Onitsuka had been victorious in the slopestyle FIS Snowboard World Cup season opener at Secret Garden last month and secured her second consecutive win in Kreishberg. 

The 20-year old scored 85.33 points to top the leaderboard, beating Austria's Anna Gasser, who had led qualifying event yesterday but who could only achieve a score of 85.10 to finish second today. 

Norway's Silje Norendal came third with 67.81 points. 

Onitsuka's win consolidates her lead in the overall World Cup rankings combing results from this season's big air, half pipe and slopestyle events. 

She now has 4,400 points, ahead of her compatriot Reira Iwabuchi on 3,650 points and Gasser on 2,400. 

In the men's competition, Mons Roisland of Norway triumphed with a score of 88.75 points.

Chris Corning of the United States came in second with 84.75 points, while Japan's Hiroaki Kunitake finished third with 83.86.

Takeru Otsuka of Japan, the winner in Secret Garden and who topped yesterday's qualifying event, came fourth with a score of 83.31 points.

He still leads the overall standings with 4,100 points, despite his disappointing performance today. 

Corning is challenging in second with 2,890 points and Japan's Ruki Tobita is in third with 1,655.