Micro-Interview Series

Episode
#23

Revenue Starts With Recognition: Know Your Fans

Micro-Interview Series •
327
 words
Dionysios Zelios
Chief Growth Officer
Data Talks

Introduction

Dionysios is the Chief Growth Officer at Data Talks, where he helps clubs and federations grow revenue by turning fragmented fan data into scalable, automated sales results.

With 15+ years of commercial leadership in B2B, he now brings that experience to the sports world,  supporting rights holders in boosting ticket sales, merchandise revenue, and sponsorship value.

Whether you're a small team with no data department or a top-tier club with siloed systems, Dionysios shows how CDPs can unlock value in weeks.

For clubs starting from scratch: what’s the first low-lift, high-impact step they can take to become more data-driven with their fan base?

Most clubs only monetize a tiny fraction of their fanbase. The first step to change that is simple: turn unknown followers into known supporters. Run a quiz, prediction game, or small competition that collects fan data. PAOK FC did this with score predictions in their app: fans played, the CDP captured data automatically, and loyalty points were awarded. Because you can’t maximize the average spend per supporter if you don’t even know who they are.

Many clubs say, “we don’t have the people to manage another system.” What do you typically respond when you hear that? What if a club has one marketing person and no data team, what’s still possible to achieve with a smart CDP setup?

That’s exactly why a CDP matters; it automates the heavy lifting. Red Star Belgrade ran automated birthday emails that reached 14,488 fans with a 62% open rate. One marketer set it up, and the system scaled it to thousands of fans. Once you’ve collected and merged your data, automation ensures fans get personalized offers without manual work. Even the smallest teams can increase ticket sales, cross-sell merch, and add sponsor value; all designed to maximize the average spend per supporter.

What’s a realistic timeline for a club to see commercial ROI from their CDP investment? And what are the early indicators that they’re on the right track?

Most clubs see ROI in under 3 months. The early signs? A growing supporter database, higher open rates, and small revenue spikes from automated campaigns like abandoned cart reminders or VIP ticket pushes. SC Paderborn unified their data and quickly boosted both ticketing and merchandise sales. And sponsors notice too; more segmented campaigns mean more valuable exposure. That’s when you know you’re not just selling more, you’re systematically maximizing the average spend per supporter.

Reflections

This interview with Dionysios Zelios from Data Talks was a highlight for me. I spend a lot of my time helping clubs work on CRM, data strategy and commercial growth, so his insights are right in my wheelhouse.

One line stuck with me:

“You can’t maximize the average spend per supporter if you don’t even know who they are.”

It sounds obvious, but most clubs still chase engagement without building a real database of known supporters. Dionysios explained clearly how the Data Talks platform helps clubs do exactly that. It is not just about technology, it is about turning unknown followers into real contacts, automating workflows and making campaigns scale even when there is only one person in the marketing team.

I found it especially valuable how he described the quick wins. Collect data through small, engaging actions like quizzes or score predictions. Then let the system automate follow-ups and personalized offers. This is how clubs like Red Star Belgrade ran birthday emails to thousands of fans with high open rates from a single setup.

For me, this is the sweet spot: practical, measurable steps that bring CRM and commercial strategy together. Data Talks has built a platform that makes this possible for clubs of any size. If you are thinking about growing ticketing, merchandise or sponsorship revenue, the insights Dionysios shares here are worth your time.

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Dionysios Zelios
Chief Growth Officer
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Dionysios Zelios
Matthias Werner
👉 The CRM guy for football clubs.
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