The Black Sticks women's team have secured top spot in pool B by beating hosts Belgium 2-0 at the World League Semi-Final at Antwerp.
New Zealand has won all four of their games, scoring 21 goals and conceding none.
Anita Punt opened the scoring for New Zealand in the 12th minute, smashing home her own rebound from a penalty corner flick.
Gemma Flynn scored her seventh goal of the tournament three minutes into the second half.
"It's good to come through the pool games unbeaten and with a clean sheet, I'm really proud of our defence and the way we are playing for each other," said Flynn.
"We've got a few work ons from today but it's good to take away the win and now our focus really turns to Japan.
"Japan can play a similar way to how Belgium did today and they defend hard so we need to counteract that. We know what we need to do to get it done," she said.
The Black Sticks face Japan in their sudden-death quarter final on Wednesday.