We would like to show you an alternative to AGE GRADING. Why? What is the problem with age grading?
Well in fact, age grading generally works well, particularly when comparing similar events (e.g. 100m and 200m or 800m and 1500m). But there tend to be wrinkles when crossing disciplines (e.g. sprints to middle distance to long distance)and there seem especially to be difficulties when comparing track events to field events. Generally sprints are quite “high”. and throws and jumps in the main tend to be lower in age grades.
Why is this? We don’t have THE definitive answer, but a big part is the basic methodology/theory. For each age group and event, the starting point is the best performance EVER by an individual, who is, almost by definition, an outlier. To simplify somewhat, Age Grading tables are calculated using (at the time) the World Record for that Age Group in that event. All Age Group records are then plotted and a “curve” is designed which provides a “best fit” to the data. These “best fits” become even more complicated when, as Age Groups become older, the weight of throws’ implements lessens; in hurdles and the steeplechase distances become less and hurdle heights change.
None of this is necessary with the duncanSCORE; there really is no estimation, just hundreds/thousands of results to use to calculate the statistics.