In addition to Kalmar FF, 24 other teams from 11 different countries played in Gothia Puma Trophy (B17). They were divided into 6 different groups, whereof Kalmar FF could be found in Group 5 together with Trelleborgs FF, Helsingborgs IF and Cerezo Osaka. Kalmar FF continued to Play off B after reaching 3:rd place in Group 5. In the playoff they made it to 1/4 Final, but lost it against IFK Norrköping with 0-2. In the Final, IK Sirius FK won over Halmstads BK and became the winner of Play off B in Gothia Puma Trophy (B17). Kalmar FF also participated in Gothia Trophy (B17) during Gothia Cup 2018. They reached the Semi final in B17E Play off B, but lost it against TikiTaka Academy with 0-1.