In addition to GAIS, 154 other teams from 30 different countries played in Boys 13. They were divided into 38 different groups, whereof GAIS could be found in Group 31 together with JSSL Singapore 2, Southern Beach FC, IFK Haninge and Helsingborgs IF. GAIS continued to Play off A after reaching 1:st place in Group 31. In the playoff they made it to 1/16 Final, but lost it against Dallas Texans Soccer Club with 0-2. In the Final, IF Brommapojkarna 1 won over IF Brommapojkarna 2 and became the winner of Play off A in Boys 13. GAIS also participated in Boys 12 during Gothia Cup 2018. They reached the 1/32 Final in B12 Play off A, but lost it against Gideao Soccer with 1-2.