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Terms of Use

Last updated: June 5, 2026

1. Agreement to these terms

By accessing or using EnduranceBlurb.com (the "Site") or any calculator or feature it provides (the "Service"), you agree to be bound by these Terms of Use ("Terms"). The Service is operated by Hexoglyph Holdings, LLC, a Utah limited liability company ("EnduranceBlurb," "we," "us," or "our").

If you do not agree to these Terms, do not use the Service. These Terms, together with our Privacy Policy, form the entire agreement between you and EnduranceBlurb regarding the Service.

Eligibility

You must be at least 18 years old to create an account or use Pro features. By using the Service, you represent that you meet this requirement and that the information you provide is accurate and current.

2. Medical and health disclaimer

The Service provides fitness and nutrition calculators for general educational and informational purposes only. It is not intended to be, and must not be construed as, medical advice, medical diagnosis, medical treatment, or a substitute for professional medical, nutritional, or training guidance.

Calculator outputs are estimates derived from published scientific formulas and population averages. Your individual physiology, fitness level, health conditions, medications, and circumstances will cause your actual results to vary, potentially significantly, from any estimate provided.

Specifically, the Service does not account for:

  • Individual allergies, intolerances, or dietary restrictions
  • Medication interactions or contraindications
  • Underlying medical conditions, including cardiac conditions
  • Pregnancy or other special physiological states
  • Injury, surgery recovery, or physical limitations

Never disregard professional medical advice, delay seeking it, or discontinue prescribed treatment because of information or outputs from the Service. Always consult a qualified healthcare professional, sports dietitian, or certified coach before making significant changes to your training, supplementation, or hydration protocol, particularly if you have any existing health conditions.

By using the Service, you expressly acknowledge and assume all risks associated with athletic training, competition, and the use of any recommendations or estimates provided.

3. Accounts

Some features require a free account. When you create an account, you agree to:

  • Provide accurate and current information
  • Maintain only one account
  • Keep access to your email account secure, as sign-in is by emailed link
  • Notify us promptly of any suspected unauthorized use of your account

You are responsible for all activity that occurs under your account. We are not liable for losses arising from unauthorized use of your account if you fail to keep your access credentials secure.

Accounts are personal and non-transferable. You may not share, sell, or transfer your account to another person.

4. Subscriptions and payments

Pro features

Certain features (such as printable race-day cards and CSV exports) require a Pro unlock, which is a one-time purchase processed by Stripe. We do not store your payment card details.

Introductory access

During an introductory period, all signed-in users receive full access to Pro features at no charge. We will provide notice before ending this period and requiring payment for Pro access.

Billing and refunds

All fees are stated in US dollars. Transactions are final. If a charge is made in error, contact us at cameron@enduranceblurb.com and we will work with you to resolve it. We reserve the right to correct billing errors and, where required by applicable law, to process refunds.

EU and UK residents

If you are located in the European Union or the United Kingdom, you may have a 14-day right to withdraw from a digital purchase under applicable consumer protection law, except where you have expressly agreed to immediate access to digital content, waiving the withdrawal right.

5. Affiliate disclosures

EnduranceBlurb is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Product links on the Site may be affiliate links. If you click an affiliate link and make a qualifying purchase, we may receive a commission at no additional cost to you.

These disclosures are made in accordance with the FTC Endorsement Guides. Affiliate relationships do not influence editorial recommendations. We only link to products we believe have genuine value for endurance athletes.

6. Intellectual property

Our content

The Site and its content, including text, design, graphics, calculators, code, and logos, are owned by or licensed to Hexoglyph Holdings, LLC and are protected by copyright, trademark, and other intellectual property laws. You may not copy, modify, distribute, sell, or create derivative works from any part of the Service without our written permission.

You may not reverse-engineer, decompile, disassemble, or attempt to derive the source code of any software component of the Service.

Your content

You retain ownership of plans, recipes, and other content you create using the Service. By saving content on our servers, you grant us a limited, non-exclusive, royalty-free license to store, display, and process that content solely to provide the Service to you.

We do not use your saved plans or calculator results for advertising, training AI models, or any commercial purpose beyond providing the Service.

