In addition to MTV Lübeck, 15 other teams from 7 different countries played in Boys 21. They were divided into 2 different groups, whereof MTV Lübeck could be found in Group 2 together with Barken HF, AEH Les Franqueses del Vallès, Dreams Youth Sports Club, HFI National Team, SG Wehrheim/Obernhain, HF SIF and IK Baltichov. MTV Lübeck made it to B-Play-off after reaching 6:th place in Group 2. Once in the playoff they made it all the way to the Final, but lost it against OV Helsingborg with 19-20. Thereby MTV Lübeck finished second in B21 B-Play-off during Partille Cup 2019.