Due to the expansion of Ekstraliga 2012 to 10 teams, the playoffs were played by teams: CKM Włókniarz Częstochowa (last team of Ekstraliga 2011) and Start Gniezno (3rd team of I League 2011). Results:
1. Start Gniezno - CKM Włókniarz Częstochowa 43:47 (2.10.2011)
2. CKM Włókniarz Częstochowa - Start Gniezno 44:46 (16.10.2011).
The place in Ekstraliga was kept by the team of CKM Włókniarz Częstochowa. In addition, Ekstraliga 2012 was completed by the first two teams in I League 2011: Polonia Bydgoszcz and Lotos Wybrzeże Gdańsk.