Brooks Koepka birdied the final hole to move into the lead through the second round of the Tour Championship on Friday at East Lake Golf Club in Atlanta.
Koepka shot a 3-under-par 67, leaving him with a net total of 13 under based on the weighted scoring system implemented for the FedEx Cup playoff finale.
He is up one shot on Northern Ireland’s Rory McIlroy, who birdied the final two holes, and Justin Thomas.
McIlroy shot a 67 while Thomas posted a 68.
For the round, Thomas was 3 under through eight holes, but he proceeded to make all pars the rest of the way other than a bogey on No. 17, and he finished with a 68.
Koepka also was 3 under after eight holes. He made his lone bogey at No. 13 before recording a birdie on the par-5 18th hole.
The PGA Tour is using a new scoring format for the Tour Championship, so players began at varying levels under par based on their standing prior to the event.
Xander Schauffele (69) made a late push in an up-and-down round. His birdie on No. 17 was followed by an eagle at No. 18, so he stands at 11 under, alone in fourth place.
Schauffele, who had the best round Thursday with 64, tumbled a bit Friday with three bogeys during a four-hole stretch (Nos. 8-11).
Schauffele began the tournament six strokes behind Thomas, the points leader entering the week.
England’s Paul Casey (67) is within striking distance at 9 under, good for fifth place.
More than half of the 30-golfer field posted an over-par score Friday.
Play was suspended for more than an hour late in the afternoon because of weather concerns. The leaders had just passed the midway mark of the round.
Australia’s Adam Scott made putts of 66 and 72 feet on the back nine, helping him to a 68 and moving to 5 under for the tournament. He is in 10th place.
Chez Reavie posted the best score of the day, a 64. Coupled with his 71 on Thursday, his tournament total is 6 under, leaving him tied for seventh place with Patrick Reed. Patrick Cantlay is in sixth at 7 under.
Reavie played the front nine in 5 under, capped by a hole-in-one on the ninth hole. The ace came on a 230-yard hole, with the ball bouncing on the front of the green and rolling to the cup. It was his fifth hole-in-one in PGA Tour play.