Title: Age Grading Calculator | runbundle
Headings: The Calculator
The Calculator
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Description
What is an age-grading percentage?
Using the calculator
How It Works
Judging quality
Description of terms
Athlete time
Senior athlete
Open-class-standard
Age-standard
Age-factor
Age-graded time
Age-grading percentage
Deriving factors
Road
Track
Non-standard distances
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Kipchoge
Kosgei
The challenge
Age Grading Around The Web
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Content: Specifically, the open-class-standard is divided by the age-factor to give the age-standard. age-standard = open-class-standard / age-factor
Senior athletes are assigned an age-factor of 1, so their age-standard is the same as the open-class standard. Age-graded time
The age-graded time is the time for a senior that is considered equal in performance to the athlete time. It is calculated by multiplying the time achieved by the age factor. age-graded time = athlete time * age-factor
Age-grading percentage
The age-grading percentage is the value that indicates the quality of a performance and can be used for comparison. It is determined by dividing the age-standard time by the athlete time and converting the resulting proportion to a percentage: age-grading percentage = age-standard time / athlete time * 100
Deriving factors
The factors that are used to calculate age gradings are determined in different ways for track, road, and non-standard distances: Road
We calculate age gradings for road events using the tables maintained by Alan Jones. His web site contains detailed information about how the factors are derived and the tables are compiled and there are links to download the age-grading tables as spreadsheets. Track
Age gradings for track events are calculated using a mix of techniques.