Trail race training blueprint

Free 16-Week Training Plan for KAT100 by UTMB 100 Miles

Train for steep Austrian alpine climbs, high vertical density, and descents that demand strong quads.

At 169 km with 9,000 m of elevation gain, this is an ultra-distance effort that demands careful fueling, pacing, and mental resilience. At 53 m of vertical per kilometer, much of the course is runnable — the plan focuses on building your aerobic cruising speed while preparing you for the steeper sections. The official cutoff is 45 hours, so pace management starts from week one.

Expected race date: Thu, 5 August 2027 Qualifying result required 169 km · 9,000 m Start: 18:00

Use this date as a planning estimate

The organizer has not announced the 2027 event date. The plan will move when the official date is published.

Date source

Race prep workspace

Continue KAT100 by UTMB 100 Miles

Your race plan, next route workout, official GPX, fueling, cutoff, weather, and calendar link in one place.

First week
Week 1

Base Building · 0/6 workouts done

Next key workout
Easy hills + uphill strides

Tue · 2027-04-20 · 1h 20m · ~7.9 km · +475 m

Race demand
53 m/km

169 km · 9,000 m · Firm cutoff

Planning horizon
307 days

Expected Thu, 5 August 2027

Public race preparation

Share the training preview

I'm preparing for KAT100 by UTMB 100 Miles. Here is the public training preview. 169 km · +9,000 m · 307 days to race day Public preview only; my private routes and schedule changes are not included. Plan: https://trailsplits.com/races/kat100-by-utmb-100-miles/training-plan?tier=strong-finish&strength=1&strength_track=no-gym&engine=unified

Tier: strong-finish. Strength: no-gym.

My kept plans

No account needed. A kept plan stays on this browser until its storage is cleared; find it under My kept plans, where you can also change single weeks.

Optional account and live calendar

Save it to your account, subscribe once, then adjust concrete dates as life changes. Signed-in plan changes save automatically and update the same personal calendar URL.

Use the snapshot calendar without an account, or sign in for autosave.

Fuel calculator

Calendar

Choose a subscription that refreshes, or download a one-time copy.

Terrain autopilot

Find a matching route near you

We'll look for a loop near you that matches your next run (1h 20m · ~7.9 km · +475 m) and rehearses the 53 m/km demand of 100 Miles.

Terrain intel

Expect Kitzbuhel Alps singletrack, ski-area climbs, forest connectors, ridgeline sections, and sustained technical downhill.

Weather & kit

August can be hot in town but stormy and cold on high ridges, so kit and pacing need flexibility.

What this plan focuses on

  • Prioritize vertical gain and descent durability.
  • Practice poles and power hiking.
  • Use long climbs after easy running to mimic race fatigue.
  • Train fueling while hiking steep grades.
  • Plan heat and storm contingencies.

Unified race plan · beta

Uses the same load, recovery and taper rules as race discovery, with course-specific climbing only because this course has verified elevation.

Use it for race-effort sessions and race day. Easy runs stay easy whatever the goal; the plan's efforts come from how you run now.

Your starting point

Not stated. The plan assumes a typical starting week for this race and opens at 8h 25m of running.

Fit the plan to your recent training

A typical week over the last four weeks. Every box is optional: leave it empty if you would rather not say. 0 h 0 min means you are not running at the moment. When you give time, it sets the workload; distance alone is converted at 9 min/km.

Running time a week h min
Longest recent outing h min

This schedule opens at 8h 25m of running and 1,375 m of climbing in week one and peaks at 13h 50m and 3,550 m in a week; the longest planned outing is 6h 10m. These are prescriptions, not proof of readiness.

Adjust this plan

Swap concrete training days, or mark a day done/skipped without changing the race-specific template.

Calendar subscriptions refresh on the calendar app's schedule. This calendar export uses the selected start date and includes weekly summaries and any pre-base sessions. Use Keep this plan above for a fixed copy of the displayed race schedule.

Route-aware workouts

Key sessions include route buttons that deep-link into the Planner with pre-filled distance + elevation filters.

Course demand summary

The plan is scaled from the race profile, not a generic road-running template.

View full race analysis
Vertical density
53 m/km
hilly course
Descent load
extreme
Strength and downhill durability matter.
Peak week target
3,550 m
13h 50m total training time
Cutoff pressure
Firm cutoff
16.0 min/km average required. At an easy all-day pace the course takes about 43 h of the 45 h allowed.

