HSG Rösrath-Forsbach was one of 27 clubs from Germany that had teams playing during Partille Cup 2013. They participated with one team in Boys 21. In addition to HSG Rösrath-Forsbach, 17 other teams from 7 different countries played in Boys 21. They were divided into 3 different groups, whereof HSG Rösrath-Forsbach could be found in Group 2 together with IK Sävehof, Torslanda HK 1, H.F.I India Team, Kärra HF and OV Helsingborg. HSG Rösrath-Forsbach continued to B-Play-off after reaching 6:th place in Group 2. In the playoff they made it to 1/4 Final, but lost it against GIK Wasaiterna with 11-24. In the Final, GIK Wasaiterna won over Mölndals HF and became the winner of B-Play-off in Boys 21. Rösrath-Forsbach comes from Köln which lies approximately 820 km from Göteborg, where Partille Cup takes place.