Ho Chok San of Macau set a cracking pace with 269 in his opening game to lead India's Dhruv Sarda by one pin with Yang a further 12 pins away in third. The 21-year-old Korean National Sports University student then added 244 in the second game to take over the running.
Yang went on a hot streak reeling in 257, 247, 210 and 255 in his next four games to extend his lead to 42 pins. Perfect gamers, Adrian Ang of Malaysia and Michael Mak traded second spots before Liew zoomed in onto the leading pack to claim second spot before the final game.
The leader ended with 258 to win the round with 1932. Liew, who made the finals after winning the one-game tie-breaker before the start of the finals, finished second with 1886, 46 pins adrift. Another perfect gamer, Chow took third spot with 1878.