Australian teams completed a clean sweep of their Super League counterparts as St George Illawarra Dragons and South Sydney Rabbitohs recorded respective wins over Hull FC and Wigan Warriors at ANZ Stadium.
Saturday's international double-header in Sydney came 24 hours on from Melbourne Storm's trouncing of Leeds Rhinos in the World Club Challenge.
Wigan had won last year's World Club Challenge on home soil against Cronulla Sharks, but the Warriors and Hull - who contested the first Super League fixture to be played in Australia last weekend - were both second-best against NRL opposition this time out.
Hull went down 24-18 to the Dragons, Matt Dufty impressing at full-back for St George as Nene MacDonald (2), Tim Lafai, Jason Nightingale and Kurt Mann crossed for tries. Mann sliced through the Hull defence for the match-winning score three minutes from time, as Albert Kelly's brace for the visitors proved in vain.
South Sydney then beat Wigan 18-8, despite two tries from Tom Davies.
There were a number of other trial matches involving NRL sides on Saturday and Kieran Foran impressed on his Canterbury debut as the Bulldogs edged out Canberra Raiders 16-12.
The much-anticipated returns of North Queensland Cowboys stars Johnathan Thurston and Matt Scott, against Wests Tigers, were briefly delayed as a thunderstorm led to Barlow Park being plunged into darkness.