South Africa's Charl Schwartzel surged into a share of the lead on day two at the Alfred Dunhill Championship on Friday with an 8-under 64 to move to 13 under par.
The former U.S. Masters champion, who ended a long title drought by winning in Thailand last weekend, had six birdies and an eagle to go level with overnight leader Gregory Bourdy at the halfway stage.
Frenchman Bourdy had a seven-under 65 for a two-round total of 131.
The pair lead by four shots from South African Darren Fichardt (68) heading to the weekend at Leopard Creek Country Club.
Another South African, Louis de Jager, and Englishman Steve Webster are another stroke back on 8 under.
Schwartzel's victory in Thailand was his first title since the 2011 Masters.