World Cup champion Takanashi pushed close by teammate Ito
Sara Takanashi may have wrapped up the World Cup title on Wednesday but she showed she has no intention of easing off for the remainder of the season with victory in the Pyeongchang a day later.
Hot on the heels of being crowned World Cup champion for a fourth time with a second place finish on Wednesday, the Japanese jumper brought up her 53rd win on the circuit 24 hours later.
The 20-year-old recorded jumps of 99.5 metres and 97.0 metres to finish with 215.1 points overall.
"I am very happy, that I won this 53rd World Cup on the Olympic hill," she said. "The conditions been very difficult. I had to focus very much on what I have to do."
Second place went to her Japanese compatriot Yuki Ito who recorded a new hill record of 111.0 metres on her final jump to move up into the runners up spot from fourth place.
She finished on 213.6 points, just 1.5 behind Takanashi, and said afterwards: "In the final I was quite lucky with the wind. But also in the first round I was able to do a good jump. "I have a good feeling for this hill. But in order to achieve something here next year I will have to do a lot of work."
The wind in Pyeongchang made for tricky jumping conditions but Norway's Maren Lundby was able to hold her nerve to take the final podium position on 201.2 points after jumps of 103.0 and 94.0 metres.
Takanashi's ninth World Cup win of the season moves her onto 1375 points, with Ito second on 1108 and Lundby third on 1049 with one final competition in Oslo remaining.