Thanyakon Khrongpha of Thailand fired an eight-under-par 63 to seize the clubhouse lead as Padraig Harrington's charge was stopped by bad weather at the Indonesia Open golf tournament on Friday.
The Thai produced a near perfect card in the calm morning conditions, which included nine birdies, before stumbling to a lone bogey on his last hole to settle for a 12-under-par 130 total at the Damai Indah Golf-PIK Course near Jakarta.
"Everything in my game was good especially my ball striking," said Thanyakon, 24, in a statement released by the organisers.
Three-time Major winner Harrington negotiated his way through 12 holes before play was called off for the day due to bad weather.
The Irishman and 66 others will resume play in the $US750,000 ($A811,000) Asian Tour event early Saturday.
Among the players who finished their rounds were Asian Tour rookie Nathan Holman of Australia, who was two shots back after matching Thanyakon's 63, while compatriot Scott Hend and Jarin Todd of the United States shot identical 64s for a 133 total.
Tasmanian Kalem Richardson was the first-round leader after an eight-under-par 63 on Thursday.
