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Chuck Burton, Associated Press
Ernie Els, of South Africa, watches his second shot on the 18th hole during the second round of the Wyndham Championship golf tournament in Greensboro, N.C., Friday, Aug. 19, 2011.

GREENSBORO, N.C. — Tommy Gainey shot a 65 on Friday to move to 12-under 128 and take a three-stroke lead after two rounds of the Wyndham Championship.

Gainey, who shared the first-round lead with Jeff Quinney, had six birdies and has the second-best 36-hole score in tournament history.

Ernie Els (66), Webb Simpson (65), Stuart Appleby (67) and Daniel Summerhays (65) were at 131. Jim Furyk (67), Alexandre Rocha (66), Paul Casey (67) and Retief Goosen (65) were four strokes back at 132.

Gainey's two-round score is second only to Carl Pettersson's 125 in 2008 at the Donald Ross-designed, par-70 Sedgefield Country Club course.