UTC100M

UTC100M

The organiser gives 110 km and 7,200 m of climbing, with a 48-hour limit. The night opens with the long ascent out of Corte to the first aid station at Aleri, around km 13 and nearly 1,600 m up. The course then works through Calacuccia (km 33, hot food) to the crossing of Bocca Crucetta, the highest point of the profile at over 2,400 m, before Ballone, Ciattarinu, Inzecche, E Grotelle, Tragone and Alzu bring it back toward Corte. Between Calacuccia and Ballone there are about fifteen kilometres and the big pass with no aid at all.

The organiser’s own timing table shows how wide the field is: the fastest are expected back in Corte early on Friday afternoon, the last finishers late on Saturday evening. That is up to two nights out for some runners, and it is reserved, in the organiser’s words, for seasoned trail runners.

This page covers the 2027 UTC100M. On Livebib, family follow the runner’s position on the course line, the distance covered and a finish estimate that updates through both days. In the gorges and under the high passes, where the phone loses signal, the position is carried forward along the course and marked as estimated instead of freezing.