Union Berlin continued its impressive home series at the start of the season in the Bundesliga and only granted Bayer Leverkusen's new coach Gerardo Seoane one point for his debut.
Taiwo Awoniyi (7th minute) for the Eiserne and Moussa Diaby (12th) for the Werkself scored the early goals to make it 1-1 (1-1) in the duel of the two European Cups in front of around 11,000 spectators in the stadium at the Alte Försterei on Saturday -Starter.
The Berliners remained unbeaten in the 17th league home game in a row.
The point win also gives them a good feeling before the trip to their playoff first leg in the Conference League on Thursday in Helsinki against Kuopio PS - their first compulsory international appearance in 20 years.
Bayer coach Seoane got the full dose before kick-off.
The backdrop in the stadium at the Alte Försterei was vocal even when the arena was only half full.
Patrik Schick (2nd) could quickly have put an end to the good mood in Berlin-Köpenick.
The Czech European Championship goalscorer failed after a slip by Timo Baumgartl free-standing against Union goalkeeper Andreas Luthe.
So the iron fun barometer soon skyrocketed.
At first Max Kruse (6th) was still too undecided in the end, then Awoniyi showed why the Berliners have now firmly signed him from Liverpool FC.
His shot from the edge of the penalty area hit the Bayer goal behind Lukas Hradecky.
The Nigerian sank to his knees cheering.
Leverkusen reacted coolly.
Diaby fired the turbo a few later and gave Luthe no chance with a low shot.
Leverkusen dominated the midfield with clear technical advantages, in which Union Robert Andrich was surprisingly absent.
"Adductor problems" plagued the clearer, it was said.
Probably it was also the ambition to change direction to Bayer, whether this August or not until the coming season will be revealed in the next few days.
Union coach Urs Fischer had vigorously pushed Bayer and his Swiss compatriot Seoane as the favorite.
In fact, however, a duel at eye level developed without a great attractiveness factor.
Leverkusen didn't know what to do with their better footballing resources.
Union was traditionally compact and hoped for offensive switching moments.
Genki Haraguchi (53rd) got bogged down like Levin Öztunali (68th) in the penalty area.
The Union fans understood the actions as a signal of departure - in vain.
Fischer brought in Cedric Teuchert for Kruse (73rd) a German Olympic rider for the other.
Seoane followed suit with the substitution of his Brazilian Olympic champion Paulinho.
Teuchert (85th) had another chance from an acute angle, and Hradecky was sure to keep a header from Marvin Friedrich (86th).