Question 1

How hard is KAT100 by UTMB?

Accepted Answer

The flagship packs over 9,000m of climbing into roughly 169km — about 53m of gain per kilometre, sustained UTMB-grade steepness on rocky ridgelines and steep grass mountains. The Thursday 18:00 start means runners face the first night almost immediately and mid-pack finishers see two full nights. The 45-hour cutoff is workable, but only with efficient uphill hiking; the organisers bill it as one of the hardest trail events in the Alps.

Question 2

What distances does KAT100 offer?

Accepted Answer

Five races: the ~169km/9,000m+ 100 Miles, the 75km/4,100m+ Endurance Trail, the ~51km Marathon Trail, the ~24km Speed Trail and an 8km Easy Trail, plus a kids race. Check the official site for exact current-year figures — the courses have been adjusted between editions.

Question 3

When and where does KAT100 start?

Accepted Answer

The 100 Miles starts Thursday at 18:00 in Fieberbrunn. The Endurance Trail starts Friday at 23:59 in Kitzbühel and finishes in Fieberbrunn — trains connect the two towns in about 15 minutes, roughly every 30 minutes until around 01:00. The Marathon Trail starts Saturday morning in Fieberbrunn. All races finish in Fieberbrunn.

Question 4

How many Running Stones do I need to enter KAT100?

Accepted Answer

The 100 Miles requires 4 Running Stones and the Endurance Trail requires 3, entered through the UTMB World Series lottery system. Both races carry direct access to the UTMB Mont-Blanc finals. The 2026 flagship races sold out, so plan stones and registration well ahead.

Question 5

What is the mandatory gear for KAT100?

Accepted Answer

A full UTMB-style kit: waterproof layers, long trousers and long sleeves, first aid kit, GPS device with the course track, smartphone and a fluid reserve, among other items. The final list for each edition is published on the official site closer to race week; the previous year's list serves as reference in the meantime.

Question 6

How do I get to Fieberbrunn?

Accepted Answer

Fieberbrunn has its own railway station on the Salzburg–Tirol line with regular regional trains. Salzburg and Innsbruck are the nearest airports (roughly 1.5 hours by rail); Munich also works via Salzburg or Wörgl. Endurance Trail runners can take the late-evening train to the Kitzbühel start — service runs until around 01:00 on race night.

Question 7

Where should I stay for KAT100?

Accepted Answer

Fieberbrunn village centre is the strategic pick — registration, drop-bag drop-off, start and finish all revolve around the event hall. Central options include Hotel Metzgerwirt, Hotel Alte Post and the ADEA Lifestyle Suites aparthotel. The village is small and the race sold out its 2026 flagship distances, so book early; fallbacks are St. Ulrich am Pillersee, Hochfilzen or St. Johann in Tirol.

Name	Distance	Elevation	Category	Date
100 Miles	173km	9,900m+	Ultra	Aug 5, 2026
Endurance Trail	81km	4,850m+	Ultra	Aug 6, 2026
Marathon Trail	51km	3,250m+	Ultra	Aug 7, 2026
Speed Trail	24km	1,650m+	Sub Ultra	Aug 7, 2026
Easy Trail	8km	250m+	Sub Ultra	Aug 7, 2026
Kids Trail	nullkm	TBD	Sub Ultra	Aug 6, 2026

KAT100 by UTMB

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