The Race Around Austria CHALLENGE (560 kilometers and climb over 6,500 meters) offers beginners a fantastic opportunity to get involved in the exciting sport of ultracycling. It is a 24-hour race that takes the competitors along most of the border of Upper Austria. Whereas a classic 24-hour race involves cycling over and over along the same 20-kilometer-long circular route, for the Race Around Austria CHALLENGE you will only complete one long loop. Each cyclist can be accompanied by a maximum of one support vehicle.