Privacy Policy

Who runs this site

This site is run by Thomas Van Durme, trading as Slow Run Fast, based in Belgium. If you have a question about your data or this policy, email hello@slowrunfast.com.

What we collect

The only personal data this site collects is the email address you type into the waitlist form. We use it for one purpose only: to email you when account sign-up opens. We never sell this email address and never share it with anyone except the processor named below that delivers the email to us.

Calculator inputs

All calculators on this site run entirely in your browser. The numbers you type into them are never sent to our server.

The Course Pace Planner is the one exception, and only for two things it does by design. The GPX course file you upload is parsed entirely in your browser and never leaves it. But if you click "Get forecast," the planner sends your course's rounded start coordinates and race date to Open-Meteo to fetch a weather forecast, and the course map on that page loads map tiles from CARTO, which sees the map area you're viewing (and your IP address, as any map tile request does). Neither of these happens until you open that calculator, and the forecast fetch only happens if you click the button.

Some calculators save the last values you enter in your browser's local storage, so they can prefill the same field the next time you open that calculator. This stays on your device: it is never sent to our server or anywhere else, and you can clear it at any time with the "Clear" link next to the prefilled result.

Some calculators let you share a result as a link. That link encodes your inputs in its URL, so they are only visible to whoever you choose to send that link to.

Processors

We use four outside services to run this site:

• Web3Forms receives the email address you submit on the waitlist form and delivers it to us by email.
• Vercel hosts this site and provides Vercel Web Analytics, which is cookieless and does not record anything you type into a calculator.
• Open-Meteo receives the rounded start coordinates and date of a course when you click "Get forecast" on the Course Pace Planner, and returns a weather forecast. See their terms and privacy policy.
• CARTO serves the map tiles for the Course Pace Planner's course map, and sees the map area you view (and your IP address). See their privacy notice and basemap terms.

Your rights

You can ask us what email address we hold for you, or ask us to delete it, at any time. Email hello@slowrunfast.com and we will act on it.

Cookies

This site does not set tracking cookies.