In addition to TSV Altenholz, 115 other teams from 30 different countries played in Boys 18. They were divided into 28 different groups, whereof TSV Altenholz could be found in Group 2 together with Club Atlético Almafuerte, SK Vard Haugesund and IFK Arvidsjaur. TSV Altenholz continued to Play off A after reaching 2:nd place in Group 2. In the playoff they made it to 1/16 Final, but lost it against Gunnilse IS with 0-5. In the Final, BK Häcken won over Lärje Angered IF and became the winner of Play off A in Boys 18. TSV Altenholz also participated in Boys 18 during Gothia Cup 2013. They reached the 1/32 Final in B18 Play off A, but lost it against Kampala Junior Team with 0-5.