American Jim Furyk produced a stunning day of golf to claim the clubhouse lead at the weather-hit BMW Championship.
Furyk displayed more than an occasional flash of brilliance to shoot a course-record eight-under-par 62 in the second round at the BMW Championship on Saturday morning before he went out and followed it up with a third-round 66, earning a share of the lead with Colombian Camilo Villegas at 12-under-par.
"I tried to pace myself all day, knowing we were going to be out there for 36 holes," Furyk said.
Villegas, who was among 23 players unable to complete the third round, negotiated 13 holes before play was halted for the day in fading light.
Brian Gay sits two strokes back with three holes to play, with Anthony Kim a shot further back with one hole to negotiate when play resumes on Sunday morning.
Sergio Garcia headed a disappointing European contingent seven strokes off the pace after a 69.
The highlight of his day was a hole-in-one at the third hole during the second round when the Spaniard used a five-iron from 205 yards to record the first ace of his career.
Irishman Padraig Harrington was near the tail of the field, 14 strokes behind after a 72 that included only one birdie.
Officials had hoped to complete two rounds on Saturday to make up for Thursday's washout, but a 90-minute morning fog delay halted proceedings.