Terms of Service

Last Updated: November 2025

Agreement to Terms

By accessing and using PaceCalc Pro, you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use our service.

Service Description

PaceCalc Pro provides free running pace calculators, training zone calculators, and race prediction tools. All calculations are performed client-side in your browser.

Disclaimer of Warranties

Important Disclaimer:

PaceCalc Pro calculations are provided "AS-IS" for general guidance only. We make no warranties about the accuracy, reliability, or suitability of the calculations for your specific needs.

While we strive for accuracy using established formulas, race predictions and training recommendations are estimates based on mathematical models. Individual results may vary significantly based on:

  • Current fitness level and training history
  • Race conditions (weather, terrain, elevation)
  • Nutrition and hydration strategies
  • Injury status and recovery
  • Individual physiological differences

Medical Disclaimer

Consult a Physician:

Before beginning any training program or using training recommendations from PaceCalc Pro, consult with a qualified physician or healthcare provider, especially if you have any pre-existing health conditions.

PaceCalc Pro is not a substitute for professional medical advice, diagnosis, or treatment. Never disregard professional medical advice or delay seeking it because of information from this website.

Limitation of Liability

To the fullest extent permitted by law, PaceCalc Pro and its operators shall not be liable for any:

  • Injuries or health issues arising from training based on our calculations
  • Race performance outcomes or disappointments
  • Inaccuracies in calculations or predictions
  • Loss of data stored in your browser
  • Service interruptions or downtime
  • Any indirect, incidental, or consequential damages

Acceptable Use

You agree to use PaceCalc Pro only for lawful purposes. You may not:

  • Attempt to interfere with or disrupt the service
  • Use automated tools to scrape or download content
  • Reverse engineer or attempt to extract source code
  • Use the service to violate any applicable laws or regulations

Intellectual Property

The PaceCalc Pro website design, branding, and original content are protected by copyright. The calculation formulas used are based on publicly available sports science research (VDOT, Riegel, Cooper, etc.).

Third-Party Links

PaceCalc Pro may contain links to third-party websites. We are not responsible for the content, accuracy, or practices of those sites. Your use of third-party websites is at your own risk.

Changes to Terms

We reserve the right to modify these terms at any time. Changes will be posted on this page with an updated revision date. Continued use of the service after changes constitutes acceptance of the new terms.

Governing Law

These terms shall be governed by and construed in accordance with applicable laws, without regard to conflict of law provisions.

Contact

If you have questions about these terms, please contact us through the standard channels listed on our website.

Severability

If any provision of these terms is found to be unenforceable, the remaining provisions will continue in full force and effect.