That leaves little margin: a bad patch, the weather or an intermediate cutoff can decide the day, and more training buys less time on a course like this than it seems.For a first time, KAT100 by UTMB Endurance Trail 75K on the same weekend is the safer choice.

Training emphasis: time on feet, sustained climbing and descending, fueling, night running, and steady hike-run pacing.

Plan summary

The block begins on 2027-04-19, 28 weeks from now.

Duration
16 weeks
Start
2027-04-19
Peak weekly time
13h 50m
Peak weekly vert
3,550 m
Week 1 Base Building
8h 25m · 1,375 m vert
Mon · 2027-04-19 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-04-20 hills
Easy hills + uphill strides
1h 20m · 475 m vert · ~7.9 km
Effort: Easy; strides strong but relaxed
Start with 10 minutes easy on rolling terrain. Then 6 x 20 seconds uphill strides, strong but relaxed, walking back down between them. Finish with at least 10 minutes easy; the rest of the run is easy on the hills.
Find a route →
Tue · 2027-04-20 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-04-21 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-04-23 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-04-24 long
Long run
3h 45m · 700 m vert · ~26.5 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-04-25 recovery
Recovery run or hike
1h 10m · 200 m vert · ~7.5 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
Find a route →
Week 2 Base Building
8h 55m · 1,575 m vert
Mon · 2027-04-26 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-04-27 hills
Easy hills + uphill strides
1h 30m · 550 m vert · ~8.8 km
Effort: Easy; strides strong but relaxed
Start with 10 minutes easy on rolling terrain. Then 6 x 20 seconds uphill strides, strong but relaxed, walking back down between them. Finish with at least 10 minutes easy; the rest of the run is easy on the hills.
Find a route →
Tue · 2027-04-27 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-04-28 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-04-30 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-05-01 long
Long run
4h 00m · 800 m vert · ~27.9 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-05-02 recovery
Recovery run or hike
1h 15m · 225 m vert · ~8 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
Find a route →
Week 3 Base Building
9h 20m · 1,775 m vert
Mon · 2027-05-03 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-05-04 hills
Easy hills + uphill strides
1h 30m · 625 m vert · ~8.3 km
Effort: Easy; strides strong but relaxed
Start with 10 minutes easy on rolling terrain. Then 6 x 20 seconds uphill strides, strong but relaxed, walking back down between them. Finish with at least 10 minutes easy; the rest of the run is easy on the hills.
Find a route →
Tue · 2027-05-04 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-05-05 easy
Easy run
1h 00m · ~8.3 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-05-07 easy
Easy run
1h 00m · ~8.3 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-05-08 long
Long run
4h 10m · 900 m vert · ~28.6 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-05-09 long
Back-to-back: easy second day
1h 40m · 250 m vert · ~12.2 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 4 Base Building
6h 50m · 1,200 m vert
Mon · 2027-05-10 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-05-11 hills
Easy run + relaxed strides
1h 10m · 275 m vert · ~7.9 km
Effort: Easy; strides fast but relaxed
Start with 10 minutes easy. Then 6 x 20 seconds relaxed strides, with 1 minute easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-05-11 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-05-12 easy
Easy run
55 min · ~7.6 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-05-14 easy
Easy run
50 min · ~6.9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-05-15 long
Long run
3h 00m · 725 m vert · ~20.1 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-05-16 recovery
Recovery run or hike
55 min · 200 m vert · ~5.6 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
Find a route →
Week 5 Base Building
9h 50m · 2,150 m vert
Mon · 2027-05-17 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-05-18 hills
Easy hills + uphill strides
1h 30m · 700 m vert · ~7.8 km
Effort: Easy; strides strong but relaxed
Start with 10 minutes easy on rolling terrain. Then 6 x 20 seconds uphill strides, strong but relaxed, walking back down between them. Finish with at least 10 minutes easy; the rest of the run is easy on the hills.
Find a route →
Tue · 2027-05-18 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-05-19 easy
Easy run
1h 00m · ~8.3 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-05-21 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-05-22 long
Long run
4h 25m · 1,125 m vert · ~29.2 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-05-23 long
Back-to-back: easy second day
1h 50m · 325 m vert · ~13.1 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 6 Base Building
10h 45m · 2,400 m vert
Mon · 2027-05-24 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-05-25 hills
Easy hills + uphill strides
1h 45m · 825 m vert · ~9 km
Effort: Easy; strides strong but relaxed
Start with 10 minutes easy on rolling terrain. Then 6 x 20 seconds uphill strides, strong but relaxed, walking back down between them. Finish with at least 10 minutes easy; the rest of the run is easy on the hills.
Find a route →
Tue · 2027-05-25 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-05-26 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-05-28 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-05-29 long
Long run
4h 50m · 1,225 m vert · ~32 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-05-30 long
