Tiger Woods, hunting his eighth victory of the year, overcame two early bogeys and a few swing problems to stretch his lead to six shots in the Target World Challenge third round in Thousand Oaks, California, on Saturday.
Four ahead of the pack overnight, the world No 1 hit a five-under-par 67 for an 18-under 198. Although not matching his form of Friday when he set a course-record 62, he hit seven birdies in pursuit of his fourth title in the 16-man tournament he hosts.
His playing partner Jim Furyk, three off the pace for much of the day, slipped back with a double-bogey at the par-three 15th on his way to a 69 and second place. The Masters champion Zach Johnson also carded a 69 to lie third.
On the women's side, Sweden's Annika Sorenstam ended a tough season by retaining the Dubai Ladies' Masters.
After missing a chunk of the year with a neck injury, the 37-year-old was close to going a full season without a victory for the first time since her rookie 1994 season. But a strong finish to a round of 70 coupled to a dramatic final hole shocker from her playing partner Denmark's Iben Tinning, allowed Sorenstam to claim the title by two shots, 10 under par.
England's Laura Davies, one behind overnight, made an early move with a birdie at the long third, but dropped shots at the 12th and 15th. But a two-putt birdie at the last helped her to claim a share of second with Tinning.