7. Prohibited conduct

You agree not to:

  • Use the Service for any unlawful purpose or in violation of any applicable law
  • Access or attempt to access any part of the Service through automated means (bots, scrapers, crawlers) without prior written permission
  • Circumvent, disable, or interfere with security features of the Site
  • Upload, post, or transmit malware, viruses, or other harmful code
  • Attempt to gain unauthorized access to any account, system, or network connected to the Service
  • Impersonate any person or entity, or falsely represent your affiliation with any person or entity
  • Collect or harvest personal information of other users without their consent
  • Commercially resell, sublicense, or otherwise exploit access to the Service without our permission
  • Interfere with or disrupt the Service or servers or networks connected to the Service

We reserve the right to investigate suspected violations and to take any action we deem appropriate, including suspending or terminating your account.

8. Third-party services

The Service integrates with third-party services including Strava, Stripe, Google, and Amazon. These services are governed by their own terms and privacy policies. We are not responsible for the conduct, data practices, availability, or accuracy of any third-party service. You use third-party integrations at your own risk.

The Site may also contain links to external websites. We are not responsible for the content or privacy practices of those sites.

9. Disclaimer of warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, ENDURANCEBLURB DISCLAIMS ALL WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

We do not warrant that:

  • The Service will meet your requirements or expectations
  • The Service will be uninterrupted, timely, secure, or error-free
  • Calculator results will be accurate, complete, or suitable for your situation
  • Any errors will be corrected

Jurisdictions that do not allow the exclusion of implied warranties may not permit some of the exclusions above, in which case they apply only to the extent permitted by law.

10. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL 902 SPORTS LLC, ITS OFFICERS, DIRECTORS, EMPLOYEES, OR AGENTS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, LOSS OF DATA, PERSONAL INJURY, PROPERTY DAMAGE, OR BUSINESS INTERRUPTION, ARISING FROM OR RELATED TO YOUR USE OF THE SERVICE, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

OUR TOTAL CUMULATIVE LIABILITY TO YOU FOR ALL CLAIMS ARISING FROM OR RELATING TO THE SERVICE IS LIMITED TO THE GREATER OF: (A) $50 USD, OR (B) THE TOTAL AMOUNTS YOU PAID TO US IN THE 12 MONTHS IMMEDIATELY PRECEDING THE CLAIM.

Some jurisdictions do not allow the exclusion or limitation of certain damages, so the limitations above may not apply to you to the full extent stated.

11. Termination

You may delete your account at any time by contacting us. We may suspend or terminate your access to the Service at any time, with or without notice, for any reason, including if we believe you have violated these Terms.

Upon termination, your right to use the Service immediately ceases. Sections 2, 6, 9, 10, 12, and 13 survive termination.

12. Governing law and dispute resolution

Governing law

These Terms are governed by the laws of the State of Utah, United States, without regard to conflict of law principles.

Informal resolution

Before initiating formal proceedings, you agree to contact us at cameron@enduranceblurb.com and attempt to resolve the dispute informally. We will try to respond within 30 days. Most concerns can be resolved this way.

Arbitration

If informal resolution fails, any dispute, claim, or controversy arising from or relating to these Terms or the Service (including questions about their scope or applicability) shall be resolved by binding individual arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules. Arbitration shall take place in Davis County, Utah, or at a mutually agreed location. The arbitrator's decision shall be final and binding.

Class action waiver: You agree to resolve any dispute in your individual capacity only, and not as a plaintiff or class member in any purported class, collective, or representative action. The arbitrator may not consolidate claims of more than one person.

This arbitration clause does not apply to: (a) claims that qualify for small claims court, (b) claims for injunctive relief related to intellectual property infringement, or (c) users located in the EU or UK where mandatory arbitration is prohibited by applicable law.

EU and UK users

If you are located in the European Union or the United Kingdom, nothing in these Terms affects your rights under mandatory local consumer protection laws. You may bring claims in the courts of your country of residence.

13. Changes to these terms

We may update these Terms as the Service evolves. We will indicate the date of the most recent update at the top of this page. For material changes, we will provide notice via email (if you have an account) or via a prominent notice on the Site. Your continued use of the Service after the effective date of updated Terms constitutes your acceptance of those changes.

14. General provisions

Severability

If any provision of these Terms is held to be invalid or unenforceable, that provision shall be modified to the minimum extent necessary to make it enforceable, or if not possible, severed. The remaining provisions shall continue in full force and effect.

No waiver

Our failure to enforce any right or provision of these Terms shall not constitute a waiver of that right or provision.

Entire agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and EnduranceBlurb regarding the Service and supersede all prior agreements and understandings.

15. Contact

Questions about these Terms can be sent to: