In addition to RK Dubrava, 85 other teams from 19 different countries played in Boys 15. They were divided into 14 different groups, whereof RK Dubrava could be found in Group 2 together with Tyresö Handboll, Hjortshöj Egå IF 2, Fjellhammer IL, Kärra HF and H 71. RK Dubrava made it to B-Play-off after reaching 4:th place in Group 2. Once in the playoff they made it all the way to the Final, but lost it against IK Sävehof 1 with 12-13. Thereby RK Dubrava finished second in B15 B-Play-off during Partille Cup 2013.