In addition to Rosersbergs IK, 107 other teams from 14 different countries played in Girls 15. They were divided into 18 different groups, whereof Rosersbergs IK could be found in Group 16 together with HC Eynatten-Raeren, Son HK, Hellerup IK 1, OV Helsingborg and Kjelsås IL 2. Rosersbergs IK continued to A-Play-off after reaching 2:nd place in Group 16. In the playoff they made it to 1/16 Final, but lost it against Fjölnir 2 with 11-13. In the Final, Hellerup IK 1 won over Skogås HK and became the winner of A-Play-off in Girls 15.