Triple Olympians Cam Bolton and Belle teamed up, while Jindabyne's Josie Baff and Adam Lambert formed Australia's second team in the new Olympic event.
In Snowboard cross four male athletes race first and the time advantage the winning male has is transferred to his female teammate, with the other three women leaving the start gate in a staggered format. The top two women to finish secure a place for their team in the next round.
Australia's two teams were drawn to compete in the same quarter-final. Cam and Adam were the two fastest starters in their run, with Cam finishing fastest and Adam just .42 seconds behind in third.
But it wasn't to be Australia's day, with Josie taking a tumble and moments later Belle clipped the board of another rider to lose her balance and suffer a fall.
Josie made her way down the course shortly after, but the competition was stopped for Belle to receive medical attention on the course.
Belle complained of a sore neck and was subsequently taken to hospital as a precaution for imaging.
Those scans were all clear and Belle will be heading back to re-join her teammates at the Athletes Village.
Speaking with Channel 7 after being eliminated from the competition, Cam had Belle in his thoughts and reflected on the race.
"First of all I hope she (Belle) is doing well. I heard from the team that she's doing OK and it's just precautionary and they think everything is good," Cam said.
"Hopefully that's the case. [To lose in the quarter-finals] was really disappointing. It's just one of those things.
"Lambo and Josie – I'm so sorry for them too. Josie had such a great start, she was coming in fast behind Lindsey [Jacobellis] (USA) who won gold the other day."
Adam found himself in an intense run.
"The men's races are always super tight," Adam said.
"Cam and [Nick] Baumgartner (USA) are incredible riders. I just wanted to win. I tried really hard."
The conditions were significantly different to what the snowboarders had in their earlier Olympic events, with it snowing at the Zhangjiakou Genting Snow Park making the course slower, which changed the entire dynamic for racing and strategy.
"There is so much snow [falling], the course is tricky," Cam said.
"It's hard to clear the jumps in the middle."
For more snowboarding action you can catch Beijing 2022 bronze medallist Tess Coady and Matt Cox in big air qualifying on Tuesday 15 February.