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Free training tool

100K training plan PDF

Download a free 100K training plan PDF (and CSV): optionally add a race date, then get a printable week-by-week time-on-feet summary you can edit in a spreadsheet.

Updated Jul 27, 2026

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Example presets

Prefill with a realistic scenario

Pick an example to prefill the calculator, then tweak inputs for your own training week.

Tool

What you enter and what you get

Enter a few details to get your result. The guide below explains how to use it.

You enter

  • Plan length (weeks)
  • Race date (YYYY-MM-DD) (optional)

You get

  • Printable PDF
  • Editable CSV (spreadsheet)
  • Recommended start date

Use the PDF as a schedule draft, not a fixed prescription

A 100K training-plan PDF is most useful when it turns a race date into a visible sequence of base work, long-run specificity, recovery, and taper. Downloading the file does not establish readiness. Before choosing a start week, record your recent repeatable volume, longest recent outing, trail and climbing access, injury or illness context, and the days that can reliably hold longer work.

Audit the plan against your course

Course demandCurrent evidencePlan adjustment to consider
Climbing and descendingrecent comparable vert and next-day functionadd gradual terrain practice, not a sudden vert spike
Technical trailstable movement on similar surfaceuse safe skill exposure before fatigue
Long hoursrepeatable long-run durationextend gradually while protecting the next week
Darknesstested lighting and movementadd a bounded night rehearsal
Aid and drop bagscurrent organizer rulespractise the verified checkpoint system

Do not copy another athlete's weekly distance into the spreadsheet. Mark every session as essential, supportive, or optional. When travel, illness, pain, or life load removes capacity, drop optional work before stacking missed sessions.

Make the spreadsheet adaptive

Each week, record completed duration, terrain, perceived effort, sleep opportunity, symptoms, fueling practice, and next-day function. Change one major load variable at a time. A back-to-back weekend can be useful specificity, but it is not mandatory proof of toughness and should not leave normal movement impaired for several days.

Use the ultra training hub for plan-length options, the ultra cutoff planner for checkpoint arithmetic, and the 100K drop-bag plan for race-specific logistics.

Safety boundary

Stop and seek qualified care for chest pain, fainting, confusion, severe breathing difficulty, or pain that changes normal movement. The PDF is educational and not medical advice, a diagnosis, or a guarantee of finishing.

Assumptions

What this tool assumes

  • This is a week-by-week plan summary (not a day-by-day calendar).
  • Cutoff pacing is a skill; practice fueling and hiking early.

Limitations

When this estimate may be less reliable

  • Does not account for your specific course profile or mandatory gear rules.
  • Segment cutoffs vary by race; verify rules on the official site.

Adaptive AI coach for iPhone

Meet your adaptive AI coach.

Tell your coach what you are training for. It builds the plan, follows the work you complete, and adapts upcoming training when recovery, your schedule, or real life changes.

FAQs

How should I choose a 100K plan start week?

Work backward from the event, then confirm the first weeks match training you can already repeat. Add runway rather than skipping directly into peak long runs.

Do I need back-to-back long runs every week?

No. Use them selectively when they add course-specific durability and recovery remains stable. They are one tool, not a universal requirement.

Should I follow the PDF after missing a week?

Do not repay every missed session. Resume from current capacity, protect essential work, and revise the goal or timeline when the disruption changes readiness.

Can the plan predict whether I will finish?

No. Completion also depends on health, course, conditions, pacing, nutrition, rules, equipment, and race-day decisions.

Keep going

Sources