Question 1

How accurate is it?

Accepted Answer

Predictions are validated against large race datasets and then adjusted for course and weather. Real fitness can change, so we show a range and pacing bands.

Question 2

Which inputs work best?

Accepted Answer

Recent, well-paced 10K or Half results. If yours was hilly or hot, we normalize for that.

Question 3

What does Strava access?

Accepted Answer

Read-only for training analysis. We don't post to your feed or message your contacts.