Champions League eight of finals’ draw: what are the odds?

[This is a guest post by my friend and colleague Bernardo Nipoti from Collegio Carlo Alberto, Juventus Turin.] The matches of the group stage of the UEFA Champions league have just finished and next Monday, the 14th of December 2015, in Nyon, there will be a round of draws for deciding the eight matches that willContinue reading “Champions League eight of finals’ draw: what are the odds?”

Power-laws: choose your x and y variables carefully

This is a follow-up of the post Power of running world records As suggested by Andrew, plotting running world records could benefit from a change of variables. More exactly the use of different variables sheds light on a [now] well-known [to me] sports result provided in a 2000 Nature paper by Sandra Savaglio and VincenzoContinue reading “Power-laws: choose your x and y variables carefully”

Comment courir un semi-marathon ou un 20 km?

Dimanche 9 octobre 2011, j’ai couru le 20km de Paris. Sur la ligne de départ à attendre dans le froid et la pluie, un « personal coach » jeune et dynamique nous donnait quelques conseils à suivre durant la course. Le principal d’entre eux était de commencer lentement sa course et d’accélérer sur la fin.Continue reading “Comment courir un semi-marathon ou un 20 km?”

Triathlon data with ggplot2

As Jérôme and I like so much to play with triathlon data, it is a pleasure to see that we are not alone. Christophe Ladroue, from the university of Bristol, wrote this post yesterday: An exercise in plyr and ggplot2 using triathlon results, followed by part II, way better than ours, here and here. For example,Continue reading “Triathlon data with ggplot2”

Power of running world records

Following a few entries on sports here and there, I was wondering what kind of law follow the running records with respect to the distance. The data are available on Wikipedia, or here for a tidied version. It collects 18 distances, from 100 meters to 100 kilometers. A log-log scale is in order: It isContinue reading “Power of running world records”

Quelques statistiques sur le Triathlon de Paris 2011

Ce dimanche 10 juillet 2011 nous nous sommes essayés avec Julyan au Triathlon de Paris. L’épreuve se composait cette année de 1.6 km de natation dans la Seine, de 38.5  km de vélo et 10 km de course à pied. Mis à part une eau très sale et froide, l’expérience s’est révélée fort sympathique ! CommeContinue reading “Quelques statistiques sur le Triathlon de Paris 2011”

Wilcoxon Champagne test

As an appetizer for Paris triathlon, Jérôme and I ran as a team last week-end an adventure racing in Champagne region (it mainly consists in running, cycling, canoeing, with a flavor of orienteering, and Champagne is kept for the end). It was organized by Ecole Polytechnique students who, for the first time, divided Saturday’s legsContinue reading “Wilcoxon Champagne test”

Triathlon in three colors

With Jérôme Lê we are planning to swim/bike/run Paris triathlon next July. Before begining the trainning, we want to know where to concentrate efforts. Let us look at some data. The race distance is known as Intermediate, or Standard, or Olympic distance, with 1.5 km swim, 40 km ride and 10 km run. Data for 2010 Open raceContinue reading “Triathlon in three colors”

Penalty shootout in FIFA World Cups

While looking for a post on octopus Paul, Jérôme told me about this surprising football stat: the team which begins a penalty shootout is more likely to win than the following team. Here is a so bad souvenir, with Trézeguet’s shoot on the bar… And yes, Italy went fisrt at shooting! What do data sayContinue reading “Penalty shootout in FIFA World Cups”