A training system that takes a position.

Know what to do today

Praxys combines recent training load, sleep, HRV, resting heart rate, and upcoming workouts into a simple recommendation: train as planned, modify the session, or prioritize recovery.

See how training is changing you

Weekly analysis explains your zone distribution, threshold trends, fitness-fatigue balance, and workout execution so you can see what is improving, what is stalling, and where training may need to change.

Follow a plan that can adapt

Praxys manages its own or explicitly adopted workouts in a rolling 14-day window and can respond to your current training and recovery state. You choose from the delivery options available to your account and remain in control of pausing, resuming, resolving conflicts, or leaving managed mode.

Know whether your goal is realistic

Race forecasts quantify the gap between your current evidence and target. Praxys supports road and trail races from 5K through 100 miles and clearly distinguishes stronger conclusions from estimates.

Check the science behind each conclusion

Metrics, formulas, and constants carry source citations. You can inspect how a result was calculated and choose among supported training theories rather than treating one opaque model as universal truth.

Works with your current training setup

Connect Garmin, Strava, COROS, and Oura to bring activity and recovery data together. Available delivery options appear in Settings for each account. Choose power, heart rate, or pace as your training base.

Science first. AI where it helps.

• Metrics and plans start with deterministic calculations and validation; AI does not create the underlying facts.
• AI helps interpret patterns, explain trade-offs, explore research, and adapt plans while sources and limitations remain visible.
• Core guidance continues without AI, and research results are never presented as medical or safety advice.