How to use
- Enter the inputs.
- Sanity-check the outputs.
- Use the result as a planning anchor, not a promise.
Jump to
Tool
Inputs → outputs
This page is intentionally practical: get numbers first, then read the how-to.
Inputs
- • Plan length (weeks)
- • Race date (YYYY-MM-DD) (optional)
Outputs
- • Printable PDF
- • Editable CSV (spreadsheet)
- • Recommended start date
Export
Print or share the tool
Useful outputs beat generic SEO copy. Print a PDF or share this page before race week.
Tip: print or save as PDF for race week.
Example presets
Prefill with a realistic scenario
Pick an example to prefill the calculator, then tweak inputs for your own training week.
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Quick answers
The 60-second version
Snippet-ready answers to common questions. Use the calculator above for the numbers.
Is a 12-week 70.3 plan enough?
Only if you already have a strong base in all three sports. Most athletes do better with 16–24 weeks so long rides and bricks are repeatable.
Do I need bricks every week?
Often one controlled brick per week in build/peak is enough. Bricks are rehearsal, not weekly races.
Is this free?
Yes — download the PDF/CSV and use it as a planning map. The app adds adaptation and decision support when life happens.
Assumptions
What this tool assumes
- • This is a week-by-week plan summary (not a day-by-day calendar).
- • You’ll need to practice fueling and transitions on bricks — execution is the sport.
Limitations
What can break it
- • Does not replace professional medical or injury guidance.
- • If you’re truly starting from scratch in swim/bike/run, choose a longer plan and build consistency first.
Related
Use this with a plan
Coaching beta
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Join the 26weeks.ai TestFlight beta for adaptive coaching, recovery-aware adjustments, and race-week reminders.
FAQs
Is a 12-week 70.3 plan enough?
Only if you already have a strong base in all three sports. Most athletes do better with 16–24 weeks so long rides and bricks are repeatable.
Do I need bricks every week?
Often one controlled brick per week in build/peak is enough. Bricks are rehearsal, not weekly races.
Is this free?
Yes — download the PDF/CSV and use it as a planning map. The app adds adaptation and decision support when life happens.
Keep going
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