Legal

Terms of Use

Last updated: November 9, 2026. These terms are not legal advice.

1. Acceptance Of These Terms

By accessing or using RunningOptimization, including the website, the Workout Analyzer, free guides and any newsletter, you agree to these Terms of Use. If you do not agree, please do not use the service.

RunningOptimization is currently operated by an individual based in Slovenia (operator: Matej Zatler) and is not operated through a registered company.

2. Educational And Informational Purpose

All content, guides, training plans, workout analyses and recommendations provided by RunningOptimization are for general educational and informational purposes only.

3. Not Medical Advice

RunningOptimization does not provide medical advice, diagnosis or treatment. Nothing on the service replaces advice from a doctor or another appropriately qualified professional.

Heart-rate and other physiological figures shown by the service are training estimates based on the data you enter. They are not clinical measurements and must not be used to assess a medical condition.

4. Your Responsibility

You are responsible for your own training decisions, for training within your abilities, and for the accuracy of the information you enter.

If you have a medical condition, are returning from injury or illness, are pregnant, or are unsure whether exercise is safe for you, consult a qualified professional before starting or changing a training programme.

5. Exercise And Training Risks

Running and other physical exercise carry inherent risks, including injury, illness and, in rare cases, serious harm. You participate in any training at your own risk.

Stop exercising and seek medical help if you experience chest pain, dizziness, unusual shortness of breath, fainting or other concerning symptoms.

6. Limitations Of AI-Generated Analysis

The Workout Analyzer combines rule-based calculations with AI-generated explanations. The analysis is based only on the data you provide and may be incomplete, inaccurate or unsuitable for your situation.

Results depend on the quality of the data entered. Missing or inaccurate data reduces the reliability of the analysis.

7. No Guarantee Of Results

RunningOptimization does not guarantee any improvement in performance, race times, fitness or health. Results depend on many factors, including your starting point, consistency, recovery and individual circumstances.

8. Accounts And Account Security

Some features, such as saving workout history, require an account. You must provide a valid email address and keep your login credentials confidential.

You are responsible for activity that occurs under your account. Notify us promptly if you believe your account has been accessed without permission.

9. Acceptable Use

You agree not to misuse the service, including by attempting to gain unauthorised access to systems or other users' data, interfering with the service's operation, submitting automated or abusive requests, or using the service for any unlawful purpose.

10. Intellectual Property

The RunningOptimization name, logo, website content, guides and training plans are protected by intellectual property rights. Free guides are provided for your personal, non-commercial use and may not be resold or redistributed without permission.

You keep ownership of the workout data you enter. You allow RunningOptimization to process it solely to provide the service, as described in the Privacy Policy.

11. Third-Party Services

RunningOptimization relies on third-party providers for hosting, authentication, data storage, AI processing and email delivery. Links to external websites (such as Instagram) are provided for convenience; we are not responsible for third-party content or practices.

12. Service Availability

The service is provided on an "as is" and "as available" basis. We do not guarantee that it will be uninterrupted, error-free or always available.

13. Limitation Of Liability

To the fullest extent permitted by applicable law, RunningOptimization and its operator are not liable for any indirect, incidental or consequential loss, or for any injury or damage arising from your use of, or reliance on, the service or its content.

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including mandatory consumer-protection rights.

14. Changes To The Service

We may add, change, suspend or discontinue features of the service at any time, including features that are currently free.

15. Changes To These Terms

We may update these Terms as the service develops. The current version will always be available on this page with its revision date. Continued use after an update means you accept the revised Terms.

16. Termination

You may stop using the service at any time. You can delete your account at any time from your dashboard; deletion permanently removes your saved workouts, splits and analyses.

We may suspend or close accounts that breach these Terms or misuse the service.

17. Governing Law And Jurisdiction

These Terms are governed by the laws of the Republic of Slovenia, and the courts of the Republic of Slovenia have jurisdiction over disputes arising from them, without prejudice to mandatory consumer-protection rules of your country of residence.

18. Contact

Questions about these Terms: Reach us on Instagram at @runningoptimization. A dedicated contact email address is being set up and will be published here. See also our Privacy Policy.