XXIII SVS (SLIVEN-VARNA-(SOFIA)-SLIVEN)

XXIII SVS is a Bulgarian cycling brevet series centered on Sliven, Varna, Sofia, and a return to Sliven. It operates within the long-distance randonneuring sphere, distinct from typical road racing. Participants must present a completed brevet ladder of 200, 300, 400, and 600 or 1000 km rides from the current season, or a 1000 km or 1200+ km brevet from the preceding two seasons. The name signifies a large loop across Bulgaria, with Sliven and Varna as key locations and Sofia noted parenthetically within the broader route. The event targets seasoned endurance cyclists familiar with managing extended road hours, controls, sleep schedules, and self-reliance. Logistics are managed via online pre-registration, a public status spreadsheet, accessible regulations, and an initial entry fee of 30 euros; train schedules between Sliven and Varna are also supplied for participants arranging travel around the event's start or end.