About six years ago I threw together a website, www.runningforfitness.org, to make running-related calculations (for example: if I can run a 10km in one hour, how long might it take me to run a half marathon?).

Today I’ve changed one of the calculations because I made a mistake when I programmed the “Cameron Formula” (which is one way to predict how much more slowly you might run as the distance increases.)

The formula, which was proposed by Dave Cameron in 1993 and described in this email, was correctly listed in the website’s help pages, but I am sorry to say it was incorrectly calculated by the website.

I’m very grateful to Chris McCarton who checked the calculation and contacted me when he could not reproduce the answer given by the website.  As a result, I have now fixed the calculation.

I’ve also mended the switch between metric and imperial measures, which had stopped working.

One comment on Running for Fitness website updated

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