In addition to Assyriska BK, 207 other teams from 37 different countries played in Boys 15. They were divided into 52 different groups, whereof Assyriska BK could be found in Group 19 together with FC Kristinehamn, FK Lillehammer 1 and Tips Football. Assyriska BK continued to Play off A after reaching 2:nd place in Group 19. In the playoff they made it to 1/64 Final, but lost it against Tynecastle Football Club with 0-4. In the Final, J-L Juniors won over TSV Havelse and became the winner of Play off A in Boys 15. Assyriska BK also participated in Boys 14 during Gothia Cup 2013. They reached the 1/32 Final in B14 Play off A, but lost it against Marin FC with 0-1.