In addition to FC Ajax - Tallinn, 224 other teams from 34 different countries played in Boys 15. They were divided into 55 different groups, whereof FC Ajax - Tallinn could be found in Group 10 together with Nosaby IF, Tranås FF and Kubikenborgs IF. FC Ajax - Tallinn continued to Play off B after reaching 4:th place in Group 10. In the playoff they made it to 1/64 Final, but lost it against Staffanstorps GIF 2 with 1-3. In the Final, Stångebro United won over Sandarna BK and became the winner of Play off B in Boys 15. FC Ajax - Tallinn also participated in Boys 14 during Gothia Cup 2015. They reached the 1/64 Final in B14 Play off B, but lost it against Hönö IS with 3-4.