AI Endurance Coaching

A coach in your pocket. Built for every athlete.

Corsa creates a personalized weekly training plan for running, cycling, mountain biking, swimming, and triathlon — and explains every workout in plain language. Whether you’re training for your first 5K or your 14-year-old just signed up for NICA, Corsa adapts to you.

No credit card required 4 sports + youth mode $12.99 / month · $99 / year
Corsa workout detail with the plain-language ‘why this workout’ Corsa weekly plan view — calendar strip with durations and the week’s focus
What is Corsa

One coaching engine. Every endurance sport.

Corsa generates your weekly training plan with a Claude-based AI agent grounded in a curated knowledge base of coach-approved workouts. The mobile and web apps adapt the interface to your level — beginners see effort, advanced athletes see power and pace.

🏃 Running 🚴 Road cycling 🚵 Mountain biking 🏊 Swimming 🏁 Triathlon ⚡ Strength
What you get

Built so you actually train better

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A fresh plan every week

Your next week’s plan lands every Saturday morning so you can see what’s coming. The plan respects your schedule, sport mix, and goal.

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Plain-language “why”

Every workout explains what it builds and why it’s in your week. No jargon required — “Easy 45-min ride that builds your base without adding fatigue,” not “Z2 / 45.”

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Safety guardrails by tier

Hard limits on volume, intensity, and recovery — adjusted for youth, beginners, and experienced athletes. The engine never asks a 14-year-old to do an adult interval session.

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Adapts to real life

Skip a session, get sick, or change your week — tap “Rebuild” and your plan adjusts. Tell it why, and the AI uses that context.

Connects to your devices

Syncs with Garmin, Apple Health, Wahoo, and Strava so your real activities feed back into next week’s plan.

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Progressive disclosure

Just starting? You see Easy / Moderate / Hard. Experienced? You see HR zones, pace targets, and power. Same engine, different interface.

See it in action

Three screens that say it all

The plan, the “why,” and the rebuild flow. No other AI coach gives you all three.

Corsa weekly plan view — calendar strip with durations and this week’s focus
Your week, with the “why”Every week opens with a plain-language summary of what it’s building — and a calendar that makes the load obvious at a glance.
Corsa adjust-plan modal — pick reasons and add a note
Adjust with contextTravel, illness, schedule change — pick the reasons and add a note. Your context goes straight into the regenerator.
Five-emoji effort feedback selector for youth athletes
Effort emojis for youth5-emoji feedback for under-18 athletes. Heart rate and TSS stay hidden until they’re useful.

Try Corsa free for 7 days

Personalized plans for running, cycling, MTB, swimming, and triathlon. No credit card required. Cancel anytime.

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