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{ Tag Archives } variation

Do More Consistent Skiers Ski Faster?

In a word, no.  But the relationship between consistency and speed is a little subtle.  To look at this question let’s take the distance results from major international competitions (OWG, WSC or World Cups) and restrict ourselves to those times when an athlete did at least ten races in a particular season.  Then for each […]

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Biathlon and Cross Country Volatility Trends

A commenter asked about whether I could take the data from this post and look at trends over time.  The answer, of course, if yes! The statistic of interest here is median absolute deviation (MAD), which is a measure of variability.  In this case, we’re calculating a MAD value for each skier and each season […]

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Variability In World Cup Ski Racers

[Note: This article first appeared here.] Kris Freeman recently commented on his blog, “I am a serious contender for the most volatile and inconsistent skier on the world cup”, in reference to his disappointing races at the Vancouver Olympics. Every cross-country ski racer knows that you can’t always race at your best, all the […]

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