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New jobs in sports analytics! Spanish Football’s Most Innovative Project -Led by a Former NBA Number Cruncher
How a new owner is using data to revolutionize a Spanish team.
Franco Betteo
October 30, 2025
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This edition I bring you recent jobs as always but also a super interesting post about how the former Dallas Mavericks director of quantitative research has become the owner a football/soccer team in Spain and is slowly building a culture of data-driven decision-making. This is a nice story which can help you see how some decisions are made, what can be done with data (change the playstyle but also help get better trades!) and a few nice charts that are educational and can help as inspiration for your own charts.
Remember, showing your abilities, having something to share that you’ve done is the best way to land a job or set a foot in the right network.
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Inside Spanish Football’s Most Innovative Project — Led by a Former NBA Number Cruncher
Haralabos Voulgaris bought Spanish second division side Castellón after leaving the NBA and Dallas Mavericks. Now, he is slowly building a culture of data-driven decision-making.
After leaving the NBA and the Dallas Mavericks, former professional bettor and data specialist Haralabos Voulgaris bought Spanish club CD Castellón. Since then, he’s been quietly building one of Europe’s most data-driven football projects.
At Castellón, Voulgaris applies the same analytical mindset that made him a success in basketball betting and the NBA front office. The club has already climbed from Spain’s fourth tier to the Segunda División within a year of his takeover and now ranks among the top teams in attacking metrics, playing a fast, aggressive style designed to win rather than draw.
His methods go beyond the pitch. Castellón’s scouting starts entirely with data models before any video review, avoiding traditional in-person scouting and allowing them to identify undervalued players globally. The club also profits from smart player trading, selling data-discovered talents like Daijiro Chirino and Jozhua Vertrouwd for major returns.
Voulgaris’ philosophy is simple: the goal isn’t to get every decision right, but to consistently make better ones.
In a football world driven by short-term results, Castellón is becoming an example of how disciplined, data-led thinking can reshape a club’s future.
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