My initial data request was not to predict a 5K or xyz time, although that is what everyone seems to do for some reason.
What I wanted to do was correlate speed, short & middle distance performance into a 5K run time.
Which I did. If you carefully read my posts I took ratios of time/WR time or speed/WR speed to come with a runner diagnostic profile of sorts. From there I was able to say that top speed was not my personal limiting factor, but sustaining speed (running efficiency) was.
You could roll those calculations out as far as you like, starting from 100M to see where your "problem" is.
For example if a marathoner had a better long distance ratio/WR marathon time vs speed ratio, then I would say that runner would need to train more at speed work, than doing distance runs.
About predictors: A 800M time is probably the minimum you'd want to use for marathon prediction. Obviously the closer you get to the actual marathon distance, the greater the accuracy. So a 5K time is better, as is a 10K etc. Let's say though the 800M time predicts a 3:30 marathon time. But the runner does 3:10, indicating a 800M time that is slower vs marathon performance. That runner could probably spend more time running middle distance to build speed - using ratios would be a more accurate way to determine that.
Training Tweets: https://twitter.com/Jagersport_com
FM Sports: http://fluidmotionsports.com
What I wanted to do was correlate speed, short & middle distance performance into a 5K run time.
Which I did. If you carefully read my posts I took ratios of time/WR time or speed/WR speed to come with a runner diagnostic profile of sorts. From there I was able to say that top speed was not my personal limiting factor, but sustaining speed (running efficiency) was.
You could roll those calculations out as far as you like, starting from 100M to see where your "problem" is.
For example if a marathoner had a better long distance ratio/WR marathon time vs speed ratio, then I would say that runner would need to train more at speed work, than doing distance runs.
About predictors: A 800M time is probably the minimum you'd want to use for marathon prediction. Obviously the closer you get to the actual marathon distance, the greater the accuracy. So a 5K time is better, as is a 10K etc. Let's say though the 800M time predicts a 3:30 marathon time. But the runner does 3:10, indicating a 800M time that is slower vs marathon performance. That runner could probably spend more time running middle distance to build speed - using ratios would be a more accurate way to determine that.
Training Tweets: https://twitter.com/Jagersport_com
FM Sports: http://fluidmotionsports.com