KAT100 by UTMB

KAT100 by UTMB is a multi‑race trail running festival held in and around Fieberbrunn in the Kitzbühel Alps, scheduled for 06–08 August 2026. As an official UTMB World Series event, the weekend brings together ultra‑distance and shorter trail races under the KAT100 brand and the event's Running Stones identity. The programme combines highly challenging alpine courses with a village atmosphere for participants, supporters and families. The event hub and most race starts are centred on Fieberbrunn with additional viewing points and shuttle links across the region.

The race weekend features several distances from the 173 km 100 Miles down to an 8 km Easy Trail and a Kids Trail, with technical climbs, high alpine terrain and significant elevation gain on the longer routes. Onsite facilities include an expo area, live entertainment, award ceremonies and services such as aid stations, shuttle transfers and drop‑bag handling for specified distances. Registration and race status vary by distance (several long distances are sold out while the Easy Trail remains open as noted on the official registration pages). For full race pages, entry conditions and the athlete information materials consult the official event website at kat.utmb.world.