Official PBP qualifications:
200 km - March 29: Sliven
200 km - April 5: Isperih
300 km - April 19: Sliven
300 km - April 26: Isperih
400 km - May 17-18: Isperih/Sliven
600 km - June 7-8: Isperih/Sliven
Preparation for PBP :
200 km - June 21: Sliven /unofficial/
300 km - July 12: Sliven/Isperih
200 km - August 2: Sliven /unofficial/
Official after PBP End of Season:
200 km - October 11: Sliven