Would you be including Perth? I assume so. In that case, they have the only Group races in Australia this Saturday:

STRICKLAND STAKES 2000 M (GROUP 3) 3YO+
HYPERION STAKES 1400 M (GROUP 3) 3YO+
W.A. SIRES' PRODUCE STAKES 1400 M (GROUP 3) 2YO
W.A.T.C. DERBY 2400 M (GROUP I) 3YO