"I think our final placing of seventh was based on points differential," said McGhie.
Having lost only once, the Kiwis had hoped to have one more game for a playoff for 4th-5th, but it was not to be.
The 34-year-old McGhie, aka Mel-icious Mayhem, played all her matches on Day 1 of the tournament, December 4, as 14 players start every match.
Team New Zealand beat Norway 218-59 and thumped South Africa 315-11.
"Within the first day, we won all of our games. We progressed through the tiers, through the day," she said.
On Day 2, the roll continued with wins over comfortable wins over Wales (250-60) and Netherlands (356-91), which set up the match with the Aussies.
Talking with the locals, while meeting the various players at their merchandise tables, McGhie loved the atmosphere of representing her country at a world event.
"There was a few moments where people would hear you talk and think you were from Australia.
"I get up for every game, regardless [of the occasion].
"When we were doing the haka, I did the haka.
"We were walking around with New Zealand flags, cheering the girls on."
She also experienced the slight culture shock of walking to-and-from the arena and meeting people in a less fortunate situation in life.
"The people from Dallas were awesome.
"Some would ask you for money, which you didn't often have going into the place.
"There was one time I had a 10 cent New Zealand piece and this guy lost his [mind] when I gave it to him. He was walking around showing everyone he'd met someone from New Zealand - he had proof.
"It just makes you appreciate home."
Back home after a vacation following the world cup, McGhie will now look to the domestic season.
The River City Rollers club usually have their endurance skating training in February, before the season starts in March.
McGhie said changes with the New Zealand Roller Derby Association (NZRDA) could mean a new format for events in 2015, so they were just waiting to hear what that could be.
