CASTLE ROCK, Colo. – In preparation for the PGA Tour’s return to , Jack Nicklaus returned 10 times and re-did every green and every bunker. When he visited on Wednesday, he told officials of the club that he thought he’d finally gotten it right.

“I love Castle Pines,” Nicklaus said, “It’s a very special place in my heart.” The course is more than 600 yards longer than when the International was last held here in 2006, stretching to 8,130 yards in the thin, mountain air, but as the old saying goes, these guys are good. On Thursday, Keegan Bradley shot 66, surpassing the previous course record held by Brady Duval, son of David, on May 23.

Bradley’s record didn’t even last 24 hours as Adam Scott torched Jack’s handiwork to the tune of 9-under 63. Here are five things to know from the second round of the BMW Championship. Adam Scott said he’s reminded on an almost daily basis that he’s one of the old guys on the PGA Tour these days.

But playing this week at the BMW Championship at Castle Pines Golf Club has made the 44-year-old Australian a bit nostalgic. Twenty-four years ago, Scott was a newly minted pro and accepted a sponsor’s invite to the International. He had played in the British Open a few weeks earlier but essentially it marked his first start in the U.

S. on the Tour. Another reminder that Scott's been in this racket for an awfully long time: he and Jason Day are the only two players in the 50-man field this week who previously competed here.

.