FORT WORTH, Texas — Bryce Molder had a one-stroke lead with three holes to play Friday in the second round at Colonial when play was suspended because of darkness.

At 9 under, Molder was a stroke ahead of Webb Simpson and two in front of Jordan Spieth, the world’s No. 2-ranked player. Simpson and Spieth completed their second rounds at the Dean & Deluca Invitational.

Simpson was 8-under 132 after a 67. Spieth shot a 66 with four birdies in five holes after turning to the front nine.

The start of the round was delayed 51/2 hours after thunderstorms overnight that lingered into the morning. When the first groups teed off early in the afternoon, the sky was clearing and became bright and sunny.

CHAMPIONS: Rocco Mediate stretched his Senior PGA Championship lead to four strokes at Benton Harbor, Michigan, birdieing the final two holes for a 5-under 66.

Mediate, 53, opened with a 62 on Thursday to tie the tournament and course records set by Kenny Perry in the 2012 final round. On Friday, Mediate started play on the 10th tee and birdied the par-4 16th and 18th. He added birdies on the par-5 fifth, par-4 eighth and par-5 ninth.

LPGA: Ariya Jutanugarn remained in position for her third straight Tour victory, shooting a 4-under 68 to take a two-shot lead in the Volvik Championship at Ann Arbor, Michigan.

EUROPEAN: Danny Willett made six birdies in a tournament-record 29 on the front nine at the BMW PGA Championship at Virginia Water, England, setting up a 4-under 68 that gave the Masters champion a three-way share of the second-round lead.