In today's quarter-finals at the Pan Am Centre in Markham Goh surged past South Korea's Lee So Yui 21-11, 21-5, while Wang, who is the top seed at the event, beat her compatriot Zhou Meng 21-18, 21-10.

In Buenos Aires last month it was Malaysia's Goh who got the win in the final, but Wang then got her revenge during the World Junior Mixed Team Championships in Markham last week.

It means the honours are even as they prepare to face each other again.

The other semi-final will feature Denmark's Line Christophersen, who beat another Malaysian in Eoon Qi Xuan today 23-21, 23-21. 

She will play China's Wei Yaxin who took three games to beat South Korea's Park Ga Eun 21-23, 21-15, 21-18.

In the men's singles the new Youth Olympic champion Li Shifeng from China made it into the semi-finals with a three game win over Ireland's Nhat Nguyen.

The third seed lost the first but was able to wrestle back the momentum and eventually take the match 19-21, 21-10, 21-14.

He will now play Japan's Kodai Naraoka, who beat Malaysia's Ng Tze Yong 21-19, 21-8.

In the other half of the draw the top seed Kunlavut Vitisarn from Thailand will play India's Lakshya Sen for a spot in the final.

Vitisam beat Indonesia's Alberto Alvin Yulianto 21-14, 21-17 today to advance, while Sen saw off a late fightback from Malaysia's Aidil Sholeh Ali Sadkin to win 21-8, 21-18.

The semi-finals will take place tomorrow before the finals on Sunday (November 18).