Back-to-back: easy second day
2h 00m · 350 m vert · ~14.3 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 7 Vert Accumulation
11h 15m · 2,675 m vert
Mon · 2027-05-31 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-06-01 hills
Uphill tempo
2h 00m · 925 m vert · ~10.4 km
Effort: Strong and sustainable
Start with 10 minutes easy. Then 5 x 8 minutes uphill at a strong, sustainable effort, with 3 minutes easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-06-01 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-06-02 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-06-04 easy
Easy run
1h 10m · ~9.7 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-06-05 long
Long run
5h 00m · 1,350 m vert · ~32.5 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-06-06 long
Back-to-back: easy second day
2h 00m · 400 m vert · ~13.9 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 8 Vert Accumulation
8h 10m · 1,625 m vert
Mon · 2027-06-07 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-06-08 hills
Easy run + relaxed strides
1h 20m · 300 m vert · ~9.1 km
Effort: Easy; strides fast but relaxed
Start with 10 minutes easy. Then 6 x 20 seconds relaxed strides, with 1 minute easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-06-08 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-06-09 easy
Easy run
1h 00m · ~8.3 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-06-11 easy
Easy run
1h 00m · ~8.3 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-06-12 long
Long run
3h 40m · 1,050 m vert · ~23.4 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-06-13 recovery
Recovery run or hike
1h 10m · 275 m vert · ~7 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
Find a route →
Week 9 Vert Accumulation
11h 55m · 2,950 m vert
Mon · 2027-06-14 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-06-15 hills
Uphill tempo
2h 00m · 950 m vert · ~10.3 km
Effort: Strong and sustainable
Start with 10 minutes easy. Then 5 x 8 minutes uphill at a strong, sustainable effort, with 3 minutes easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-06-15 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-06-16 easy
Easy run
1h 10m · ~9.7 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-06-18 easy
Easy run
1h 15m · ~10.4 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-06-19 long
Long run
5h 20m · 1,550 m vert · ~33.9 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-06-20 long
Back-to-back: easy second day
2h 10m · 450 m vert · ~15 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 10 Vert Accumulation
12h 35m · 3,125 m vert
Mon · 2027-06-21 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-06-22 hills
Uphill tempo
2h 00m · 950 m vert · ~10.3 km
Effort: Strong and sustainable
Start with 10 minutes easy. Then 5 x 8 minutes uphill at a strong, sustainable effort, with 3 minutes easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-06-22 strength
Strength (optional)
30 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-06-23 easy
Easy run
1h 15m · ~10.4 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-06-25 easy
Easy run
1h 20m · ~11.1 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-06-26 long
Long run
5h 40m · 1,675 m vert · ~35.9 km
Effort: Easy
Build relaxed time on feet at conversational effort. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-06-27 long
Back-to-back: easy second day
2h 20m · 500 m vert · ~16 km
Effort: Very easy
A second long outing on legs tired from yesterday. Keep it all easy; hiking is valid, and stop if your form goes.
Find a route →
Week 11 Peak Volume
13h 05m · 3,250 m vert
Mon · 2027-06-28 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-06-29 hills
Long climb and descent durability
2h 00m · 950 m vert · ~10.3 km
Effort: Steady race-specific effort
Start with 10 minutes easy. Then 3 x 12 minutes on familiar, controllable terrain at steady race-specific effort, descending under control for about 10 minutes between climbs, with poles and race kit where you will use them. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-06-29 strength
Strength (optional)
20 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-06-30 easy
Easy run
1h 15m · ~10.4 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-07-02 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-07-03 long
Long trail day: part 1
5h 50m · 1,775 m vert · ~36.6 km
Effort: Easy to steady
Use race-like terrain where practical, but keep the overall effort controlled. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-07-04 long
Long trail day: part 2
2h 55m · 525 m vert · ~20.7 km
Effort: Very easy
Move easily on tired legs. Hiking is valid; stop if mechanics deteriorate.
Find a route →
Week 12 Peak Volume
9h 25m · 2,025 m vert
Mon · 2027-07-05 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-07-06 hills
Easy run + relaxed strides
1h 35m · 375 m vert · ~10.6 km
Effort: Easy; strides fast but relaxed
Start with 10 minutes easy. Then 6 x 20 seconds relaxed strides, with 1 minute easy between repeats. Finish with at least 10 minutes easy; any remaining time is easy.
Find a route →
Tue · 2027-07-06 strength
Strength (optional)
20 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-07-07 easy
Easy run
1h 10m · ~9.7 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Fri · 2027-07-09 easy
Easy run
1h 10m · ~9.7 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
Find a route →
Sat · 2027-07-10 long
Long run
4h 15m · 1,350 m vert · ~26.3 km
Effort: Easy to steady
Use race-like terrain where practical, but keep the overall effort controlled. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
Find a route →
Sun · 2027-07-11 recovery
Recovery run or hike
