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Race Snapshot: Tour de Ski 15/35km Pursuit

You can read a brief explanation of these graphs here.

Men’s race:

Tds men pur2

Women;s race:

Tds wom pur2

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Sprint Hit Rate

The recent good fortune of the US women’s team, particularly in sprinting had me thinking a bit about measuring team performance in sprint events at a high level. The result was the following plots which show the rate at which the the top skiers (the top 4 in this case) in each race race one of three levels: qualification round, semifinals and finals.

First, the US and Canada:

Hit rate nam

The US women have seen an enormous spike in their qualification rate, a steady climb in reaching the semis and the finals rate has been more or less flat, as basically only Kikkan is getting up there at this point. Andrew Newell has had a somewhat stronger start to this season than he has in the past, so the finals and semis rate for the US men has ticked up slightly, but the qualification rate has continued its slow decline.

The Canadian women don’t look as bad off as I thought they would, although the qualification rate has certainly declined.

For comparison, let’s look at some top European nations:

Hit rate int

Note the contrast between the Norwegian men and women. (And recall that I’m only looking at each nation’s top 4 skiers in each race, so avoid Nation’s Group issues.) The Swedish men appear to have been rather inconsistent from year to year, but are doing better so far this year. The Russian men have also bounced around quite a bit recently. Whatever the Swedes were doing in 2009-2010 and

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Race Snapshot: Tour de Ski Freestyle Sprint

You can read an explanation of these graphs here.

The men’s race:

Tds men spr

And the women’s race:

Tds wom spr

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Kylloenen and Herrmann Improvements

Two skiers who have emerged over the past several races with noticeably improved results are Finland’s Anne Kylloenen and Germany’s Denise Herrmann:

Kylloenen hermann

Kylloenen’s results earlier in the season were more or less in line with her better results previously, but it’s been the last few races that have really been much better. Hermann on the other hand since more improved across the board, although her baseline was a bit below Kylloenen’s. There obviously haven’t been as many sprint races thus far:

Kylloenen hermann spr

So far, so good, certainly. For Kylloenen this seems like more of a continuation of a string set of sprint results from last season. Hermann has also been a solid sprinter, though if she continues on this pace it will constitute a massive improvement by eliminating all of her races at the bad end of the spectrum.

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Race Snapshot: Tour de Ski Classic Pursuit

See here for an explanation of these graphs.

The men’s race:

Tds men pur1

And the women’s race:

Tds wom pur1

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Race Snapshot: Tour de Ski 3/4km Prologue

See here for an explanation of these graphs.

The men’s race:

tds_men_pro

And the women’s race:

tds_wom_pro

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Pre-Tour Status Update

As we approach the Tour de Ski, this is a short assessment of how the US and Canadian teams are doing so far compared to previous seasons. As I typically do, I’m going to include all World Cup results, rather than just the best results. Clearly, there have been some strong results for both the US men and women thus far, but I’m frequently more interested in how we’re doing as a group, top to bottom.

Starting with the distance events:

midseason_dst

 

For the math-challenged out there, this is every US and Canadian distance result over the past several seasons. The lines represent the middle (Median) result and the top 20% (Quintile 1) and the bottom 20% (Quintile 5). The Canadians have just generally struggled all around so far.

Comparing the US men and women reveals the now standard difference. The US women have been improving steadily over several seasons across the board. Their worst results have improved about as much as their best ones. For the men, their best results have been flat, or possible improved slightly, depending on the time frame you want to look at. Up to this season, their worst results had also been improving. One mitigating factor here is that a fair number of the period one races were in Canada, which allowed for a deeper than usual American field. This means it’s more likely you’re going to see “marginal” starters being somewhat over-represented here. Of course, the counter-point is that the US women had the same race schedule…

As for sprinting:

midseason_spr

 

This is essentially the same post, only we’re plotting the final finishing place. It might be mildly surprising to see the US women’s trend lines running basically flat or even sloping up slightly, but if you think clearly about just the results we’ve had so far this season it makes sense. The women have put together some good sprint races, but Kikkan had one “off” sprint race, and Jessie Diggins has only made it past the qualification round once. So if Ida Sargent continues to have a strong season, and Diggins comes along later on, I think we’ll those numbers improve quite a bit relative to where they are now.

Once again, the less said about the Canadians, the better, except that I’m betting the rest of the season won’t be this bad. Maybe not awesome, but certainly not this bad.

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