Charles Schwab Challenge | Adam Schenk and Harry Hall lead by a stroke

(Fort Worth) Author of a 67, Adam Schenk joined Harry Hall at the head of the Charles Schwab Challenge by one stroke on Saturday.

Schenk closed with a 16-foot putt on the 18^e for a total of 200 minus 10.

Schenk, without a triumph in his previous 170 PGA Tour appearances, finished second at the Valspar Championship in March.

Hall, the solo leader after each of the first two rounds, overcame two straight double bogeys on the front nine to lose the top spot. His last putt of his round of 72 was a par over 10 feet on 18^e hole.

Harris English (70) completed the day one stroke behind the leaders.

World No. 1 Scottie Scheffler, second last year at this tournament, bogeyed on three of his last five holes.

He handed over a 72 after two scores of 67, which puts him in 10^e rank.

Defending champion Sam Burns delivered a second straight 70 card, finding himself tied at 16^e place.

Justin Suh (66) and Emiliano Grillo (72) are third, at 204.

Suh had four birdies on the front nine, of five overall.

Grillo started with an eagle and a birdie, working his way to the top halfway through. The game changed on the back nine where he committed a double bogey and two bogeys, that in six holes.