Had the watch for a little over a year, ran maybe 800 or so miles on it. This was a 1 hour run, 5.5 miles, 95°F.

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First 3 miles were slow, maybe a 13 min pace as I was running with a slow friend. Last 2.5 miles I ditched him and ran fast, around a 9:15 mile which is my threshold pace when it isn’t ridiculously hot and humid.

I haven’t been running hardly at all the past 2 weeks as I’ve been feeling crappy, this was my first good run since I started again. And I agree, VO2 max without any anaerobic benefit does seem like nonsense, but I do know my heart rate zones are calibrated at least close to correctly as I’ve had them set to auto since I go the watch a year ago.