In addition to Hammarby IF, 141 other teams from 26 different countries played in Boys 13. They were divided into 35 different groups, whereof Hammarby IF could be found in Group 17 together with KFCE Belzele, SC Nienstedten and Balltorps FF. Hammarby IF continued to Play off A after reaching 2:nd place in Group 17. In the playoff they made it to 1/32 Final, but lost it against FC Flora with 0-1. In the Final, Accademia I.C. won over Kopron Football Team and became the winner of Play off A in Boys 13. Hammarby IF also participated in Boys 12 during Gothia Cup 2013. They reached the 1/32 Final in B12 Play off A, but lost it against Blau-Weiß 96 Schenefeld with 2-4.