No more generic spreadsheets.
Spreadsheets don't change. Rai does.
- –Fixed plan
- –One-size-fits-all
- –No feedback
- ✓Adapts to your pace
- ✓Personalized to your goal
- ✓24/7 chat and weekly tweaks


Workouts that adapt to your routine and your progress.
Ready in under 2 minutes.
Rai is an AI running coach that combines training science, your real data, and your feedback to build and adapt your plan.
Spreadsheets don't change. Rai does.
Rai trains with you toward it.
From plan to adjustment — see exactly what you find when you open Rai.

Every week already shows today's workout, your race goal, and the days left — no digging required.

Heart rate zone, target pace, and the reasoning behind each block — Rai explains before you head out.

Ask anything. Rai answers based on your real data — even when the answer is "ambitious, but possible."

Estimated VO2 and race predictions, updated with every run logged.
With every run you log, Rai re-reads your data and recalculates what comes next. You don't have to ask.
The workout arrives from your watch, or you mark it complete in the app.
Pace, heart rate, distance — and how you said the run actually felt.
Load, paces and days shift to match your real week, not the ideal one.
With the reason for the change explained, so you know what you're doing and why.

One request in plain language. Rai reschedules the workout and reports what changed across the week.
Build your plan and watch it adapt to your routine.
Rai has a name, a method and an opinion. She follows your week, comments on your workouts and answers from your data — not from canned phrases.
Every Sunday Rai sums up what happened and what it means for your goal.
If your goal doesn't match your numbers, she says so — and explains what's missing to get there.
Questions about pace, pain, shoes or race strategy: just ask, any time.

Less than $1 per day · 85% cheaper than traditional coaching
Billed monthly
No commitmentBilled $25.99 every 6 months
Save 38%Billed $41.99 annually
Save 50%From 5K to marathon, based on your running history.
Your plan changes when your week changes.
Structured workouts and automatic activity sync.
Questions, pacing, race strategy, and plan adjustments.
Track your progress and estimated finish times.
BEHIND RAI
The union of data engineering at scale and over 22 years of athletics and international high performance coaching.

FOUNDER
Technology, Data & Product

TECHNICAL LEAD
Training & High Performance
Methodology engineered at the intersection of elite sports physiology and data intelligence.
Explore the full story and methodologyEverything you need to know about Rai and how it works.
Still have questions? Download the app and chat with Rai!