Garmin’s Forerunner 620 (FR620) uses profile and realtime HR data to estimate a user’s VO2 max. From this estimate, it predicts race times over four distances. This post reproduces (partially at present) the table within the FR620 from which it looks up the potential race times for each VO2 max value.
[Garmin’s subsequent watches supporting the VO2 max feature use the same table in their implementation – Epix, Fenix 2, Fenix 3, FR230, FR235, FR630 and FR920XT.]
The table below summarises data I collected from within the Garmin user forums and in particular via a thread I started to request data from other users. [If you are able to contribute any data not currently included please leave a comment here on this blog. The Garmin FR620 forum has now been archived and further posts to that thread are no longer permitted.]