How do you all feel about age-graded calculators?

[Ice Cream]

I question how fast I should have been able to run, as predicted by these.

[Richard21142]

Age-grade calculators are something that makes you feel better about being old.

[rayman54]

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

[Arrojo]

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.

[iwuzwilson]

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.

[Ice Cream]

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...