• BEGACH Running Club
    • BEGACH is a running club based in Sofia that organizes a variety of races every year as well as the running seminar Fizkultura every spring.  (Full disclosure I am a member)
  • Trail Series (Bugarian)
    • The Series that got me into trail running, they offer a trail race once a month in the vincinity of Sofia in one of three distances 5k, 10km and 15km+. They also organize the Pirin Skyrun and Vertical Kilometer in July. 
  • 5km Run (Bulgarian)
    • Offers weekly free 5km Park Runs in Sofia (2), Plovdiv, Burgas and Varna. They reward their consistent participants with a series of t-shirts based on your total run distance. They also organise a other runs called XLkmRuns that vary in terrain and location. At the moment the XLkmRuns are all located in the Sofia Area. 
  • iRun (Bulgarian)

Air Quality

Unfortunately as a runner this is something we have to take into consideration, especially in the winter months. My general restriction is to try to avoid running in the afternoon hours (12PM to 6PM) in the winter months.