The AIS athlete executed her run in the final with little risk to move from seventh place after qualifications to fifth place in the final.
AIS team-mate Nathan Johnstone was also reserved with a ninth place finish in the final, against a very high quality men's field.
Coach Ben Alexander, said afterwards: "the heavy snowfall made the pipe a challenge all day. I was pleased that both Holly and Nathan had complete runs in the final; a good start to the winter."
Holly and Nathan will next compete at the Dew Tour series event in Breckenridge, Colarado, on December 16-19.