PacePartner — AI Coaching for Intervals.icu Athletes | HRV, CTL Analysis & Workout Sync

4 min read Original article ↗

🏃 Built for Intervals.icu Athletes

Train smarter with an AI coach that reads your data

AI-powered training coach for self-coached runners and cyclists using Intervals.icu

PacePartner.app connects to your Intervals.icu account, analyzes your HRV, fitness load, and recovery in real-time, then tells you exactly what to do today — and pushes it straight to your calendar.

7-day free trial — no credit card required

Am I ready for tomorrow's tempo run? My legs felt heavy on yesterday's easy jog.

Your CTL is 52 and ATL is 61, putting TSB at −9 — moderate fatigue. HRV this morning was 6% below your 7-day baseline, and yesterday's easy run HR was elevated.

I'd downgrade tomorrow to a steady Z2 run with 2×5 min at low tempo to keep rhythm. Pushing full tempo with this fatigue profile risks a flat session and a deeper hole.

✓ Updated workout pushed to your Intervals.icu calendar

Real coaching conversation with live Intervals.icu data


A coach that works while you sleep

Every morning, PacePartner.app has already read your overnight recovery data and is ready with today's prescription.

Live Wellness Analysis

Reads your HRV, sleep quality, ATL/CTL, and fatigue scores directly from Intervals.icu to determine today's real readiness — not just yesterday's plan.

Conversational Coaching

Ask "Am I overtraining?" or "Should I skip tomorrow's long run?" via Telegram or Web and get contextual, data-backed answers.

Auto-Generated Workouts

Creates structured sessions with precise Zone targets that sync directly back into your Intervals.icu calendar — no copy-paste required.

Race-Day Periodization

Reads your A, B, and C races from your Intervals.icu event calendar and builds a periodized build→peak→taper plan around them.

Dynamic Load Management

Continuously monitors your Fitness/Fatigue ratio and auto-scales intensity if you're accumulating too much training stress.

Multi-Platform Access

Chat with your coach via Telegram and the Web UI. Your coaching goes wherever you are.


Why athletes choose PacePartner

What you get

  • Reads and writes your Intervals.icu calendar — not just analytics
  • Transparent reasoning that cites your real CTL, ATL, HRV, and recovery data
  • Free public tools — taper planner, HRV decision tool, workout adapter
  • Starts at $4/month — no $20/mo minimums, no annual lock-in
  • Works via Telegram and web — coaching wherever you are

What most AI coaches miss

  • Most can read your data but can't push workouts back to your calendar
  • Most give advice without showing which metrics drove the recommendation
  • Most start at $15–20/month with limited free functionality
  • Most require their own ecosystem instead of working with the tools you already use

Up and running in minutes

No spreadsheets, no complex setup — just authorize and start talking to your coach.

1

Connect Intervals.icu

Authorize via OAuth in one click. We pull your fitness profile, wellness, and calendar events instantly.

2

Tell Us Your Goals

Share your target race or training focus — or let the AI infer it from the upcoming events already in your calendar.

3

Start Chatting

Message your coach on Telegram or the web app. Get workouts pushed directly to your calendar.

Simple pricing

Free trial included. Cancel anytime.

Billed Monthly Billed Yearly Save up to 17%

Basic

$40/yr

$4/mo

That's $3.33/mo

Billed monthly

  • 5 AI coaching messages per day
  • Daily readiness analysis
  • Automated structured workout generation
  • Workout sync to Intervals.icu
  • Telegram and web access

Recommended

Pro

$80/yr

$8/mo

That's $6.67/mo

Billed monthly

  • 15 AI coaching messages per day
  • Everything in Basic
  • Advanced AI reasoning
  • Taper and race planning
  • Load management from ATL/CTL trends
  • Overtraining risk detection
  • Faster, deeper coaching support

Common questions

How PacePartner fits into the tools and coaching rhythm you already use.

Do I need to leave Intervals.icu?

No. PacePartner works with your existing Intervals.icu setup. It uses the training, recovery, and calendar context you already keep there instead of asking you to move into a new system.

What data is used to make the recommendation?

Recommendations use the training and recovery signals already shown across the site: your planned workouts, calendar context, CTL and ATL trends, HRV, resting heart rate, and recovery or wellness inputs when available.

Is this replacing a human coach?

No. PacePartner is built as decision support and day-to-day coaching help for self-coached athletes or for the gaps between coach conversations, not as a blanket replacement for human judgment.

Can I try the logic before signing up?

Yes. You can use the free public tools and start with a trial before committing, so you can see how the logic handles common decisions before you pay.

How does this fit into my current workflow?

Keep Intervals.icu as your training hub, use PacePartner in Telegram or on the web, and pull it in when you need a taper plan, a workout adjustment, or a fast read on whether today should stay on track.

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