Oldest capital derby

Oldest capital derby or Oldest Sofia derby (Bulgarian: Най-старото столично дерби) is the name of the football match between the oldest still existing teams in the capital of Bulgaria: Slavia Sofia and Levski Sofia. Matches between the two sides have been played almost continuously ever since a football league in Bulgaria has existed. The two teams regularly competed for the title before World War II. Levski have never been relegated from the top flight, while Slavia have missed only one season, for political reasons. This is the most frequently played match in Bulgarian football.