Zealand Series (Danish: Sjællandsserien, SS, Herre Sjællandsserien) is the highest division for men organized by the regional association DBU Sjælland and one of the fifth-highest divisions overall in the Danish football league system. The Zealand Association Football Championship (Danish: Sjællandsmesterskabet, SM) was introduced a week after the association's foundation in 1902 and was played in a cup format until actual league formats organized on a double round-robin basis including promotions and relegations were introduced in 1927 with the highest ranking division being named Mesterrækken (or SBUs Mesterrække to distinguish it from the other regional leagues). At the time of the league's introduction, it was placed at the top of the Danish football league system, but has since been m