Marcus Both

Australia's Marcus Both jumped into a share of the lead before bad light halted proceedings in the opening round at the Worldwide Holdings Selangor Masters on Wednesday.

Both carded one eagle, five birdies and a lone bogey through 12 holes to be six-under before play was suspended shortly after 7pm local time at the Kota Permai Golf and Country Club in Malaysia.

Thailand's Thaworn Wiratchant, who was triumphant at the same venue in 2001, took the clubhouse lead after shooting a round of six-under 66.

America's Jonathan Moore and Thailand's Panuphol Pittayarat completed rounds of 67, while Michael Tran of Vietnam was also five-under, but with three more holes to play.

Kieran Pratt is the next best Aussie in equal sixth at four-under through 15 holes, while Gavin Flint is tied for 18th after completing a round of 70.

Defending champion Joonas Granberg of Finland was off the pace with a 78.