I question how fast I should have been able to run, as predicted by these.
Age-grade calculators are something that makes you feel better about being old.
I find that they work quite well. I've been doing a particular race for the past 25 years. I plotted my age graded time vs. year and the result is a horizontal curve. They were years where I had bad races and those data points are noticeably offset from the horizontal curve
They are quite accurate for me, because I have been racing competetively for 40 years, I know how fast I used to be. An age-graded PR is a beautiful thing.
They are quite useful for comparing performance within an age class, but there is a bias, softening of the curve, as we get older. Particularly seen in older women. Libby James of Colorado recently scored a 106%. That's effectively impossible but it's what the calculator says.
Quote from: Raj on October 24, 2014, 03:44:19 PM
They are quite useful for comparing performance within an age class, but there is a bias, softening of the curve, as we get older. Particularly seen in older women. Libby James of Colorado recently scored a 106%. That's effectively impossible but it's what the calculator says.
Don't know how this percentage works. Mine said I would have done a 3:18 marathon equivalent...