Until the founding of the Seoul E-Land FC, there were other football clubs in Seoul, but they could not play against FC Seoul on a professional level. The other clubs were all organized in the K3 League . With the establishment of Seoul E-Land FC, the Seoul city derby also came into being. Both clubs play in the professional league of South Korea, but in different league classes. While FC Seoul is in the K League Classic , Seoul E-Land FC is in the second-rate K League Challenge . Both clubs meet in the R-League and in the K League Junior . However, there is still no major rivalry between the two fan camps. Since Seoul E-Land FC was only founded in 2015, there is still no large fan camp. The derby only exists today because of the sporting rivalry.