But the fancied Negrense, eyeing a third straight victory after sweeping the Bacolod legs in Binitin and Marapara,
bogeyed the par-three 16th and fell to joint 10th at 137 with JR Salahog (68), just three strokes off the Thai.
Westwood settled with three further pars but nosedived at the seventh with a triple
bogey seven.
Chabon, spearhead of Team The Country Club, hit four birdies against two
bogeys at Mt.
David Dixon putted a six-under par 66 which included seven birdies and just one
bogey.
However, the Ulsterman had a hat-trick of
bogeys from the 11th, ran up a six on the long 17th and turned in a three-over 39.
Day three started well with birdies at the first, second and sixth before the former England international was halted in his stride by a double
bogey six at the seventh and a
bogey on the next.
He started with a par but back-to-back
bogeys dropped him into a share of the lead with John Daly, who had yet to tee off.
He had just one more birdie the rest of the way with five
bogeys for a disappointing end to a round that started with such promise.
The Englishman who blew up at Bay Hill last Sunday with the tournament in his grasp tumbled off the leaderboard inside a few awful minutes with a quadruple
bogey eight.
But the fancied Negrense, eyeing a third straight victory after sweeping the Bacolod legs in Binitin and Marapara,
bogeyed the par-3 16th and fell to joint 10th at 137 with JR Salahog (68), just three strokes off the Thai.
TRIAS, Cavite - Korean amateur Hwang Min-jeong sizzled at the back and shot a four-under 68 then pounced on Chihiro Ikeda and Princess Superal's last-hole
bogeys to wrest a one-stroke lead at the start of the ICTSI Eagle Ridge Ladies Invitational here yesterday.
The 2011 Open champion had a double
bogey at the par-three fourth, a
bogey at the sixth and a birdie at the eighth.