Tour de France Wrap-Up

The final installment of the 2011 Tour de France graphs, and what a fun race that was this year! Plenty of excitement (for some not so fun reasons) early on and then plenty of exciting racing towards the end. Good stuff…

As usual, you can click on them for slightly larger versions. Here’s the same graph for 2011 broken down by team: Read more

Tour de France Attrition Rates

Fellow blogger (and, full disclosure, good friend) Cosmo kind of stirred things up a bit with post regarding attrition rates in this year’s Tour. My cycling blogging has been mostly just for fun, as I’m not much of a cycling expert, so I mostly do it to entertain those folks who enjoy mixing sports, numbers and graphs. But statistical commentary on sports draws me like a moth to a flame, so I basically have to weigh in.

At the moment, his commenters are kind of laying into him, and there are some legit criticisms there. But as with anything else on the internet, people are getting considerably more worked up over this than seems reasonable. Would data on attrition due to crashes specifically be more germane? Yep! One of his commenters went out and tried to track down that information on crashes and found that the attrition rate due to crashes does seem considerably higher this year. However, it’s important to note that information on the reason for withdrawals can’t be found in every case, so even that analysis is somewhat incomplete.

That’s not really a criticism, just an observation you can make about any attempt to answer a question using data.

Can I do any better? Not without better data, probably. But here’s something I cooked up that might be interesting. (All data courtesy of cyclingnews.com.)
Using data from the 2005-2011 Tours (the only unified, easily scrapable set I could find on short notice), here’s a graph showing attrition rates (due to all causes) throughout each Tour: Read more