Updated & Enhanced 400m duncanScores

  •  – Photo courtesy Doug Shaggy Smith –

For new followers of the duncanScore, here is some background.

To date  duncanScore “scores” have been based on the accumulation of mastersrankings.com best annual individual performances for the years 2013-2016.  (For more detail here are the nuts and bolts on how the calculator works and the results generated.)

And now the calculator for the 400m age-groups has been updated to include international performances from mastersrankings.com for the years 2017, 2018, and 2019.  As well, for additional robustness, US-only performances from 2006-2012 have also been included.

This means that all 400m duncanScores are based on results from 2006-2019. (2006-2012 US results only). This is for both Men and Women. (Note age-groups 75+ were already enhanced with these added years and performances from other additional sources. You can read the details here if curious.)

What does this mean for the “Scores” and percentiles? It gives us scores with better precision since the number of performances in each age group has pretty much doubled.

However, at the same time, because the existing 4 years included (usually) thousands of performances, changes tend to be fairly minor. Typically your percentile, if it changes, will likely be only 1 or at most, 2 percentiles. .

This is part of duncanScore 2.0, and this upgrade to other events will be announced as they are completed.

So please try the new calculators to see how you rate against your 400m peers across the world. Just click here

Track DE

Then from the drop down menu choose your age-group. Next select  “400m” from the track EVENT drop down list. Finally, enter your time (in minutes and seconds) and then click the green  “Ok … Done …GO” button.





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