World number one Tiger Woods struck a brilliant 10-under-par 62 in the second round of the World Challenge to eke a two-stroke lead at the halfway stage, according to reports.
According to the BBC, Zach Johnson trailed Woods on nine under after a four-under-par 68, while fellow American Matt Kuchar was third in California on eight under.
Woods hit 10 birdies in a blemish-free round to finish 11 under overall, the report said.
Woods, who had shot a one-under-par round on the opening day, collected five birdies over the first nine holes to reach the turn in 31, the report added.
His superb form continued on the back nine and he eventually overtook overnight leader Johnson, who had mirrored Wood's efforts over his first six holes but could not keep pace with his compatriot, the report further said.