In addition to the two FIF teams, 49 other teams from 6 different countries played in Girls 12. They were divided into 10 different groups, whereof FIF Håndbold 1 could be found in Group 7 together with OV Helsingborg HK 1, IK Sävehof 2, Handbalschool Brabant 2 and LUGI HF 2.

FIF Håndbold 1 made it to Playoff A after reaching 1:st place in Group 7. Once in the playoff they won every match inluding the Final against Eslövs IK, which they won with 16-11. Thereby FIF Håndbold 1 won the entire Playoff A in Girls 12 during Lundaspelen Handball 2018.