a lot of money. That’s why I have to keep playing good golf, like spending on shopping day.”

Angel Yin heard plenty of cheers for her long birdie putts, and the chip-in for eagle. She also was helped by a couple of pars after bad drives. She went well to the left at No. 10, did well to blast out on a blind shot just short of the green and then got up-and-down with a pitch to 4 feet.

And then on the 13th, another tee shot went well to the left. She tried to get it back in play from just in front of some bushes, and from 50 yards hit wedge to about 15 feet. She holed that putt, too, that kept her in front.

“I’m scoring still,” Yin said. “Making some mistakes, but saving a bunch, so a lot of positives.”