Australia have opened their women's Rugby League World Cup defence with a 58-4 rout of the Cook Islands in Sydney.
The 11 tries-to-one demolition on Thursday at Southern Cross Group Stadium sent a warning shot to the rest of the tournament, as rivals New Zealand were also impressive first-up winners against Canada.
And while the Jillaroos took their foot off the pedal in the second half as rain set in, the result was still emphatic.
After going into halftime with a 36-0 lead, at one point they looked like they were going to trouble their record score of 72-0, however the Cook Islands showed guts in the finals 20 minutes.
"I'm happy with the effort. The try the Cooks scored at the end there, they really deserved to score that try," coach Brad Donald said.
"They just kept showing up all day and it was their great spirit. You could see the disappointment in our girls when they crossed the line. They were disappointed at 52-0 to let in a try and just shows the intent of the squad."
The writing was on the wall from the get-go when halfback Caitlin Moran scythed through in the sixth minute for the first of two tries.
The game was summed up when five-eighth Ali Brigginshaw ran 60 metres to score when she had no right to do so.
At one point, the Jillaroos found themselves working it out of their own end but went 80 metres to touch down via debutant back-rower Talesha Quinn.
All four of the Jillaroos' debutantes - Nakia Davis-Welsh, Meg Ward, Brittany Breayley and Lavina O'Mealey - scored tries.
The Cook Islands scored a consolation try in the 72nd minute through Chantelle Inangaro Schofield.
Cook Islands coach Ian Bourke said he was stoked with his side's effort and didn't know much about any of his players before he met them earlier in the week in camp.
"They were pretty brave. I'm proud, definitely," Bourke said.
"They came into camp on Sunday. They'd never had a training run together. Let's be realistic about this. That was pretty impressive."
Earlier, New Zealand looked shaky in the first half before routing Canada 50-4 to open their tournament.
Back-rower Teuila Fotu-Moala was a standout, pulling off a string of bone-rattling tackles and crossing for a second-half double.
England were also first-up winners with a 36-8 victory over Papua New Guinea in an at-times spiteful affair.
The Lionesses went into halftime up just 18-8 but ran away with it in the second half.
