In addition to Stenungsunds IF, 141 other teams from 26 different countries played in Boys 13. They were divided into 35 different groups, whereof Stenungsunds IF could be found in Group 21 together with JSSL Arsenal Singapore 2, Skedsmo 1 and Wedeler TSV. Stenungsunds IF continued to Play off A after reaching 2:nd place in Group 21. In the playoff they made it to 1/32 Final, but lost it against Ramlösa Södra FF 1 with 0-4. In the Final, Accademia I.C. won over Kopron Football Team and became the winner of Play off A in Boys 13. Stenungsunds IF also participated in Boys 12 during Gothia Cup 2013. They reached the 1/32 Final in B12 Play off B, but lost it against Särö IK with 2-3.