After the experience of the first two editions of the 100 miles, some precautions were necessary, so a real restyling of the track was made, practically dividing the Valdorcia into three parts: the ” Valdorcia of Wine” which will go up to Montalcino to return to life base in Castiglione d’Orcia, the “Classic Valdorcia” it will travel through the territories of San Quirico d’Orcia and Pienza which with the 53 km will return to Castiglione d’Orcia and the “Mountain Valdorcia” which will rise to 1100 meters above sea level.