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Race Snapshot: Tour de Ski 3/4km Prologue

See here for an explanation of these graphs. The men’s race: And the women’s race:

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2012 12 29 Joran Cross Country
Race Snapshots
Tour de Ski Comments (0)

The Difference Between Mass Start And Interval Start Races In One Graph

Thanks to some help from Jan at WorldOfXC.com, I’ve been slowly gathering the split time data for World Cup races from this season. Analyzing them is tricky, though, for a variety of reasons. First, the data quality is poor. There are numerous instances where the live timing data is obviously wrong in a way that […]

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2011 03 21 Joran Uncategorized Comments (6)

Race Snapshot: WSC Women’s 10k Classic

It sounds like Kowalczyk actually made it interesting this time around, although I have to say that while Bjørgen is impressive, this might actually get boring after a while. Or maybe Bjør-ing? Anyway, it’s nice to see Lahteenmaki get a strong result in at World Championships after having so many good races this season. And […]

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2011 02 28 Joran Uncategorized Comments (1)

How I Learned To Start Worrying and Hate the F-Factor (Part 2)

Previously, I described some problems with using percent back (PB) as a basis for comparing race performances.  Namely, mass start and interval start races produce very different types of PB’s.  In this post we’ll briefly consider whether this problem is actually worth worrying about and then I’ll finish with a simple solution.

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2010 06 23 Joran Uncategorized Comments (0)