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Keep your plan synced across every device.
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Your plan syncs across your devices and stays private to your account.
Keep your plan synced across every device.
Already have an account?
Your plan syncs across your devices and stays private to your account.
We've sent a confirmation link to . Click it to verify your account — no rush, you can keep using Trivium either way.
Your account is ready. One more thing makes the plan itself better: connecting Strava lets Trivium see what you actually did, not just what was scheduled. Missed or cut-short sessions get accounted for automatically, paces and effort are grounded in your real fitness instead of a guess, and the week ahead quietly adjusts instead of running on autopilot.
Last updated: June 25, 2026
By creating an account, you agree to these Terms of Service ("Terms"). Please read them carefully. If you do not agree, do not create an account.
Trivium Training ("Trivium" or "Service") is a personal triathlon training planner. It helps you create, follow, and adapt training plans for triathlon events, sprint through full Ironman. The Service may optionally connect to your Strava account to incorporate your activity data.
You must be at least 13 years old to use this Service. By creating an account, you confirm that you meet this requirement.
You agree not to misuse the Service. You may not:
The Service provides training plans and general fitness information for educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting a new training program. The Service's operators assume no liability for injury, illness, or other harm resulting from use of any training plan or recommendation.
The Service may integrate with Strava. Your use of Strava is subject to Strava's Terms of Service. We are not responsible for Strava's availability or conduct.
The Service and its content (excluding your data) are owned by Julien Mann. You may not copy, modify, or distribute any part of the Service without prior written permission.
You may delete your account at any time. We reserve the right to suspend or terminate accounts that violate these Terms. Upon termination, your stored plan data will be deleted.
To the fullest extent permitted by law, the Service is provided "as is" without warranties of any kind. In no event shall Julien Mann be liable for any indirect, incidental, or consequential damages arising from your use of the Service.
We may update these Terms from time to time. Continued use of the Service after changes constitutes acceptance of the updated Terms.
Questions about these Terms? Email julesthemann@gmail.com.
Last updated: June 25, 2026
This Privacy Policy explains what information Trivium Training ("Trivium" or "Service") collects, how it is used, and your choices. Your privacy matters. We collect only what is necessary to provide the Service.
Account information: Your email address and a hashed password, used solely to authenticate you and keep your plan private.
Training plan data: The plans you create or generate are stored in your browser's local storage and, when logged in, associated with your account on our server. This includes race dates, weekly templates, and AI-generated plan content.
Strava data (optional): If you choose to connect Strava, we receive read-only access to your activity history (distance, pace, heart rate, and similar metrics). We use this data only to adapt your training plan. We do not sell or share your Strava data. You can disconnect Strava from your account at any time.
Usage data: We may log anonymized technical information (browser type, errors) to maintain the Service. We do not use third-party analytics trackers.
When you use AI plan generation, your training preferences and goals are sent to a secure server-side proxy (Cloudflare Worker) which forwards them to an AI model (Anthropic Claude). Your email address is never included in AI requests. AI providers may retain requests for safety and quality purposes per their own privacy policies.
We do not sell your personal information. We do not share your data with third parties except:
Your account and training data are retained until you delete your account. To delete your account and all associated data, email julesthemann@gmail.com. We will process deletion requests within 30 days.
We use industry-standard security practices: passwords are hashed and never stored in plain text, connections are encrypted over HTTPS, and secrets are stored server-side only.
Depending on your location, you may have the right to access, correct, or delete your personal data. To exercise any of these rights, contact us at the email below.
The Service is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with their information, contact us and we will delete it.
We may update this Privacy Policy. We will notify you of significant changes by email or by a notice in the Service.
Privacy questions or requests? Email julesthemann@gmail.com.