25/05/2026
VO2 max Part 2: What does your score actually mean?
Your Garmin or Apple Watch might give you a number. But without context, it's just a number.
The table above shows how VO2 max scores are classified by age group — from Poor through to Superior — based on normative data from the American College of Sports Medicine (ACSM) and the Cooper Institute, two of the most widely referenced bodies in exercise science.
A few things worth knowing:
→ VO2 max naturally declines roughly 10% per decade after your 30s — but consistent training can cut that rate significantly
→ Women's scores run about 10–15% lower than men's on average — this is physiological, not a fitness gap
→ Wearable estimates carry a margin of error (typically 3–8%). A lab test gives you the real number
Find your age group. Find your score. Where do you sit?
Drop it in the comments — we're curious.
→ Book your VO2 max test at The RunClinic. Link in bio.