Rixon Wingrove has struck a three-run double in the first inning to get Australia started and Darryl George had an RBI run single in the seventh to complete a 12-2 victory over China at the World Baseball Classic in Tokyo.

After a shock 8-7 win over world No.4 South Korea first-up, Australia (2-0) scored twice in the third and five times in the fourth, highlighted by Robbie Glendinning's two-run homer. Single runs in the sixth and seventh ended the game on Saturday.

The contest came to an early 'mercy rule' finish when the lead increased to 10 runs.

"It's surreal," said Wingrove of the WBC experience so far.

"We're just going to enjoy the moment at this point. We are happy where we're at and every game that we try and go into, we try and win."

China (0-3) got their two runs in the fourth on a wild pitch and an RBI single by Jinjun Luo, but are now out of contention for the quarter-finals.

Dave Nilsson's side are on track to finish in the top two in Pool B along with world No.1 Japan, who they next face on Sunday at what should be a sold-out Tokyo Dome, and advance to the last eight for the first time ever.

"I'm not really worried about tomorrow. I'm just going to enjoy today's win," Nilsson said.

"Obviously everybody knows who Team Japan is and they know they have a lot of good players. I'll go home and have a good dinner tonight, spend some time with my family and then after that, I'll start thinking about tomorrow."

Australia's two wins at this tournament are the country's most at a single World Baseball Classic.

With Reuters.