Rukajärvi’s second run put her right into the medal contest in Sochi. Her second run was almost flawless, lifting her after a first run that garnered just 73.75 points.
She got 92.50 points to take the pole position, which she retained until American Jamie Anderson displaced her by scoring 2.75 points more.
Rukajärvi, 23, has previously won the slopestyle world championship. the TTR tour and the X Games. Briton Jenny Jones took the bronze medal.
Yle is covering the Sochi games across all platforms, including Yle Areena which will stream the day's events.