In addition to Carpe Diem FC, 154 other teams from 30 different countries played in Boys 13. They were divided into 38 different groups, whereof Carpe Diem FC could be found in Group 7 together with Halmstads BK, Sollentuna FK 2 and International School of Kenya. Carpe Diem FC continued to Play off A after reaching 2:nd place in Group 7. In the playoff they made it to 1/32 Final, but lost it against IFK Österåker with 0-3. In the Final, IF Brommapojkarna 1 won over IF Brommapojkarna 2 and became the winner of Play off A in Boys 13. Carpe Diem FC also participated in Boys 12 during Gothia Cup 2018. They reached the 1/64 Final in B12 Play off A, but lost it against IK Zenith 1 with 1-3.