Once again a lower to mid-table side the club's performance improved in the early 1970s leading to a Regionalliga title in 1973 and a failed participation in the promotion rounds for the top-flight Bundesliga. League re-organisation at the end of the 1973–74 season led to the breakup of the existing Regionalliga: first placed Tennis Borussia Berlin was promoted to the Bundesliga, runner-up Wacker 04 Berlin joined the newly formed second tier 2. Bundesliga, while third place Blau-Weiss landed in the Amateurliga Berlin (III).