Fannemel won the first of two competitions held on the Japanese hill with two jumps of 129 metres and a total of 257.6 points. 

Behind the Norwegian in second place was local hero Taku Takeuchi and Andreas Wellinger of Germany.

It was the first win in the FIS Grand Prix for Fannemel, after a second placed finish in Wisla, Poland, earlier this summer.

"I could really improve my performance from the training in the competition," said Fannemel.

"I didn't take part in every competition this summer in order save my strength, but the Grand Prix is still very important for me."

Takeuchi was victorious in the second competition after scoring 242.2 points with his jumps of 130m and 127m.

After finishing first twice in Almaty, Kazakhstan, in both 2012 and 2014, this was the third win at a Grand Prix for the Japanese jumper.

"I'm in a good shape and before my jumps I was hoping that I'd also have good wind conditions," he said.

"I had two stable jumps. 

"I now plan to participate in the remaining Grand Prix events in Russia, Austria and Germany."

Wind conditions were difficult for the second event with rounds interrupted on numerous occasions.

Norwegian Joachim Hauer achieved a career Grand Prix best by finishing second behind Takeuchi, with Fannemel having to settle for third.

Maciej Kot of Poland remains in the lead of the overall ranking with 380 points, ahead of Wellinger on 285 points and Fannemel who has 240.

The FIS Grand Prix continues on September 10 and 11 in Chaikovsky, Russia.