Structured Training.
Adaptive Intelligence.
keysessions.ai is a training platform for advanced cyclists who want more than a workout list. It builds complete mesocycles using a deterministic periodization engine, adapts your plan after every session based on real performance data, and pairs it all with an AI coach that knows your numbers as well as you do.
Phase, focus, load trajectory, progression — planned with the same logic a professional coach applies. Executed with the precision only a structured system can deliver.
A system, not a workout generator.
Most training apps give you workouts. Some give you plans. keysessions.ai gives you a complete operating environment for your training — from mesocycle architecture down to today's intervals, with every decision connected to the one before and the one after.
Deterministic Periodization Engine
Your mesocycle isn't generated by a language model guessing what looks right. It's built by a structured algorithm that applies proven periodization principles to your specific profile — training phase, physiological focus, load trajectory, progression rate, weekly time budget. Every session exists for a reason. Every week builds on the last. The logic is deterministic, testable, and transparent.
Adaptive Session Logic
After every session, you log real data — power, duration, TSS, RPE. The system evaluates your execution against the plan, calculates your readiness state, and adjusts what comes next. If you underperformed, it protects you. If you overdelivered, it recalibrates. Load, intensity, and recovery respond to what actually happened — not to what was assumed.
AI Coach
The AI doesn't plan your training — the periodization engine does. What the AI does is interpret it. A dedicated coach with full visibility of your data delivers a contextual briefing every time you open the dashboard: where you are in the block, how your readiness looks, what today's session demands, and what to pay attention to. When you have questions, it answers with data — not generic advice.
Strength Integration
Gym sessions aren't bolted on as an afterthought. They're scheduled within your mesocycle structure, sequenced around your cycling load, and their systemic fatigue is factored into readiness and recovery calculations. Your legs know when you've squatted — your training plan should too.
Plan. Do. Review. Adjust.
This is not a tagline. It's the structural backbone of the entire platform.
the loop repeats — every block, every week, every session
Every mesocycle follows a single continuous loop. You plan the block. You execute each session. You review real performance data. The system adjusts what comes next — within the session, within the week, within the block.
The output of every completed session becomes the input that drives the next one. Progression isn't a setting you toggle — it's a consequence of the data you produce and the logic that processes it.
Built for cyclists who train with intent.
keysessions.ai is currently in development. We're onboarding a limited number of athletes for early access — riders who take their training seriously and want a platform that does the same.