The Vertical Blog
Running, training science, and the tools we wish existed
Honest, technical guides written runner-to-runner. The tutorials are real — the coach we built is what happens when you want them to be automatic.
How to Connect ChatGPT to Strava in 2026 (and What Just Changed)
Strava rewrote its API rules on June 1, 2026, aimed squarely at AI tools. Here are the three ways to get your Strava data into ChatGPT today, what each costs you, and which ones the new policy actually allows.
Read the guide →How to Connect ChatGPT to Garmin Data (2026 Guide)
Garmin has no personal API, the unofficial libraries broke in March 2026, and FIT files are binary. What actually works for getting Garmin data into ChatGPT, route by route, and what each one loses along the way.
Read the guide →ChatGPT as a Running Coach: The Best Prompt We Could Build (and Where It Breaks)
A copy-paste coaching prompt that gets the most out of ChatGPT, plus what peer-reviewed research, expert coach ratings, and OpenAI's own postmortems say about where AI training advice goes wrong.
Read the guide →