Australia, who scrambled a late equaliser against the Argentinians on Saturday, had the better of the early play yesterday and were rewarded in the fourth minute when captain Madonna Blyth netted.
Yang Peng pulled a goal back for China, 1-1, from a penalty corner (PC) with four minutes left in the second spell.
That stung the Roos into action with Jodie Kenny finding the net from a PC for a 2-1 lead into the breather.
Xiayun Xi levelled terms 2-2 only five minutes after play resumed but neither side was able to find a winner.
-India drew first blood against the US but eventually succumbed 4- 2 in the battle of cup newcomers.
Striker Anuradha Thokchom scored but the US equalised, 1-1, 13 minutes later when Jill Witmer found the back of the net.
Kathleen Sharkey broke the deadlock and struck again a minute later as the US led 3-1, but India pulled one back from Thokchom. Julia Reinprecht made it 4-2 in the final spell.