Competing in Woerthersee Stadium in Klagenfurt, the 17-year-old Youth Olympic Games medallist performed two double backflip 1080’s spinning in both directions, her first jump scoring 68.60 points, and second jump 54.40.
Her two jump total came to 123 points and a ranking of 11th, just missing out on the eight-woman final by 14.8 points.
Also in action for Australia was Abi Harrigan in 14th, and Joey Ellis who was 42nd in the men’s event.
Thomas reflected on her performance after the event.
“It’s a very different and new setup for me in Austria.
“First time hitting a city big air and first time training and competing at nighttime. The jump was definitely a bit sketchy compared to what I’m used to but I’m happy that I was able to put down both ways double 10s in a contest.
“Despite not skiing my best, I am feeling really confident leading into the next Big Air competition in Kreischberg. I’m hoping to clean up my tricks and really show everyone my potential in the next few competitions.
NSWIS snowboarders also competed in Klagenfurt, with Meila Stalker and Jesse Parkinson in action.
Stalker finished 15th in the women’s event which was won by Mia Brookes of Great Britain, and Parkinson placed 31st in the men’s event won by Taiga Hasegawa of Japan.
The next event will also take place in Austria, moving to Kreischberg for freeski big air on January 10 and snowboard big air January 11.