Australian Scott Barr is tied for third at the Chiangmai Golf Classic Thailand after striking four-under-par 68 in the opening round.
Thailand's Sattaya Supupramai and George Gandranata of Indonesia claimed the lead, shooting 66s to overshadow major winner American Jason Dufner, who finished with 69 and a share of 11th place in the $US750,000 ($A811,470) Asian Tour event.
Sattaya said he was "playing with a lot of confidence" after winning on the Asian Development Tour last week.
"We have a strong field here this week but I'm only focused on every shot and not the players who are here," the 30-year-old said.
Singapore's Mardan Mamat took solo second at the Alpine Golf Resort, while Barr was one of seven to claim a third-place position.
Title holder Scott Hend of Australia birdied the last hole to finish on 72.
The 2013 PGA Championship winner Dufner ended the round within striking distance of the leading duo.
"My front nine was a little slow to start but I played better on the back. It was pretty good all day. I'm glad to finish under-par," he said.
Leading scores after the first round at the par-72 Alpine Golf Resort course:
66 - Sattaya Supupramai (THA), George Gandranata (INA)
67 - Mardan Mamat (SIN)
68 - Rashid Khan (IND), Lu Wei-chih (TPE), Jyoti Randhawa (IND), Nicholas Fung (MAS), Scott Barr (AUS), Panuphol Pittayarat (THA), Bryce Easton (RSA)
