Terms of Service
Plain-English terms for using PaceLab's calculators.
Using the site
PaceLab (paceslab.com) is free to use. There is no account to create and no payment to make. By using the calculators, charts or any other page on this site, you agree to these terms.
Not professional advice
The pace, finish time, split and prediction figures on this site are calculated from the numbers you enter using standard running math (and, for the race time predictor, Riegel's published formula). They are estimates for training and planning, not medical, coaching or other professional advice. Talk to a doctor or coach before starting a new training plan, especially if you have an existing health condition.
No warranty
We test the calculators and keep the math transparent, but PaceLab is provided "as is" without any warranty of any kind. We do not guarantee the site will be error-free, available at all times, or fit for any particular purpose, and we are not liable for decisions made from the numbers it produces.
Advertising
PaceLab may display advertising from third-party ad networks to help keep the calculators free to use. Ads are served under the terms of those networks. See the privacy policy for how ads and cookies work on this site.
Acceptable use
Do not use automated tools to overload the site, attempt to disrupt or interfere with the service, or scrape it for large-scale republishing elsewhere. The calculators are for personal, non-commercial use unless you have separate written permission.
Changes
These terms may be updated as the site evolves, for example when advertising or new tools are added. The version published here is always the current one. Questions? Reach us through the contact form.
Last updated: July 2026.