A proposal for a merger between the two clubs in 1958 was resoundingly rejected, with only three of the 266 members voting in favour.

Hertha BSC had the privilege of playing at its home ground despite being the designated away team and won the match 3–0.

Hertha BSC then completed the double over Tennis Borussia Berlin by winning 2–1 at the Olympiastadion on 10 May 1975.

Following the relegation of Tennis Borussia Berlin at the end of the 1974–75 Bundesliga season, the pair did not meet again until 13 November 1976.

Tennis Borussia Berlin won the match 2-1 and thus achieved its sole victory against the Die Alte Dame 2–1.

[9] The club was able to recruit talents from all army sports communities (German: Armeesportgemeinschaft) (ASG) in East Germany.

[10] It was also able to recruit talented players from other clubs that had been called up for military service with the National People's Army.

The team and its place in the DDR-Oberliga were transferred to the new sports club SC Dynamo Berlin.

The German Football Association of the GDR (German: Deutscher Fußball-Verband der DDR) (DFV) instead found local rival and league runners-up ASK Vorwärts Berlin to be a more suitable representative of East Germany in the competition.

[14][19][20] The club would eventually be able to draw on talents from training centers (TZ) across East Germany through an extensive scouting network that included numerous training centers (TZ) of SV Dynamo.

[28] BFC Dynamo was seen as the supreme representative of the security agencies, with advantages in the recruitment of players and financial support as well as the political clout of Erich Mielke.

FC Union Berlin on the other hand was seen as a football club of the working class, confined to struggle the shadow of BFC Dynamo.

The home boroughs of the two clubs, Hohenschönhausen and Köpenick respectively, were dangerous territories for supporters of the opposing team.

FC Union Berlin accompanied the supporters of Hertha BSC when Hertha BSC played in East Germany or the Eastern Bloc countries, such as the quarter-finals in the 1978–79 UEFA Cup against Dukla Prague.

FC Union Berlin and Hertha BSC now sang xenophobic and nationalist chants together.

[51] Fans of both club's paid for admission in East and West Germany's respective currencies and sang songs of German reunification as Hertha won 2–1.

FC Union Berlin midfielder André Sirocks [de] levelled the scores at 1–1 before half-time.

Hertha BSC eventually won the tie 2–1, thanks to a long range strike from Dirk Greiser.

FC Union Berlin were placed into the third tier NOFV-Oberliga Mitte, winning the division in all three seasons it existed.

In two consecutive seasons at the end of the 1990s, Tennis Borussia Berlin were drawn to face Hertha BSC in the DFB-Pokal, during a period when Hertha were among German's strongest teams but TeBe had also acquired a rich backer and made expensive signings in an effort to climb through the divisions.

[51] In their first meeting in 1998, TeBe won 4–2 to progress to the quarter-finals in a surprise result (particularly as Hertha qualified for the UEFA Champions League at the end of the season).

[52] In 1999's Round of 32, Hertha battled to a 3–2 victory but required extra time to overcome their neighbours.

Hertha BSC supporter and radio commentator Manfred Sangel recalled “The stadium announcer kept having a go at us and at one of our players.” 1.

FC Union Berlin played Hertha BSC in the first-ever competitive meeting between the pair.

FC Union Berlin goalscorer Christopher Quiring labelled Hertha's fans Wessis, a semi-derogatory term for West Germans, telling Sport1 "They cheer in our stadium.

FC Union Berlin gained promotion to the Bundesliga for the first time in their history.

[56] An 87th minute Sebastian Polter penalty secured a 1–0 win for Union; the game was temporarily suspended by referee Deniz Aytekin, following fireworks fired by Hertha fans landing amongst Union Berlin fans, as well as on the playing surface.

FC Union Berlin goalkeeper Rafał Gikiewicz won praise from fans and media alike after ushering Union Berlin ultras from the field of play, following a minor pitch invasion devised to attack Hertha supporters.

[58] The second Berlin derby of the season, originally scheduled for 21 March 2020, was due to be played behind closed doors following advice from the Bundesministerium für Gesundheit, as a result of the COVID-19 pandemic in Germany[59] but was later postponed following the Bundesliga's suspension until 2 April.

[60] On 22 May 2020, Hertha BSC played Union Berlin at the Olympiastadion behind closed doors, winning 4–0; the biggest competitive victory between the pair.