Throughout 1912, ĐSK played friendlies in parts of Austria-Hungary populated by South Slavs. First such trip outside of Sarajevo was to the city of Split where ĐSK played local side Hajduk. The first match took place on 7 April 1912 and Hajduk won, 4–1. A day later on 8 April, the teams played another match with ĐSK winning this time, 2–1. Curiosity from the Split visit was that posters announcing the two matches around the city billed ĐSK as "Osman" for non-specified reasons. This probably stemmed from the fact that "ĐSK" as club name was informally used even amongst its players so the Split hosts decided to make up a name for their guests' club on the spot. They seemingly found the male Muslim name Osman to be sufficiently funny and decided to print it on the posters as the club's official name.