Bryce Molder was joking around with playing partner Scott Langley as the sky darkened over Colonial.

“It was almost like they were about to blow the horn for darkness,” Molder said.

Except it was early in the morning after Molder and Langley began play in the first group off the 10th tee Thursday in the Dean & Deluca Invitational at Colonial in Fort Worth, Texas.

“It wasn’t dark to where you can’t see the ball flight, but you’re kind of reading putts looking a little funny at it,” Molder said. “It was dark. It was weird. It was almost like late, late, late in the day.”

They were on the 16th green next to the clubhouse when play was stopped because of rain and lightning in the area. After the 75-minute delay, when clouds thinned considerably, Molder had six birdies in his last nine holes and the 64 held up for a 1-stroke lead over Patrick Reed, Anirban Lahiri and Webb Simpson.

Ryan Palmer, the Colonial member whose caddie James Edmondson is the four-time club champion, joined Jason Dufner, Martin Piller and Kyle Reifers in a tie for fifth at 66.

“It’s a golf course I can step on to each tee and don’t even need my yardage book,” Palmer said. “To shoot 4-under out here on a Thursday, you’re not hurting.”

Jordan Spieth, the world’s No. 2-ranked player, was among nine players at 67 after his breezy afternoon round when he missed the first six fairways. But he hit eight of the first nine greens and 14 overall while carding only one bogey — at the 244-yard, par-3 fourth hole.

Champions Tour

Rocco Mediate played the first 13 holes in 9 under and closed with five pars for a 62 to match the Senior PGA Championship and Harbor Shore records in Benton Harbor, Mich.

Taking advantage of greens softened by overnight rain, Mediate matched the marks set by Kenny Perry in the 2012 final round.

The 53-year-old Mediate capped a front-nine 29 with an eagle on the par-5 ninth and added birdies on the par-3 11th and 13th holes at Jack Nicklaus-designed Harbor Shores.

Gene Sauers had a bogey-free 63. Mike Goodes shot 64, and Kenny Perry, Kirk Triplett and club pro John DalCorobbo were another stroke back.

Perry played alongside Mediate and two-time defending champion Colin Montgomerie, who had two late bogeys in a 67.

LPGA Tour

Christina Kim took advantage of favorable conditions in the morning, shooting an 8-under 64 to top the leaderboard in the inaugural Volvik Championship in Ann Arbor, Mich.

Ariya Jutanugarn, coming off consecutive wins on the LPGA Tour, was a shot back after her morning round at Travis Pointe. The 20-year-old Jutanugarn is coming off a victory at the Kingsmill Championship after becoming the first Thai winner in tour history in Alabama.

The course conditions got tougher later in the day when the wind picked up and the pins got tougher to shoot for on drying greens.

Minjee Lee, So Yeon Ryu and Marina Alex shot 68, putting them 4 shots behind Kim.

Second-ranked Inbee Park’s lingering thumb injury led her to withdraw from the tournament.

European Tour

Y.E. Yang, Scott Hend and Joost Luiten shot 7-under 65s to share the lead after the first round of the BMW PGA Championship at Wentworth in Virginia Water, England.

Danny Willett, the Masters champion and the only member of the world’s top 20 competing in the tournament, was a stroke behind after a bogey-free 66 in good scoring conditions at the European Tour’s headquarters.