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Experience the ultimate test of endurance with the BSI Lake Balaton Supermarathon organized by Budapest Marathon Organisation. Runners from around the world can challenge themselves in this 4-day-long race, covering a total distance of 196.45 km around Hungary's picturesque Lake Balaton. Whether as an individual or as part of a relay team, participants can set their own daily distances, making this a truly customizable and unforgettable running experience.