Wallaroos looking to hand Tregonning a 'fairytale finish' with WXV1 win

Assistant coach Scott Fava is confident the Wallaroos can continue their winning momentum when they meet Wales in WXV1.

"I feel that this performance on the weekend is really about back-to-back from what we've done against France," Fava told AAP ahead of Friday's match in Auckland.

The Wallaroos are coming off an historic win against world No. 3 France and are positive they can beat winless Wales too.

It's a special last Test for the Wallaroos who will farewell head coach Jay Tregonning after two years at the helm.

Fava shared a heartfelt message to his outgoing coach.

"For me, being able to be with him in this role and give him every opportunity to leave a winner will be superb in that sort of fairytale finish, so we're hoping that happens," said Fava.

Returning to the bench after recovering from a knee injury, Lori Cramer said the team was full of confidence after the upset win over France.

"The atmosphere is really, really good ... we don't want it to be just a one off thing, we really want to prove to everyone that women's rugby is really going places," she said.

The Wallaroos are looking to score big against Wales, who suffered a demoralising loss against world No. 2 New Zealand, going down 70-7.

"If we play the kind of rugby that we want to tomorrow, we're gonna score a lot of points ... it's just up to us," said Cramer.

The Wallaroos have a 100 per cent winning record against Wales, leaving Fava full of confidence.

"We're really pumped to have Wales as our last opponent because we know that's the sort of opportunities we can provide ourselves and at the same time deny Wales of those opportunities," Fava said.

The Wallaroos can move from fourth to third in the WXV1 standings with a win and if Canada lose to France on Saturday night.