Goh Wei Ming is clearly suffering the effects of a three month lay-off
Uzbekistan's Vakhidov and Barbosa are now on 5/6 with Bitoon on 4.5/6.
India's International Master Arghyadip Das kept his hopes alive with a determined effort over Singapore Grandmaster Wong Meng Kong and is on 4 points.
Still unbeaten is Grandmaster Tahir Vakhidov with 3.5 points after a draw with Vietnam Grandmaster Nguyen Anh Dung who now has 1.5 points.
His colleague International Master Nguyen Van Huy is on 2/5 points after being held by Malaysia's International Master Mas Hafizulhelmi.