Support

Support & Feedback

Need help with marathoncalc.com? I'm the solo maintainer and will reply personally.

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Translation notice

This agreement is provided in multiple languages for convenience. If any translation differs from the English version, the English text will prevail.

English version prevails

Thanks for using marathoncalc.com. I build this tool for runners and prioritize changes based on real feedback. Email is the best way to reach me.

Start here

Email

Write to support@marathoncalc.com with your question or idea. Links or screenshots are welcome.

Response time

I usually reply within 24-48 hours and often faster on weekdays.

Languages

Feel free to write in English or Chinese. Replies default to English to avoid translation mistakes.

Reporting a bug

Please include:

  • Device and browser (e.g., iPhone 14 on Safari, Chrome on Windows).
  • Steps to reproduce the issue.
  • What you expected versus what actually happened.
  • Screenshots or copied error messages if available.

Privacy note

I do not collect diagnostic logs automatically. Only share information you are comfortable sending over email.

Suggesting a feature

Share the context

Tell me the scenario or training need you are solving so I can design the right workflow.

Helpful examples

  • A preset distance or unit you use often.
  • Export/share flows you need (screenshots, CSV, copy text).
  • Any accessibility needs (contrast, keyboard use, screen readers).

What happens next

Triage

I group messages by severity and runner impact, then ship fixes before new features.

Status updates

If I accept a request, I will confirm by email and let you know when it ships or if I need more detail.

Talk to me

Email support@marathoncalc.com. I check the inbox daily and prioritize anything that blocks you from using the calculator.

support@marathoncalc.com