Enter the distance, enter your details and result, then press Age-grade to lookup the WMA factor. 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 WMA, and from these, your age-performance as a percentage of the Age standard 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. This page is reproduced courtsey of Howard Grubb. A fuller version of this page including sprints, hurdles, track, walks, throws and jumps can be found by clicking here.