In addition to the two IFK Lidingö FK teams, 140 other teams from 26 different countries played in Boys 13. They were divided into 35 different groups, whereof IFK Lidingö FK 2 could be found in Group 29 together with KF Winner Prizren, TSV SÜDERBRARUP and Lillestrøm SK. IFK Lidingö FK 2 continued to Play off B after reaching 3:rd place in Group 29. In the playoff they made it to 1/16 Final, but lost it against Süderneulander SV with 0-3. In the Final, Syrianska FC won over TSV Neudorf-Bornstein and became the winner of Play off B in Boys 13. IFK Lidingö FK also participated in Boys 12 during Gothia Cup 2013. They reached the 1/16 Final in B12 Play off B, but lost it against GAIS with 2-6.