BOLLES THRIVING, REST OF ROOKIES STRUGGLING»

GA.» PGA Tour ST. SIMONS ISLAND, rookie Austin Cook made a 6-foot birdie putt on his final hole for an 8under-par 62 and a one-shot lead going into the weekend at the RSM Classic.

Cook has gone 36 holes without a bogey on the Plantation and Seaside courses at Sea Island Golf Club. He played Seaside — the site of the final two rounds in the last PGA Tour event of the calendar year — on Friday and ran off four straight birdies on his opening nine holes.

“We’ve just been able to it hit the ball really well,” Cook said. “Speed on greens has been really good and getting up-and-down has been great. I’ve been able to hit it pretty close to the hole to make some pretty stressfree putts. But the couple putts that I have had of some length for par, I’ve been able to roll them in. Everything’s going well.”

The 26-year-old former Arkansas player was at 14-under 128 and had a one-stroke lead over Brian Gay, who shot 64 on Seaside. No one else was closer than five shots going into the final two rounds.

• Sung Hyun Park made five straight birdies and seized control late in the round with an eagle for a 7-under 65 and a three-shot lead in the CME Group Tour Championship.

The lead might have been larger except for Park’s three-putt bogey on the 18th hole at Tiburon Golf Club.

Not only was she three ahead of Caroline Masson and Sarah Jane Smith, none of the other players vying for all the awards was within five shots. Lexi Thompson shot a 67 and wound up losing ground. She was six shots behind.

• Defending champion Matthew Fitzpatrick shot a second straight 5-under 67 to secure a one-stroke lead halfway through the European Tour’s Tour Championship.

At 10 under after two rounds on the Earth course of Jumeirah Golf Estate, Fitzpatrick was edging English compatriot Tyrrell Hatton, whom he beat by one shot to win the title last year.