In addition to the two Ski teams, 134 other teams from 16 different countries played in Girls 15. They were divided into 22 different groups, whereof Ski IL 1 could be found in Group 5 together with Skogås HK, Skjern Håndbold 2, MTV Dänischenhagen, Kärra HF 1 and Herkules IF. Ski IL 1 continued to A-Play-off after reaching 3:rd place in Group 5. In the playoff they made it to 1/32 Final, but lost it against Viborg HK 1 with 11-12. In the Final, Skanderborg HB 1 won over Rødekro-Aabenraa Håndbold and became the winner of A-Play-off in Girls 15. Ski IL also participated in Girls 14 during Partille Cup 2018. They reached the 1/8 Final in G14 A-Play-off, but lost it against Helsingör IF with 10-14.