Terms of Use

Use at your own risk

Predict Pace is provided as-is, without warranty of any kind, express or implied. Use of this tool is entirely at your own risk. We make no representations as to the accuracy, completeness, or suitability of any predictions for any purpose.

Not professional advice

Nothing on this site constitutes medical, health, or professional coaching advice. Predictions are statistical estimates based on published exercise science research — they are not a substitute for guidance from a qualified coach, physician, or sports medicine professional.

Running carries inherent physical risks. Before beginning or modifying a training program, consult a qualified healthcare provider, particularly if you have any medical conditions or concerns.

Accuracy of predictions

Marathon finish time projections are derived from Jack Daniels' VDOT method and the Vickers & Vertosick (2016) mileage-adjustment model. Course difficulty multipliers and weather adjustments are calibration estimates based on published research. Individual results vary significantly based on factors including training history, race-day conditions, nutrition, pacing strategy, and individual physiology. Predictions should be treated as informed estimates, not guarantees.

Affiliate links

Predict Pace participates in the Amazon Associates program. Product links on this site are affiliate links — we earn a small commission on qualifying purchases at no extra cost to you. Commissions do not influence which products are recommended; recommendations are based on relevance to the runner's projected fitness level. See our affiliate disclosure for full details.

No warranty

This service is provided without warranty of any kind. We do not guarantee uninterrupted availability, freedom from errors, or that the tool will meet your requirements. We are not liable for any direct, indirect, incidental, or consequential damages arising from your use of this site or reliance on any information it provides.

Changes to these terms

We may update these terms at any time. Continued use of the site after changes are posted constitutes acceptance of the revised terms. The date at the top of this page reflects the most recent update.

Contact

Questions about these terms can be directed to nonslip.covey_1h@icloud.com.