The Quebec City event featured both Snowboard and Skiing athletes competing in the Slopestyle and Big Air Olympic disciplines.
Rich made a strong start to the event with an eighth place qualifying performance in Big Air, narrowly missing the top six women's final.
Competing in the Slopestyle, Rich achieved her best result of the season, finishing ninth in qualifying, again missing the top eight final by the narrowest of margins.
Russ Henshaw advanced through to the top-16 men's Slopestyle Skiing finals after qualifying fourth in his heat.
In the final, Henshaw was unable to match his qualifying performance, with two low scores in the final giving him a placing of 15th.
Also in action for Australia in Quebec were NSWIS athletes Matt Cox and Ryley Lucas. Cox finished in 48th and 44th place in the Snowboard events, with Lucas 62nd in the Slopestyle Skiing.
IMAGE: Russ Henshaw (right) with Felix Usterud of Norway © Russ Henshaw Instagram