It was a smooth and fast-paced first period, but it was goalless.
Then Leksand took the lead for the first time this season.
Nils Åman scored from close range - and it was approved after video review.
2-0 came shortly afterwards through Patrik Zackrisson, assist by Åman.
Calle Själin managed to fill in to 3-0, but that Åman's night and in the third period he scored 4-0 on assists from Max Veronneau.
Christian Folin then reduced for Frölunda with a heavy shot, before Jens Olsson also got a hole in Leksand's Finnish new acquisition Kasimir Kaskisuo.
But the people of Gothenburg did not come any closer than that and the Leksand supporters got to celebrate for the first time this season.