Thomas Bjorn and Simon Dyson are in a tie for second at the Barclays Singapore Open before darkness brought third round play to an early end.
They trail Thailand's Chapchai Nirat by two shots, after the 25 year old from Bangkok who began the third round on four under made birdies on the third and fourth and a ten foot birdie at the tenth.
Chapchai took a two shot lead with an eagle on the 11th when he chipped in with a pitching wedge from 118 yards.
Chapchai went on to par the 12th when play was halted, leaving him on five under for the day and nine under overall.
Dyson, Lam and Bjorn were tied for second on seven under at the time of the stoppage.
Dyson was six under at the start of play and picked up a shot with a birdie on the fourth while parring all of the other ten holes he played.
"My game feels good. I'm playing all right," said the Englishman, who is feeling the effects of fatigue after playing at the Hassan II Golf Trophy in Morocco last week.
"I normally like to attack stuff but I'm holding back a bit as I'm tired.
"I'm right in it though. Bogey free yesterday and bogey free today which is a good thing.
"I'm playing a bit conservative but hopefully I'll get a good night's sleep and come out blazing tomorrow."
Bjorn started on three under and dropped a shot on the fourth before making birdies at five of his next nine holes to move to seven under after 12.
"I got off to a rocky start but after four I played some pretty good stuff," said the Dane.
"I am just trying to get myself in there with a chance to win. I have not played well for a while and it is nice to get that feeling that I have a chance again."
World Number Five Padraig Harrington held the clubhouse lead after shooting a 66 in the third round to improve to five under.
He was joined on that score by Phil Mickelson (four under through 14), Ernie Els (one over through 11), Rory McIlroy (one under through 11) and Jeev Milkha Singh (four under through 14).
Although there were no stoppages today, long weather delays on the first two days meant that third round play only began in the afternoon with only 27 of the 72 players who made the cut able to complete their rounds.
