Question 1

Is AI coaching actually effective for endurance training?

Accepted Answer

The training science is the same math coaches already use: load, fatigue, and form computed from your completed workouts, periodized toward your race date. What the AI adds is speed. It reads your HRV, sleep, and recovery every day and adjusts the plan instead of waiting for a weekly check-in, and every adjustment shows its reasoning so you can judge it the way you would a coach's call.

Question 2

Why is AthleteSpace free?

Accepted Answer

We're early, and we would rather grow with serious athletes than charge them while we do. Modern AI makes coaching cheap to run. If we add a paid tier later it will be for extras; the core coaching stays free. No ads, and we never sell your data.

Question 3

How does the AI decide when to change my plan?

Accepted Answer

From what you actually did: workouts completed, skipped, or moved, plus HRV, sleep, and recovery trends from your connected devices. When those drift from what the plan assumed, your upcoming sessions regenerate, and each change comes with the reason written out.

Question 4

Is my health data secure?

Accepted Answer

Data is encrypted in transit and at rest. Connections to Garmin, Strava, and other services use OAuth, so we never see those passwords, and we never sell or share your data. You can disconnect any integration or delete your account and all of its data from Settings at any time.

Question 5

What if I already use TrainingPeaks or a human coach?

Accepted Answer

They coexist fine. AthleteSpace syncs from the same devices and uses the same load metrics (CTL, ATL, TSB), so you can run it next to TrainingPeaks and compare the calls it makes. Athletes with a human coach use it between check-ins; others compare for a few weeks and drop the paid subscription.

Question 6

Who built AthleteSpace?

Accepted Answer

Bruno Artacho, an AI researcher (PhD in computer vision, previously at Amazon and Google, 20+ peer-reviewed publications) and endurance athlete. He built the coach he wanted for his own training.

Training plans for 85 races