After thumping five-time winner Geet Sethi on Friday, IBSF World Billiards champion Advani pipped David Causier of England 896-782 with brilliant breaks of 245, 68, 127, 60, 196 to set up a clash with Sitwala in the semifinals.
Sitwala also did not break any sweat against Peter Gilchrist of Singapore, defeating him 872-399 with brilliant breaks of 185, 90, 97, 100.
Compatriot Rupesh also scored a thrilling 545-394 win over Martin Goodwill of England in the quarterfinals with breaks of 64, 99, 103, 90, 45. The Gujrathi cueist will now take on defending champion Mike Russel in the last four stage.
Russell, meanwhile, brushed aside B Bhaskar of India 1271-419 in another quarterfinal match.
Against the experienced Russel, the Bangalorean stood little chance and he never could assume control of the match at any stage.
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