1h 15m · 300 m vert · ~7.5 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
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Week 13 Peak Volume
13h 50m · 3,550 m vert
Mon · 2027-07-12 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-07-13 hills
Long climb and descent durability
2h 00m · 950 m vert · ~10.3 km
Effort: Steady race-specific effort
Start with 10 minutes easy. Then 3 x 12 minutes on familiar, controllable terrain at steady race-specific effort, descending under control for about 10 minutes between climbs, with poles and race kit where you will use them. Finish with at least 10 minutes easy; any remaining time is easy.
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Tue · 2027-07-13 strength
Strength (optional)
20 min
Effort: Moderate: controlled reps, stop 1–2 short of failure
No-gym Session A: Bulgarian split squat, single-leg RDL, step-ups (bench/stairs), calf raises, side plank. Quality reps; stop well before failure. If 10 reps feels easy, add weight (backpack/water) so the last 2 reps feel challenging. In peak weeks, keep it short and easy.
Wed · 2027-07-14 easy
Easy run
1h 20m · ~11.1 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Fri · 2027-07-16 easy
Easy run
1h 15m · ~10.4 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Sat · 2027-07-17 long
Long trail day: part 1
6h 10m · 2,000 m vert · ~37.9 km
Effort: Easy to steady
Use race-like terrain where practical, but keep the overall effort controlled. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
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Sun · 2027-07-18 long
Long trail day: part 2
3h 05m · 600 m vert · ~21.6 km
Effort: Very easy
Move easily on tired legs. Hiking is valid; stop if mechanics deteriorate.
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Week 14 Taper
8h 30m · 1,750 m vert
Mon · 2027-07-19 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-07-20 tempo
Short uphill reminder
1h 30m · 350 m vert · ~10.9 km
Effort: Strong, sustainable uphill effort
Start with 10 minutes easy. Then 5 x 3 minutes at a strong, sustainable uphill effort, walking back down between them. Finish with at least 10 minutes easy; any remaining time is easy.
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Wed · 2027-07-21 easy
Easy run
1h 20m · ~11.1 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Fri · 2027-07-23 easy
Easy run
1h 15m · ~10.4 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Sat · 2027-07-24 long
Long run
3h 10m · 1,100 m vert · ~19 km
Effort: Easy
Keep this comfortable and finish with plenty in reserve. Rehearse race fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach.
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Sun · 2027-07-25 recovery
Recovery run or hike
1h 15m · 300 m vert · ~7.5 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
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Week 15 Taper
6h 15m · 1,175 m vert
Mon · 2027-07-26 rest
Rest
Effort: Rest
Rest or gentle mobility.
Tue · 2027-07-27 tempo
Short uphill reminder
55 min · 200 m vert · ~6.7 km
Effort: Strong, sustainable uphill effort
Start with 10 minutes easy. Then 5 x 3 minutes at a strong, sustainable uphill effort, walking back down between them. Finish with at least 10 minutes easy; any remaining time is easy.
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Wed · 2027-07-28 easy
Easy run
1h 10m · ~9.7 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Fri · 2027-07-30 easy
Easy run
1h 05m · ~9 km
Effort: Easy
Conversational aerobic running. Keep easy days easy enough to support the key work.
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Sat · 2027-07-31 long
Long run
2h 10m · 775 m vert · ~12.8 km
Effort: Easy
Keep this comfortable and finish with plenty in reserve. Practise the fuel, hydration and kit you intend to use; treat amounts as rehearsal, not a universal prescription.
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Sun · 2027-08-01 recovery
Recovery run or hike
55 min · 200 m vert · ~5.6 km
Effort: Very easy
Keep this genuinely easy, or substitute an easy hike.
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Week 16 Taper
2h 00m · 0 m vert
Mon · 2027-08-02 easy
Easy run
1h 00m · ~8.3 km
Effort: Very easy
Keep this short and conversational. The goal is freshness, not fitness.
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Tue · 2027-08-03 easy
Easy pre-race run
40 min · ~5.5 km
Effort: Easy
Run conversationally. If already familiar, include a few relaxed strides with full recovery; otherwise stay easy.
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Wed · 2027-08-04 easy
Optional shakeout
20 min · ~2.8 km
Effort: Very easy
Rest, or jog very easily if that reliably helps you feel better.
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Thu · 2027-08-05 race-day
Race Day: KAT100 by UTMB 100 Miles
Effort: Race execution
Run the 169 km as planned: start controlled and use the fuelling and kit rehearsed in training. Fuelling: about 40 to 80 g of carbohydrate an hour from early on, 400 to 800 ml of fluid an hour depending on heat and sweat, and sodium with it (about 300 to 600 mg an hour). Use what you will carry on race day and adjust to your stomach. Afterwards: rest or walk for several days, then short easy runs only, with no hard running for three to four weeks, longer after a long mountain day.
Fri · 2027-08-06 recovery
Post-race recovery
Effort: Rest or very easy
Prioritize rest, food, fluids and gentle movement; do not schedule a workout by default.
Sat · 2027-08-07 recovery
Optional easy movement
Effort: Rest or very easy
Walk or move very easily only if it feels restorative. A return to running is individual.

