After two points-even periods, Södertälje made a small jerk in the third.
The lead with two points at the break became 14 with just under three minutes left of the period.
Södertälje showed a flawless shooting and increased the aggressiveness of the defense and it gave results.
Norrköping had a hard time getting to the offensive and once the shooting positions came it was often call out.
Norrköping scored only nine points in the third period.
Södertälje's Viktor Gaddefors reaped great success offensively and had scored 17 points after three periods.
Gaddefors showed great breadth by lowering threes, threatening in the attacking game and showing strength near the basket.
Nice collaboration between the brothers
In the end, it was 26 points for Gaddefors who was the best scorer in the match.
He also became the best scorer in the match with 13.
Viktor's brother, Anton Gaddefors, also had a successful evening and landed on 18 points.
With four minutes left in the match, the brothers offered a delicious collaboration when Anton went to the basket, put on guard and passed out to Viktor.
At speed, Viktor received the ball, went hard against the basket and lowered a second.
Norrköping never recovered from Södertälje's move in the third period.
In the end, the numbers ran away and Södertälje won 89-57.