Football Data Analyst

Yiannis
Kastritis

I analyse how players and teams create, concede, and transition value — combining tracking and event data to produce insights across off-ball movement, defensive transitions, opposition analysis, and player profiling.

View my work
3Portfolio projects
MScFootball Data Analytics
3Club environments
NHSData & decision-making

"My background in sports therapy and healthcare gives me a different lens — pattern recognition, physical performance, and structured thinking under pressure."

Selected projects

Interactive scouting dashboard

Live App

Tactical Role Profiling Dashboard

An interactive Streamlit application built from my MSc thesis. Explore player roles and performance metrics across Europe's top leagues — designed to support scouting workflows and tactical decision-making.

  • Positional dashboards — Defenders, Midfielders, Forwards
  • Tactical role filters by data-driven cluster group
  • Player comparison via radar & bar charts
  • PCA-derived Key Performance Areas
  • Custom metric selection & raw data table
Launch app
football-role-clustering.streamlit.app
Position
Midfielders ▾
Tactical Role
Ball-Winning Midfielder ▾

A different kind of analyst

I'm an early-career football data analyst with a hybrid background combining tactical football analysis, data analytics, and sports therapy and healthcare.

My work sits at the intersection of tactical insight and data-driven analysis, with a particular focus on off-ball movement, transitions, and spatial behaviour — areas where tracking data is reshaping how we understand the game.

Before moving fully into data, I worked as a Diabetes Specialist Nurse with the NHS — an environment that built strong pattern recognition, structured decision-making, and the ability to communicate complex findings to non-technical stakeholders. That background translates directly into how I approach football data.

I hold an MSc in Football Data Analytics and have worked in real football environments across scouting, opposition analysis, and club governance — including time with Portland Thorns (NWSL), US Mondorf, and Athenians FC.

Technical

Pythonpandas Streamlitmatplotlib seabornSQLTableau

Data & Methods

Tracking DataEvent Data PCAK-Means xThreatSpatial Analysis

Football & Domain

Off-ball MovementTransitions Opposition AnalysisPlayer Profiling BiomechanicsLoad & Fatigue

Where I've worked

Portland Thorns
via Sports Data Campus

Applied Opposition Analysis — NWSL Context

Applied opposition analysis project developed through Sports Data Campus, structured around a Portland Thorns (NWSL) scenario. Used IMPECT-style event data to identify patterns around regains, box entries, and transitions — delivered as a coach-facing report within a professional analysis framework.

US Mondorf
Video Scout

Video Scout

Match analysis, player evaluation reports, and tactical observation in a real football environment. Developed the ability to communicate data insights clearly in football language.

Athenians FC
Club
Board Member Tactical Analyst Video Analyst Player

Multi-role Club Involvement

Involved at Athenians FC across four dimensions — as a board member contributing to club-level decisions, as a tactical and video analyst producing match and opponent analysis, and as a player with first-hand understanding of game structures from within the environment.

NHS
Healthcare

Diabetes Specialist Nurse

Decision-making under pressure, pattern recognition from complex data, and structured communication with non-technical stakeholders. A background that directly informs how I approach analytical problems in football — particularly in physical performance and load management contexts.

Let's talk football data

Open to roles at data companies, clubs, and hybrid analysis environments. Particularly interested in tracking data, off-ball movement, and transition analysis.