Orange / Orange /
In addition to FK Karlskrona, 31 other teams played in SEF Trophy. They were divided into 8 different groups, whereof FK Karlskrona could be found in Group 6 together with Djurgården IF FF, Örgryte IS and GIF Sundsvall. FK Karlskrona also participated in SEF Trophy during Gothia Cup 2018. They reached the 1/8 Final in SEF Play off A, but lost it against IFK Stocksund with 2-4.