SECOND ROUND LEADERBOARD GB&Ire unless stated -9 M Mamat (Sin) -8 P Marksaeng (Tha), M Both (Aus) -6 W Ormsby (Aus) -5 A Bateman (Can), U Park (Aus), N Dougherty (Eng), R Fisher (Eng), P Hanson (Swe)

Dougherty, the defending champion, birdied three holes in a row to turn in 33, and added a fifth birdie at 14 but an errant tee shot cost him on 17.

Thai Prayad Marksaeng birdied six of the opening eight holes before faring worse at the 17th with a triple bogey.

It left him one behind Mamat, who was three-under for the back nine in a 70.

Dougherty's frustration was evident before the events on the 17th, when a seven-foot birdie putt slid past the hole at 15, prompting him to hurl his putter to the ground.

He failed to find the green at the 17th, a par-three with water lurking, and an indifferent chip left a difficult putt to drop one shot, but that also stayed up.

"I didn't play great, but even so, I was looking to finish eight or nine under," he fumed afterwards. "I had nothing going for me all day, I couldn't get putts to drop.

"I hit a bad shot on 17 and had a terrible lie there and made double, but that's the nature of the game. I'm just desperately disappointed."

Englishman Ross Fisher birdied four holes in succession from the second to join the group at five under, while Simon Dyson, winner of his maiden title in Indonesia last week, is one further back after a 67 containing no dropped shots.

Marksaeng, 40, bogeyed the 16th and then found the water which led to his triple bogey, but a closing birdie left him in share of second with Australian Marcus Both at eight under.

Both's second successive 68 was built around an eagle at the 11th, but compatriot Marcus Fraser, the joint overnight leader, slipped to a 76 after a double bogey at the last.

Two of the bigger names in a low-key field will not be around for the weekend.

Niclas Fasth, the top-ranked player in the event, needed some drastic improvement after his opening 75, and though he picked up two birdies on his outward nine, three dropped shots coming home resulted in a 72.

Thailand's Thongchai Jaidee, who resumed on four over, birdied three of his first four holes but his 70 was not enough to avoid the cut.