Cutoff check

If your race has a time limit, this estimates the minimum average pace and whether your target finish time clears the cutoff.

Result
Min pace: 16.0 min/km

Exports

Use the personal subscription URL for a live saved plan. Calendar links regenerate from their parameters and may reflect updated race facts or engine fixes. A kept plan and its downloads remain unchanged.

Disclaimer: this plan is general information, not medical advice. Adjust based on fatigue, experience, and injury history.

About the KAT100 by UTMB 100 Miles course

At 169 km with 9,000 m of elevation gain, this is an ultra-distance effort that demands careful fueling, pacing, and mental resilience. At 53 m of vertical per kilometer, much of the course is runnable — the plan focuses on building your aerobic cruising speed while preparing you for the steeper sections. The official cutoff is 45 hours, so pace management starts from week one. This training plan adapts the 16-week structure specifically for 169 km with 9,000 m of elevation gain, scaling weekly volume and vert targets so your body is ready for race-day demands.

Ultra-distance trail races require a different approach to training than road marathons. Time on feet matters more than pace, and vertical accumulation is as important as distance. This schedule includes back-to-back long days in selected loading weeks to rehearse moving on tired legs. It also includes regular easier weeks.

Training phases for 100 Miles

The current 16-week schedule has these phases for 169 km and 9,000 m of climbing:

  • Weeks 1–6 — Base Building: Establish consistent aerobic training and introduce course-like terrain gradually.
  • Weeks 7–10 — Vert Accumulation: Increase course-specific climbing while rehearsing easy effort and fueling.
  • Weeks 11–13 — Peak Volume: Practise the longest planned outings and race equipment without adding extra sessions.
  • Weeks 14–15 — Taper: Reduce training load while retaining a small amount of familiar intensity.
  • Week 16 — Race week: Reduce training and follow the race-day plan.

Pacing a runnable course

At 53 m of vertical per kilometer, much of the KAT100 by UTMB 100 Miles course is runnable. Training should emphasise aerobic cruising speed — tempo runs on rolling terrain, sustained effort on moderate climbs, and efficient flat-to-uphill transitions. The biggest risk on a runnable course is starting too fast; practice negative-split long runs to build discipline.