Run Pace Calculator | 80/20 Endurance

Run Pace Calculator

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  • #10510


    I use the Run Pace caclulator on the website using a recent 5k time to calculate my pace zones. I notice this has been tweaked a bit and the values seem to have changed from when I last put my 5k time in (2 weeks ago) – paces seem a bit slower?

    Can you tell me what has changed?


    Matt Fitzgerald

    We changed the calculator to make outputs based on time trials (and the talk test) more truly predictive of the pace a runner could sustain for 60 minutes at their current fitness level.


    Thanks Matt,

    When I backed my paces from the calculator in to the heart rate zones they were also pretty much spot on.

    As the pace calculator has now changed I’m thinking I should now retest my 5k time (after 6 weeks of HM2 plan) to recalibrate my HR zones – does that make sense?

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