Select the event (or enter the distance), enter your details and result, then press Age-grade to lookup the WAVA/WMA factor (some data supplied by Jess Brewer). This factor is used to calculate an age-graded result, which can be compared with athletes of different ages.
Also shown are the Open and age-graded standards set by WAVA, and from these, your age-performance as a % of the Age std is calculated. This can now be compared between different events.
Pressing Result will calculate your result for a given age-performance - e.g. use your age-performance in one event to predict a different event or the same event at a different age.
Times can be entered as hh:mm:ss.dd - if no colon is supplied it will be taken as seconds; only one colon will be interpreted as mm:ss. The decimal seconds (dd) are not required. Distances and heights can be entered in metres, with or without decimal places.
Note that the factors are stored in this page, in Javascript, so that you can save the page to your local machine for use as an off-line calculator.
Decathlon and heptathlon scores (Dec pts) are also calculated from (relevant) results (including age-grading).
See also discussion of age-grading and athletics performance calculator which uses models for performance in distance running events. The tables and VBA functions to look up factors are available in an Excel spreadsheet.
(This calculator uses factors from 1994. New factors (2006) are used in another calculator)