Terms of Service

1. What EnduranceOS Is

EnduranceOS is a free, educational tool that generates personalized race-day nutrition plans for endurance athletes. Plans are based on published sports science, user-provided inputs, and estimated environmental conditions. EnduranceOS also provides a race directory with aggregated race details, historical weather data, and nutrition guidance for specific events.

2. Not Medical or Professional Advice

• Always consult a physician before making changes to your nutrition strategy, especially if you have a medical condition or are taking medication.
• Always consult a registered dietitian or sports nutritionist for personalized nutrition guidance.
• Do not rely solely on EnduranceOS output for race-day decisions without practicing your nutrition strategy in training.

3. Assumption of Risk

Endurance sports carry inherent risks including but not limited to dehydration, hyponatremia (over-hydration), gastrointestinal distress, heat illness, and other medical emergencies.

By using this Service, you acknowledge that:

• You are responsible for testing any nutrition plan during training before using it in competition.
• Weather estimates, sweat rate calculations, and caloric expenditure are approximations, not guarantees.
• Individual responses to nutrition vary significantly.
• You assume full responsibility for your own health and safety during training and competition.

4. No Warranties

EnduranceOS is provided “as is” without warranties of any kind, express or implied. We do not guarantee that plans will be accurate for your individual physiology, that weather data will reflect actual race-day conditions, that the Service will be available without interruption, or that calculations are free from errors.

5. Race Directory & Third-Party Data

Race pages display information aggregated from third-party sources including RunSignUp, World Triathlon, and Open-Meteo. While we make reasonable efforts to keep this data accurate and current:

• Race details (dates, locations, registration status) may be outdated or incorrect.
• Weather data is based on historical averages and does not predict actual race-day conditions.
• Fueling suggestions on race pages are general guidance based on published research, not personalized advice.
• Always verify race details on the official race website before making travel, registration, or training decisions.

6. Affiliate Links

Some race pages include registration links that contain affiliate tracking parameters. If you register for a race through one of these links, EnduranceOS may receive a small commission at no additional cost to you. Affiliate relationships do not influence which races appear in our directory or how they are presented.

7. Limitation of Liability

To the maximum extent permitted by law, EnduranceOS and its creators shall not be liable for any direct, indirect, incidental, consequential, or special damages arising from your use of the Service, including but not limited to poor race performance, health complications, or any injury sustained during training or competition.

8. Your Responsibilities

• Provide accurate information about your body weight, race details, and experience level.
• Test your nutrition strategy in training before race day.
• Use your own judgment and listen to your body during competition.
• Do not use the Service for any unlawful purpose.

9. Intellectual Property

All content, formulas, designs, and code comprising EnduranceOS are the property of EnduranceOS. You may use generated plans for personal, non-commercial purposes. You may not copy, reproduce, or redistribute the Service itself.

10. Changes to These Terms

We may update these terms at any time. Changes will be reflected by the “Last Updated” date. Continued use of the Service after changes constitutes acceptance of the updated terms.

11. Contact

Questions about these terms? Email hello@enduranceos.app.