What you get
Two inputs.
Pick 2 km rowing or 5 km running, enter your time. Baseline returns an estimated VO₂ max in ml/kg/min.
A comparison bracket.
Where your estimate sits for your age and sex, using published population norms. Bracket and one-liner, no leaderboard.
Honest caveats.
Field-test estimates are ±3–5 ml/kg/min at best. The report says so clearly. This is not a medical assessment.