In addition to BK Häcken, 42 other teams from 8 different countries played in Girls 12. They were divided into 10 different groups, whereof BK Häcken could be found in Group 7 together with Qviding FIF 2, Beijing Ziyan and Torslanda IK. BK Häcken continued to Play off A after reaching 1:st place in Group 7. In the playoff they made it to 1/8 Final, but lost it against Boo FF 1 with 2-3. In the Final, AIK FF won over JSSL Arsenal Singapore and became the winner of Play off A in Girls 12. BK Häcken also participated in Girls 12 during Gothia Cup 2013. They reached the 1/16 Final in G12 Play off A, but lost it against NuPS/FC WILD YJ with 1-3.