Trail ultramarathon · Austria

KAT100 by UTMB

Expected 5–7 August 2027 · Fieberbrunn, Tirol

100 Miles: Expected Thu, 5 August 2027

A Kitzbuhel Alps trail weekend based in Fieberbrunn with steep alpine climbs, high ridges, and multiple UTMB World Series distances.

2027 date is estimated

The organizer has not announced the next date yet. This estimate keeps planning useful without presenting it as official.

The mapped GPX is carried forward from 2026 until the new course is verified. Use it for course research, then re-check before race day.

Date source
Date not announced Thu, 5 August 2027 is a planning estimate. Check the organizer website before booking or training to this date.

Entry · 100 Miles · 2027 edition

Registration open

First come, first served until Wed 21 Jul 2027, 00:00 CEST or until places run out. Open on the organizer's page on 30 Sep 2026, which does not say how many places are left.

Requirement: a UTMB Index in the 100K or 100M category.

  1. ✓ Registration opens (UTMB Index holders)Tue 22 Sep 2026, 14:00 CEST
  2. ✓ Registration opensThu 24 Sep 2026
  3. Registration closesWed 21 Jul 2027, 00:00 CEST

Subscribe to these entry dates (updates when the organizer's dates change and we recheck them) · Download .ics. Separate from any training calendar; remove it any time in your calendar app.

From the organizer's page, checked 30 Sep 2026. TrailSplits does not know whether you have a place; the organizer is the final word.

Race Overview

KAT100 by UTMB is a trail ultramarathon expected around 5–7 August 2027 in Fieberbrunn, Tirol, Austria. TrailSplits currently includes 5 mapped courses for this event, with course maps, elevation profiles, weather context, and pacing tools for the uploaded GPX data.

How to get a place: General registration for the 5-7 August 2027 edition is open: UTMB Index holders from 22 September 2026 (48 hours), then everyone until 21 July 2027 or sell-out; no waiting list. Organizer's page, checked Wednesday 30 September 2026.

Date not announced
Date
Expected 5–7 August 2027
Type
Trail ultramarathon
Distances
5: 100 Miles, Endurance Trail 75K, Marathon Trail 51K, Speed Trail 24K, Easy Trail 8K
Biggest course
169 km · +9,000 m vert
Cut-off
45 h (16.0 min/km)
Location
Fieberbrunn, Tirol, Austria
100 Miles date
Expected Thu, 5 August 2027
100 Miles entry
Qualifying result required

TrailSplits is a free, independent route & pacing companion — not the official race. Visit the official KAT100 by UTMB site →

The organizer lists 100 Miles at 169 km and +9,000 m for 2027; the course file mapped here (the organizer's 2026 file) measures 163.2 km. Small differences come from how each figure was measured; plans and pacing here use the mapped file. Organizer's race list, checked Wednesday 30 September 2026.

Finishing 100 Miles earns 4 Running Stones (100M category) toward the UTMB World Series Finals lottery. How Running Stones work.

Racing more than once next year? Add 100 Miles to a season and see whether your races work together.

Compare it with other races; no account needed.

Explore the 100 Miles course

Inspect the official course track on a topographic map, through its elevation profile, or in 3D.

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Min Max

running direction two lines: out and back on the same path kilometres

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Selected distance

Free training plan — 100 Miles

Vert-focused blueprint with route-finder links into the Planner.

100 Miles plan 169 km · 9000 m D+

Prepare and return

Save 100 Miles to My Races

Keep this course, its training plan, calendar and future course updates together in your private My Races page. Saving does not publish your workouts, pace or progress.

Race route lab

Turn 100 Miles into a local rehearsal route

Open the official course in Planner, then choose a nearby start point to build a shorter loop that matches the course demand. This course averages about 53.3 m climb per km.

Race tools — 100 Miles

Expected Thu, 5 August 2027

Date not announced

Send to your watch

Load the KAT100 by UTMB 100 Miles GPX onto your GPS watch

Get the official course as a clean GPX or a Garmin TCX course, with step-by-step instructions to load it onto a Garmin, COROS, Suunto, Wahoo, or Komoot — free, no account needed.

Send to watch

Compare your training

Compare your route to the KAT100 by UTMB 100 Miles course

See how faithfully your rehearsal route matches the real race. The official course for 100 Miles loads as Route A — upload your training route to compare distance, elevation gain, estimated time, and how much of the course you actually cover.

Compare to the course

Course analysis

Analyze the KAT100 by UTMB 100 Miles course — every climb

See the 100 Miles course broken into its major climbs and descents in order — length, gain, average grade, and steepness — so you know where the crux is and how to pace and fuel it.

Analyze the course

Race-week reminders

Get a nudge before KAT100 by UTMB

A free browser notification in the final week — the course crux, the weather window, and loading the GPX onto your watch. No app, no email, no account.

KAT100 by UTMB — frequently asked questions

When is KAT100 by UTMB 2027?

KAT100 by UTMB 2027 races are expected to run 5–7 August 2027 in Fieberbrunn, Tirol; the 100 Miles is expected on Thu, 5 August 2027. Check the official race site for registration deadlines and final details.

How long is KAT100 by UTMB and how much climbing is there?

5 distances (8–169 km). The longest course is 169 km with about 9,000 m of vertical gain — a demanding mountain course.

What is the cut-off time for KAT100 by UTMB?

The 100 Miles course has a 45-hour cut-off, an average of 16.0 min/km to finish in time. TrailSplits' cut-off pacer shows the buffer at each aid station.

Is there a free GPX and course map for KAT100 by UTMB?

Yes. TrailSplits gives you the course map, an interactive elevation profile, a 3D flyover and a downloadable GPX for every mapped distance — free and with no sign-up.

How do I train for KAT100 by UTMB?

Each distance has a free, course-specific 16-week training plan built around its distance, vertical gain and cut-offs, plus a pace and cut-off calculator.

Is TrailSplits the official KAT100 by UTMB website?

No. TrailSplits is a free, independent route and pacing companion. For registration and official rules, visit https://kat.utmb.world/.

Analyze this route in the Planner

Load the GPX directly into TrailSplits for surface analysis and terrain intel.

Official website: https://kat.utmb.world/