Complex sentence: For Hertha BSC it marked the third consecutive final loss, which it would extend to four in the following seasonl but than would go on to win back-to-back championships in 1930 and 1931.
Split into simpler sentences: For Hertha BSC it marked the third consecutive final loss, a series the club would extend to four in the following season. Hertha would than go on to win back-to-back championships in 1930 and 1931.