Strava-native · AI coach
A real Strava AI coach.
What you get
- Sunday-night weekly review.A structured AI-written read of the past seven days — what worked, what’s concerning, and the next 1–4 week plan — with cited numbers from your Strava history.
- Conversational coach.Ask “why was today hard?” at 11pm and get a grounded answer that references your CTL, last week’s quality session, and today’s TSB.
- Prescribed workouts.Concrete sessions with watts, HR, pace, RPE, and feel cues — not just “Zone 2 run”.
- Multi-sport modeling. If you train two or three sports, ZoneTwo combines load across them and catches cross-sport overload before injury.
- Transparent math. Coggan TSS for power, Friel rTSS for running pace, Foster monotony, classical CTL/ATL/TSB. Every number the AI cites is visible on your dashboard.
- No training plan to start. The coach learns your current fitness from your last 60 days of Strava activity. No onboarding questionnaire, no race goal required upfront.
Why Strava alone isn't coaching
Strava is the best logging, social, and mapping platform in endurance sport. It is not — and does not claim to be — a coach. The fitness curve it shows is a display; the weekly narration is a summary. Neither tells you what to change, when to back off, or how the next four weeks should look.
That’s the gap a Strava AI coach fills. You need three things coaching requires: a reading of the past, a plan for the future, and a conversationwhen reality doesn’t match the plan. Strava supplies none of these. ZoneTwo is built to supply all three — with Strava as the data source, not the decision-maker.
How the AI stays honest
AI coaching is only useful if you trust what it says. Three design choices keep the output grounded:
- Deterministic rule engine first. Every Sunday we run explicit checks — acute load spikes, prolonged negative TSB, high monotony, cross-sport overload — before any LLM call. Flags that fire become mandatory context the coach must respond to.
- Structured JSON output.The AI returns weekly reviews as a strict schema, not free-form prose. Every section has a purpose: what happened, what’s concerning, what to change, prescribed workouts, safety notes.
- Citation discipline. Numbers in the output must match numbers from your dashboard. The coach cites your actual CTL, actual TSS, actual sessions — never invented figures.
- Conservative bias.When uncertain, the prompt instructs the coach to recommend recovery over load. The product is “no weekly review” before “wrong weekly review”.
Common questions
FAQHow is this different from Strava's Athlete Intelligence?
Athlete Intelligence writes a short narration of each activity and a generic weekly summary. A Strava AI coach — what ZoneTwo does — writes a structured weekly review with cited numbers, prescribes concrete next workouts (watts, pace, RPE), and answers conversational questions about your training grounded in your specific history.
Does ZoneTwo need Strava Premium?
No. A free Strava account has everything the coach needs: your activities and their underlying data. Strava Premium adds social and mapping features that ZoneTwo doesn't touch. Many athletes run both: Premium for heatmaps and segments, ZoneTwo for coaching.
What does 'Strava-native' actually mean?
It means the coach reads directly from your Strava activities — no manual workout logging, no separate app to track sessions. Every run, ride, or swim you upload becomes context the AI uses in the next review and chat response. Setup is a single OAuth connection; there's nothing else to configure.
How fast can I have a coach reading my data?
Under a minute. Click Connect Strava, authorize, and we pull your last 60 days. A training dashboard is ready within two minutes; a full weekly review arrives at the next Sunday cron, or you can trigger one immediately after the initial sync. No onboarding questionnaire, no paperwork.
Which sports does the coach support?
Running, cycling (road, gravel, indoor trainer, virtual), swimming, and triathlon. For multi-sport athletes we model combined load across disciplines — shared fatigue, cross-sport monotony, injury risk. This is the feature most other Strava-integrated tools miss.
Keep exploring
Connect Strava. Meet your coach.
60-second setup. Free during beta. No onboarding questionnaire.