DUBLIN, OHIO ? Two years of rain-delayed runaways by Tiger Woods are over, not to mention his quest for a fourth straight victory in the Memorial Tournament.

The stage now shifts to Bob Tway, the 43-year-old Oklahoman and former PGA champion who walked the line between aggressive shots and disastrous results and positioned himself for his first victory in seven years.

“It would be a big boost for my confidence,” Tway said.

Playing bogey-free while other contenders succumbed to mistakes on the back nine Saturday at Muirfield Village Golf Club, Tway had a 4-under 68 to emerge from the pack and take a one-stroke lead over Stewart Cink into the final round.

Five players had a share of the lead at one point until Tway birdied No. 17 from 15 feet to finish at 12-under 204, the first time he has had at least a share of the 54-hole lead since the Disney Classic three years ago.

Cink could have joined him, but missed a 3-foot par putt on the final hole.

Justin Leonard, the 36-hole leader, was around the top of the board all afternoon until two bogeys on the back nine dropped him back to 206 and an even-par 72.

Vijay Singh also was tied at one point and only two strokes back until he drove into a creek on the final hole and took double bogey. He shot a 72 and was four strokes behind.

“On this golf course, it’s a fine line between good and bad,” Tway said. “I didn’t make a bogey, so that’s good. If I do that tomorrow, I’ll feel good about it.”

Woods had to settle for an even-par 72. He finished at 216, a dozen strokes out of the lead in a tie for 56th.