2020 Italian GP: Race pace (10 fastest)

The image shown above is a vector. You can zoom in as much as you want to see in which lap was each individual time done.

NOTE: For this particular GP, I made three charts. The first one is the one that I usually post, which shows the race pace over the whole race. The second and third chart show the race pace for the top 10 drivers before and after the red flag.

The main idea of this chart is to show the representative average race pace of each driver. Since plotting the raw data will not show accurate information, I have to do a bit of data pre-processing.

To remove the outliers, I use an IQR method. This means that the race pace analysis removes laps that are considered to be anomalous. This includes the first lap, laps done when the safety car was out and incomplete laps (laps when the driver went in or out of the pits). The IQR outlier detection has a main flaw, which is that it also removes slow laps that were caused by driver error or mechanical malfunction. For now this is as good as it gets, but I’ll try to improve this outlier detection method.

Laps done with the intermediate or wet tires are considered for this analysis. However, they aren’t shown here since they would mess up the presentation of the data.

The box represents a modified box plot, with the line in the middle representing the mean (average) time done by each driver. The top and bottom line respectivly represent the 75% percentile and the 25% percentile.

Remember that drivers with more pit stops tend to have faster times than drivers with fewer pit stops.

4 Comments

  1. Steve

    Find this fascinating – thank you for doing this.

    The consistency in the Sainz and Norris times is quite amazing – I know this can be a factor of surrounding traffic, but never-the-less…it’s good.

    You can also see Lewis bangs in some quick laps in the pre-penalty and is also very consistent in just hitting the required number. Gasly was pretty good too – where Stroll has a lot of variations.

    Reply
    • admin

      Not a problem Steve.

      Yes, traffic plays a big role, especially in tracks like Monza where DRS doesn’t have a big impact. Still, traffic is part of the race so drivers must adapt to the circumstances around them.

      Reply
      • fareshi

        Hi, very useful graphics. Thank’s for your job.
        Curiosity. What program do you use to create these charts? Excel?

        Reply
        • admin

          Hello Fareshi

          I’m glad you’re enjoying the analyses. To answer your question, no, I do not use Excel. I do all of my analyses with a programming language called R. It is a very powerful language specifically designed for data wrangling and statistical analyses.

          Reply

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