Complex sentence: In practice this meant that they still played for the Austrian championship, the referred to as "Ostmark"-Champion, and the winner tokk part in the Germanwide title play-offs like the winners of the other German regions.
Split into simpler sentences: In practice this meant that they still played for the Austrian championship, then referred to as "Ostmark"-Championship. The winner took part in the Germanwide title play-offs like the winners of the other German regions.