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In addition to Onsala BK, 134 other teams from 27 different countries played in Boys 18. They were divided into 33 different groups, whereof Onsala BK could be found in Group 30 together with Sandvikens AIK, IL Runar 1 and Jakarta Dragons. Onsala BK continued to Play off A after reaching 1:st place in Group 30. In the playoff they made it to 1/8 Final, but lost it against Higashiyama Highschool with 0-1. In the Final, Kharis Sports Academy won over Greengen FC and became the winner of Play off A in Boys 18.