Six players hold a share of the lead after the opening round of the Charles Schwab Challenge in Texas, with Séamus Power five shots behind after his 69.
Tom Kim of South Korea wrapped up the final hole of a six-under-par 64 after a delay of more than two hours, making him one of sextet at the head of the field alongside Kim, JJ Spaun, Ryan Gerard, Andrew Putnam, Matt McCarty and Lee Hodges.
Power, starting on the 10th, birdied two of this last three holes, which included holing his 25-foot approach on the ninth.
His only dropped shot came on the 17th.
The first round at Colonial Country Club was suspended at 4.15 pm local due to a dangerous weather situation and did not resume for another two hours. At the time of the interruption, Gerard and Putnam had the clubhouse lead, while Kim had just the par-four ninth left to play. The three-time PGA Tour winner two-putted from 52 feet to save par.
Before the delay, Kim made his run by birdieing seven holes in an eight-hole stretch between 14 and 3. A bogey-birdie-bogey run then halted his momentum.
Kim, 23, won three times on the PGA Tour by the age of 21 but has fallen to number 144 in the world rankings.
Putnam, who had a bogey-free day, seeks his second PGA victory and his first since the 2018 Barracuda Championship. Gerard's only win on tour, coincidentally, came at the Barracuda Championship last year. He mixed eight birdies with two bogeys on Thursday.
Spaun birdied 18 after the suspension to conclude a bogey-free round. After winning the Valero Texas Open last month, he's searching for another strong finish to propel him into next month's US Open, where he's the defending champion.
A 12-man logjam at five-under 65 included past major champions Keegan Bradley, Brian Harman and Gary Woodland, along with Alex Smalley, who's seeking his first PGA Tour victory two weeks after he was the surprise 54-hole leader of the PGA Championship.
