In addition to IK Zenith, 207 other teams from 37 different countries played in Boys 15. They were divided into 52 different groups, whereof IK Zenith could be found in Group 22 together with Boo FF 2, FC Neumünster Zürich and Roterud IL 2. IK Zenith continued to Play off B after reaching 3:rd place in Group 22. In the playoff they made it to 1/16 Final, but lost it against TSV Uesen with 4-5. In the Final, Brazilian FC won over Runar, IL and became the winner of Play off B in Boys 15. IK Zenith also participated in Boys 14 during Gothia Cup 2013. They reached the 1/64 Final in B14 Play off A, but lost it against Hönö IS with 1-2.