KAT100 by UTMB - Marathon Trail® 2026
This page is generated independently by RAVIT. RAVIT is not affiliated with UTMB Group SAS, the race's official organizer.
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB® Index and details of the 6 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB®?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB® Index (utmb.world) to get a personalized estimate.
Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions
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Cut-off times and crew - KAT100 by UTMB - Marathon Trail® · 2026
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | Wildseeloderhauskm 10.1 | Lärchfilzhochalmkm 16.9 | Parkplatz Herrgottbrückekm 27.8 | Karschermkm 34.3 | Lärchfilzhochalmkm 43.2 | Fieberbrunnkm 50.7 |
|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available |
| Brand products · Näak | available | available | available | available | available | available |
Elevation profile
The course and its aid stations
KAT100 by UTMB - Marathon Trail®: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 8h55 to 5h30. These times include aid-station stops: they come from real durations between two timing points, and this race's timing does not measure stops separately.
SourceBelow a UTMB® Index of roughly 310, the overall cut-off of 12h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|
| 500 | 8h55 | — | 535 g | 6.2 L | 4,458 mg | +3h05 |
| 550 | 8h02 | — | 482 g | 5.6 L | 4,017 mg | +3h58 |
| 600 | 7h28 | — | 448 g | 5.2 L | 3,733 mg | +4h32 |
| 650 | 7h04 | — | 424 g | 4.9 L | 3,533 mg | +4h56 |
| 700 | 6h23 | — | 383 g | 4.5 L | 3,192 mg | +5h37 |
| 750 | 5h57 | — | 357 g | 4.2 L | 2,975 mg | +6h03 |
| 800 | 5h30 | — | 330 g | 3.9 L | 2,750 mg | +6h30 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
Measured on the 2026 edition: the field checkpoint by checkpoint
455 starters, 9.2% DNF rate, 9 timed checkpoints.
| Segment | km | Median | Middle half | Measured | Median passage | Still ranked |
|---|---|---|---|---|---|---|
| Start Fieberbrunn → Lauchsee - 1 | 1.7 | 13 min | 12 min – 15 min | 444 | 13 min | 455 |
| Lauchsee - 1 → Wildseeloderhaus | 10 | 1 h 36 | 1 h 27 – 1 h 46 | 439 | 1 h 48 | 454 |
| Wildseeloderhaus → Larchfilzhochalm | 16.8 | 1 h 17 | 1 h 07 – 1 h 30 | 440 | 3 h 05 | 453 |
| Larchfilzhochalm → Lauchsee - 2 | 22.3 | 39 min | 33 min – 45 min | 434 | 3 h 44 | 442 |
| Lauchsee - 2 → Parkplatz Herrgottbrucke | 27.4 | 46 min | 41 min – 51 min | 417 | 4 h 31 | 426 |
| Parkplatz Herrgottbrucke → Karscherm | 33.8 | — | — – — | 0 | — | 413 |
| Karscherm → Larchfilzhochalm | 42.6 | — | — – — | 0 | 8 h 01 | 413 |
| Larchfilzhochalm → Lauchsee - 3 | 48.1 | 41 min | 35 min – 47 min | 386 | 8 h 43 | 413 |
| Lauchsee - 3 → Finish Fieberbrunn | 50 | 13 min | 11 min – 15 min | 401 | 8 h 56 | 413 |
“Median passage” is elapsed time from the start, not a clock time: the clock time depends on the edition.
Where runners drop out. Lauchsee - 2 (16) · Parkplatz Herrgottbrucke (13) · Larchfilzhochalm (11) out of 42 total DNFs.
RAVIT record from the official timing of the 2026 edition, data from September 17, 2026.
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KAT100 by UTMB - Marathon Trail® over the years
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — KAT100 by UTMB - Marathon Trail®
Weather for KAT100 by UTMB - Marathon Trail®
The weather for KAT100 by UTMB - Marathon Trail® will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for KAT100 by UTMB - Marathon Trail®, hour by hour on the courseFrequently asked questions
How many checkpoints?
KAT100 by UTMB - Marathon Trail® has 6 checkpoints: 6 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Parkplatz Herrgottbrücke: 10.9 km and 0 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
KAT100 by UTMB - Marathon Trail® is 51 km long with 3276 m of elevation gain.
How long to finish?
With a UTMB® Index of 600 (average runner), the estimated time is around 7h28 for KAT100 by UTMB - Marathon Trail®.
What's the weather forecast?
The weather for KAT100 by UTMB - Marathon Trail® will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for KAT100 by UTMB - Marathon Trail®?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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