woman walking on green grass field

KAT100 by UTMB 173K

173K·Fieberbrunn, Austria
ultra100 mile100k50kmountainforesthigh altitudetechnicaltrailqualifier

Photo by Massimo Sartirana on Unsplash

Distance173K
Date6 Aug 2026

About This Race

The 173K represents the ultimate test at KAT100, demanding exceptional endurance and pacing discipline across the full spectrum of Kitzbühel Alps terrain over what becomes a multi-day mental and physical challenge. This distance requires runners to demonstrate mastery of technical alpine descents, sustained climbing ability, and the psychological resilience needed for extended time on challenging mountain terrain, often finishing well into the following day. Best suited for experienced ultra-distance runners seeking a serious stepping stone toward 200K events, the 173K tests every aspect of mountain ultra running while remaining more accessible than the full 200K distance.

Practical Info

Nearest Airport

SZG

Best For

mountain runnersultra runnerstrail running enthusiastsUTMB qualifiers

Notable Features

The event offers spectacular cable car access for spectators to witness the action at high-altitude checkpoints, creating a unique festival atmosphere throughout the Kitzbühel Alps. As a UTMB World Series event, it provides qualification opportunities for the Ultra-Trail du Mont-Blanc while showcasing the pristine alpine environment of the Austrian Tyrol.