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Guides

How to read your training numbers, and how to get your data into Claude and ChatGPT. Written for runners, cyclists and triathletes.

Training

What the numbers on a training chart mean, and how to use them.

  • Fitness, fatigue and form, explainedCTL, ATL and TSB in plain words, with worked examples and a taper you can try.→
  • Readiness, explainedHow sleep, HRV and resting heart rate become one score, and why your watch may disagree.→

Connect your data to AI

Step-by-step setup for getting your training into Claude and ChatGPT.

  • How to connect Garmin to ClaudeThe options, which Claude plans support it, setup, and what Claude can read.→
  • How to connect Garmin to ChatGPTAdding a custom MCP server in ChatGPT, step by step, and what it can read.→
  • The Garmin Personal API with Claude and ChatGPTRunning your own server on Garmin's personal API key: setup, hosting and limits.→
  • How to connect Apple Health to ClaudeGetting Apple Watch workouts and health metrics into Claude.→
  • How to connect Wahoo to ClaudeYour Wahoo rides in Claude, and the workouts Claude plans sent to your ELEMNT.→
  • How to connect Wahoo to ChatGPTThe same for ChatGPT: setup, what it can read, and workouts to your ELEMNT.→

Product

  • Overview
  • Workout builder
  • Training load
  • AI agents
  • Raycast extension
  • Pricing

Integrations

  • Garmin + Claude
  • Garmin + ChatGPT
  • Wahoo + Claude
  • Wahoo + ChatGPT
  • Apple Health + Claude
  • Apple Health + ChatGPT
  • Workout MCP server
  • All integrations →

Training tools

  • TSS calculator
  • HRSS calculator
  • rTSS calculator
  • Relative effort calculator
  • Critical swim speed calculator
  • Triathlon pace calculator
  • Swimrun pace calculator

Resources

  • All guides
  • Garmin + Claude guide
  • Garmin + ChatGPT guide
  • Garmin Personal API guide
  • Apple Health + Claude guide
  • Wahoo + Claude guide
  • Wahoo + ChatGPT guide
  • Fitness, fatigue and form guide
  • Readiness guide
  • API docs
  • MCP docs
  • Help

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