Katrina Gorry got the first-half breakthrough for Tony Gustavsson's side in Newcastle before goals to Alex Chidiac and Caitlin Foord assured them of a seventh straight victory.

Gustavsson wanted to use this friendly tournament as a dress rehearsal for the intensity of successive World Cup games later this year and, on results alone, his side passed with flying colours.

Three wins and 10 goals across this tournament suggest as much, but Australia were sluggish to start on Wednesday in front of 9,093 fans at McDonald Jones Stadium. 

"We have had a real tournament feeling so in that sense it's been phenomenal for us," Gustavsson said.

"I want to be emotionally distanced from it ... but we've learned to win.

"Tournament football is about grinding through and believing in what you're doing .

"The players stayed loyal to the plan that we had and grew into the game." 

Sunday's 3-2 win over Spain clearly took its toll on a squad that had been afforded little rotation.

The Swede stuck solid with the 4-4-2 formation that has led to the upturn in form for his side, whose next assignment is an away trip to European champions England in April.

Gustavsson had only made two changes to his starting XI with Courtney Nevin at righback for Charlotte Grant and the injured Hayley Raso vacating her right wing spot for Larissa Crummer.

Australia struggled to dictate the tempo and could count themselves fortunate not to go a goal down due to some enterprising play from Jamaica's Kayla McKenna.

Gorry's opener in the 27th minute proved to settle the nerves, the midfielder receiving the ball from Foord as she dropped into a pocket and unleashed from 25 metres out past the powerless Becky Spencer.

There were more promising signs for the Australians with Kyra Cooney-Cross and Foord threatening to extend the lead just before half-time.

But the real cattle-prod came after the break with the introduction of Chidiac at the expense of Crummer.

The Melbourne Victory midfielder has only seen gametime at this tournament from the bench but made a compelling case to start when she came on.

Chidiac got her reward soon after her arrival, weaving her way around the six-yard box before making it 2-0 with a well-taken 56th-minute finish.

"She deserves to start on her performance, but it might not be best for the team," Gustavsson cautioned.

"We felt that maybe that 'Chids' could come in between lines and unlock things, which she did brilliantly."  

The Matildas were on a roll and their third came when Foord and Sam Kerr showed some neat link-up play.

A one-two with Kerr left the Jamaican defence flatfooted and Foord was able to hammer the ball in from the edge of the box to seal the first piece of silverware of Gustavsson's campaign.