Former Open champion Ernie Els fired a majestic 64 to take a two-shot halfway lead at 11-under in the WGC Championship at Mount Juliet, Ireland.
ROUND TWO LEADERBOARD
-11 E Els (SA)
-9 T Hamilton (USA), MA Jimenez (Sp)
-8 J Leonard (USA)
-7 L Westwood (GB), R Goosen (SA), T Bjorn (Den), S Flesch (USA)
The South African birdied the first four holes and added five others to head this year's Open champion Todd Hamilton, and Miguel Angel Jimenez.
Veteran Spaniard Jimenez had a superb finish, with a birdie at the 16th and a huge putt for an eagle on the next.
Tiger Woods made three early birdies but closed with a 70 and is six-under.
The former world number one said: "I putted so bad on the back nine that it cost me four shots, but there's still a long way to go."
Els said afterwards it had taken a while to get over yet another Majors disappointment in the USPGA Championship at Whistling Strait in August.
Having also come close in the Masters and Open Championship, he admitted: "It took me a couple of weeks to get my thought process settled down and worked out.
"You play to succeed and play to win and, when it didn't
happen, I was quite disappointed, but I'm fine now."
Hamilton, who was tied for 51st in his last event in the US and has yet to finish in the top-10 since his famous Royal Troon win, played one of the shots of the week at the 15th.
He was plugged in the face of a greenside trap but cleared the lip by a fraction of an inch and the ball rolled to within three feet, ensuring a comfortable par.
At the 18th he gave another example of his wide range of shots around the green with a delicate chip that finished inches past the cup.
Jimenez also came within a fraction of a miracle at the final hole as he completed the day's action in the final group.
Plugged in the rough he lofted a recovery that bounced a yard fom the flag and finished two feet beyond.