24HDC 2017

What is the 24 Hour Data Challenge?

The 24 Hour Data Challenge is a unique challenge to experience what it’s like to work as a real Data Scientist. Together with your team you’ll work for 24 hours straight on a data case from a well-known company. This year there are 3 companies providing a case: Albert Heijn,  NS and LeasePlan. You as an ambitious student will be coached by our very own team of Data Scientists to deliver the best results. After all the hard work it is time to, together with your team, present your findings to a jury of experts. Is your team going home with the big prize of €5000,-?

24 Hour Data Challenge 2017

In 2017 NEWCRAFT organised the 3rd edition of the 24 Hour Data Challenge in Amsterdam together with Gall & Gall.

The goal

Determine a new strategy to increase online revenue.

Working with real data

To answer this ‘question’ student teams were given access to different data sets. These were sets with campaign and sales data but also external data like events and the weather.

Getting to work

The characters of the participants were put to the test. Skills like data processing, manipulation, modelization and visualization all had to be used. The winning team provided Gall & Gall with some interesting actionable insights.

The result

During the Wilde Wijn Dagen (wild wine days campaign) a lot of new customers visited the online shop. However; these customers did not return on a later point in time. The winning team advised Gall & Gall to focus more on these customers to maintain them as loyal clients after the campaign ended. The winners of the 24 Hour Data Challenge were rewarded with a Sonos speaker!

Who are we?

The 4th edition of the 24 Hour Data Challenge is being organized by members of team CRAFTHUNTER; the NEWCRAFT traineeship that educates young talent – graduates and starters – in a one year program, on becoming a professional.

During the traineeship, ‘Crafthunters’ participate in a number of trainings to improve their hard and soft skills. Trainings are given by so called ‘blackbelts’, NEWCRAFT’s own experts and external professionals. With knowledge from all these trainings, the trainees are quickly prepared for the digital world. Newly acquired skills are used right away on projects for one of NEWCRAFT’s clients.

CRAFTHUNTER trainees choose one field of expertise: Data science, SEO & Content Marketing or Marketing Automation. NEWCRAFT cooperates with large (international) companies and next generation tech companies.

Once a year the CRAFTHUNTER trainees organize the 24 Hour Data Challenge. This year the 24HDC crew consists of:

Do you have any questions about the 24HDC? Send us an e-mail at 24hdc@newcraftgroup.com and we’ll help you out!


  1. What is the 24 Hour Data Challenge?
    The 24 Hour Data Challenge is a yearly initiative, organized by NEWCRAFT. We look for the brightest beta students in The Netherlands. For 24 hours straight, student teams work as real Data Scientists on tackling a case. Skills like data processing, manipulation, modeling and visualization are put to the test.
  2. For whom do we organize this event?
    For beta students. So do you study econometrics, artificial intelligence, data science or any other technical study? Apply now!
  3. Which companies provide the case?
    This year there are 3 companies providing a case: Albert Heijn, NS and Leaseplan.
  4. Can I apply if I don’t have a team (yet)?
    Of course! We’ll make sure that you have a team.
  5. What are the costs for this event?
    No costs, another reason to join ;).
  6. What about sleeping?
    24HDC: the name says it all, we work around the clock for 24 hours to tackle a data case. This doesn’t mean you can’t take a nap. We provide the camp beds if you bring your toothbrush.
  7. Is there anything I should bring?
    The only thing you should bring is your laptop and a huge amount of energy. We provide the rest!
  8. Any other questions?
    Send us an email at 24hdc@newcraftgroup.com and we’ll help you out.

Sign up for the 24 Hour Data Challenge

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