Indonesian national bowler and a member of the organisizing committee, Tannya Roumimper got off the block brilliantly with a splendid 256 to lead compatriot, Hardy Rahmadian by 10 pins followed by two more Indonesians, Diwan Rezaldy and Sharon Limansantoso in third and fourth.
Limansantoso added 224 to her second game to leapfrog into the lead as 2006 Doha Asian Games Doubles gold medallist, Hassan Alshaikh of Saudi Arabia trailed in second, just 2 pins adrift. Chong fired a stunning 265 to take up third with Roumimper slipping down to fourth.
The 25-year-old Chong added another superb game of 230 to remain in the lead. Hassan stayed close in second, 4 pins away while Roumimper bounced back to take up third and Limansantoso following behind.
Limansantoso rolled a stunning 263 to take over the running after the fourth game. The Saudi continued to trail in second while Chong slipped down to third despite posting a good game of 234.