Kristianstad took their first hit after seven minutes when their Australian new acquisition Elise Kellond-Knight was forced to switch due to injury.
The second blow came at the end of the first half and then it was Viggosdottir who steered a corner to the only goal of the match.
The home team did well, but did not create many chances but it was Rosengård who dominated the match picture.
In addition to Rosengård, Kristianstad has also met Gothenburg and after the tough matches they stand at zero points. Rosengård has two straight 1-0 victories.