Race season planner

Browse mapped races Search with filters

Do your races work together? Every verdict comes from the course facts and from how much of one race's preparation carries over to the next. Nothing is saved unless you keep it in your account: your season lives in this page's address.

Your running: 45 km/week · 22 km longest · 5 days · mixed terrain · some experience

Your race has the preparation it needs.

Sep 26 NovDecJan 27FebMar
off-season basebuildingtaperracerecovery
Not building
30%
Longest build
14 wk
Racing descent
1.5k m
Off-season
4 wk

Arc of Attrition by UTMB Arc 50K

Works

· 49 km, +1,458 m · 6.2–8.6 h on your feet · 3 wk easy running after

30 m of climb per km — steep enough that most runners hike the longer climbs.

Course, cutoffs and race-day guide

There is time for a full build before this one.

The 16 weeks before it — a full build Enough

the dark row marks weeks with real climbing in them

14 wk building for this race
13.5 wk is a full build for you (shorter than the generic 16 weeks because you already run 45 km a week, well above the 25 km this distance assumes)
2 wk tapering, racing or recovering — building nothing
weeks with climbing: 14, the number this course asks for

Your training

24 weeks, starting this week
What do I do today?

Calendar

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

Keep this season in your account

Then one calendar follows every change you save to your settings, a pause included, and the season opens on your other devices. Without an account the season is this address: its calendar follows race dates, but a change to your settings needs a new link.

This week · Arc of Attrition by UTMB Arc 50K — base building 1 of 14

5h of running · 425 m of climbing

  • Tue Easy hills + uphill strides 50m +150 m · Easy; strides strong but relaxed
  • Tue Strength (optional) 30m · Moderate: controlled reps, stop 1–2 short of failure
  • Wed Easy run 45m · Easy
  • Fri Easy run 40m · Easy
  • Sat Long run 2h 5m +225 m · Easy
  • Sun Recovery run or hike 40m +50 m · Very easy

Next week: Arc of Attrition by UTMB Arc 50K — base building 2 of 14 · 5h 15m

One coherent season: each demanding race gets its own build, taper and recovery; shorter races are placed inside a build. Recovery spacing and carry-over are reviewed product conventions calibrated against our reference plans, not physiological measurements. Planning guidance from course facts and your stated training — not medical or coaching advice. Recovery spacing, how much preparation carries over, and how many climbing weeks a course asks for are our own reviewed conventions — inspectable, and not measurements of your physiology.