As you can see from this map, we are talking about a local derby. My husband, who works in Piteå, could report that over there they talk about it as a game of Piteå North vs Piteå South. I am not surprised, the folks in Piteå are not known for being humble. It is universally known that all roads lead to Piteå, and that wherever you go in the world, you will find a pitebo. Even on the moon, as Aldrin is a Piteå-name. (Wikipedia says he has roots in Värmland, and this is not surprising, considering people from Piteå are to be found everywhere.)
Anyway, three games have been played and Skellefteå has won every one of them. Much frustrated moaning and disappointed groaning lately. Tomorrow, flags may be at half-mast.
Postscript 2013-04-19: Indeed, there was nothing but whimpers and a moanful silence from the neighbours during the game. Luleå lost, properly and fairly. Congratulations to Skellefteå!