JAKARTA, Indonesia (AP) Lee Westwood took a five-stroke lead after the third round of the Indonesian Masters on Saturday, shooting a second straight 6-under 66 despite a bogey on the last hole.
Westwood can reclaim the No. 1 ranking from Martin Kaymer with a victory if Luke Donald fails to win The Heritage at Hilton Head Island, S.C. Donald has a one-stroke lead after 36 holes.
Westwood started with three straight birdies Saturday before dropping a shot on the fourth. He added five more birdies before faltering on the par-5 18th - which he had birdied in the last two rounds - for a total 16-under 200.
"This course is one of the best courses in Asia and the greens were great after last night's rain," Westwood said. "I'm here to win a tournament. World rankings seem to take care of themselves."
The heat and humidity did not appear to affect Westwood, who celebrates his 38th birthday on Sunday. But others were bothered, including Westwood's caddy - seen lying on the edge of the green twice Saturday while trying to stay cool.
Thitiphun Chuayprakong of Thailand and Park Hyun-bin of South Korea were tied for second.
"You won't get many opportunities of playing with one of the world's best golfers," said Chuayprakong, looking ahead to the final round. "I'm really looking forward to it."
Play will start earlier than usual for the final round because of the threat of rain.