Singapore women in a good position
Ng fired 223, 235, 232, 225 and 215 to lead the field at the halfway mark, 4 pins ahead of Shalin in second and Singapore Open champion, Sin Li Jane third. Despite a decent 207 in the sixth game, Shalin took over the running with a stronger 234.
Shalin and Li Jane then battled for the between themselves as Ng kept close company to the leading duo. Shalin ended the first stage in pole position with 2180 followed by Li Jane in second with 2168.
The fourth Singaporean in the finals made the cut for the next stage in 12th position with a total of 2001.
China's Pan Yu Hong clinched second position with 2121, just 1 pin ahead of the surprised Jeri Ramadona of Indonesia in third with 2121. World Championship Doubles silver medalist, Muhd Nur Aiman finished fourth with 2098.
Another Malaysian, Chong Jun Foo did well to take up fifth spot with 2094 followed by two Chinese, Zhang Peng fifth and Mi Zhang Li sixth with 2093 and 2088. Malaysia's Syafiq Ridhwan sqeezed into the next stage in 18th position with an average of 201.30.
The top 6 men and top 6 women at the end of the second stage will advance into the stepladder finals on Saturday, September 18.
Detailed scores: Women's Open Stage 1 Finals | Men's Open Stage 1 Finals.