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Green / Black /
White
In addition to GAIS, 162 other teams from 31 different countries played in Boys 12. They were divided into 40 different groups, whereof GAIS could be found in Group 1 together with Lørenskog IF 1, Colégio Guadalupe and Markaryds IF. GAIS continued to Play off A after reaching 2:nd place in Group 1. In the playoff they made it to 1/32 Final, but lost it against IFK Göteborg with 2-5. In the Final, IFK Stocksund Blå won over Florø SK 1 and became the winner of Play off A in Boys 12. GAIS also participated in Boys 11 during Gothia Cup 2013. They reached the 1/32 Final in B11 Play off A, but lost it against IF Brommapojkarna Röd with 2-4.