Hume followed his 65 on Thursday with a 69 on Friday
R2 LEADERBOARD:GB & Ire unless stated-11 J Randhawa (Ind) -10 B Hume -9 I Steel (Mas), G Lockerbie -8 P Lawrie, WC Liang (Chi)-7 M Fraser (Aus)
Scotland's Barry Hume is just one shot off the lead at the Singapore Masters after shooting a second-round 69 at the Laguna Country Club on Friday.
But Ryder Cup stars David Howell, Darren Clarke and Lee Westwood all failed to make the cut.
Hume is at 10 under, with India's Jyoti Randhawa clear at the top of the leaderboard after battling to a round of 68 in difficult conditions.
Howell said: "I just haven't got going - I've lost the plot at the moment."
Clarke, who has won 11 European titles but none since 2003, slumped to a three-over-par 147 to miss the cut by five shots.
He said: "If I knew what I was doing wrong, I would have put it right."
The 31-year-old Howell, who won three times last season, has had a poor start to his year.
He said: "I'm playing terribly at the moment and it is very frustrating.
"No excuses, I'm just playing badly. I'm just not hitting the ball straight. The short game is great but the long game isn't.
"I always look forward to the Masters but I want to be going in with better form than this."
Glaswegian Hume, 25, shot a second successive 65 but would have done even better had he avoided a double bogey at the par-three 17th.
"It is always disappointing to double bogey the 17th but my golf overall has been good so I am not too worried about that," said the Scot, who has played on the Asian Tour for the past two years.
"The goal was to make the cut. There are a lot of players here who are going to miss out so I am happy with that but I have probably done better so far than I thought I would."