The first goal came in the last seconds of the first half. The returnee Besara got the ball outside the penalty area and shot it in via a Kalmar leg.
Ten minutes into the second half, Kalmar had a great position on the corner, but ÖSK goalkeeper Oscar Jansson was on the scoresheet.
Shortly afterwards, most people probably thought that Besara had made it 2-0, but the beautiful shot was ruled out for offside when the referee Fredri Klitte thought that Erik Björndahl affected the game when he ran through the penalty area.
But Besara, 29, did not despair. Instead, he was alert when Viktor Elm hit a horrible foul. Besara chipped in the 2-0 goal over Lucas Hägg-Johansson in the Kalmar goal.
The victory was then determined by David Seger who distinctly shot in 3-0 at the goalkeeper's right post.
Kalmar had a chance to reduce right at the end, but Jansson made a magnificent double save and kept the score at zero.