In addition to Onsala BK, 147 other teams from 33 different countries played in Boys 18. They were divided into 36 different groups, whereof Onsala BK could be found in Group 34 together with SC Nienstedten, Lørenskog IF and San Diego Football Academy. Onsala BK continued to Slutspel B after reaching 3:rd place in Group 34. In the playoff they made it to 1/4 Final, but lost it against Elite Football FC with 1-2. In the Final, Corsa FC 1 won over C.B./Oeste Solidaria and became the winner of Slutspel B in Boys 18.