Gothenburg regained top spot with a regulation 3-0 defeat of Gefle.
With Kalmar and AIK both on 41 points, victory over their mid-table hosts takes Gothenburg two clear on 43.
Hannes Stiller opened the scoring after 29 minutes and hit a second in the 51st minutes, with Gustav Svensson splitting those strikes with a 47th-minute effort.
Elsewhere, Hammarby went down 1-0 at home to Orebro as substitute Kim Olsen scored the game's only goal.
Brommapojkarna also won, with Pablo Arce scoring the only goal against Helsingborgs.
