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August 5, 2024 by Koen de Raad

The Lakehouse in Football Analytics

The Lakehouse in Football Analytics
August 5, 2024 by Koen de Raad
Imagine a scenario where you are working late, poring over data stored on your local PC. The data, often in JSON or CSV format, is scattered across various files and folders. Each dataset comes from different providers, such as StatsBomb, WyScout, and StatsPerform. Your task is to merge and analyze this data to extract meaningful insights for the coaching staff. However, you face numerous challenges: inconsistent data formats, cumbersome data updates, and the lack of intuitive data representation. This situation exemplifies a common issue in the sports analytics industry: the limitations of traditional, local data management in handling complex and varied event and tracking data.

Evolution of Data Storage: From Warehouses to Lakes

Data management has evolved significantly, with each phase addressing specific needs and challenges. Initially, data warehouses were the go-to solution. They offered a structured environment optimized for analytical queries, making them ideal for business intelligence. The rigid schema enforced data consistency and allowed for complex aggregations, crucial for deriving insights from structured data. However, as the diversity of data sources grew—encompassing everything from video footage to social media interactions—the limitations of data warehouses became apparent. They struggled with unstructured and semi-structured data, leading to expensive scaling and complex ETL processes. To address these shortcomings, the concept of data lakes emerged. Data lakes provided a more flexible storage solution, accommodating structured, semi-structured, and unstructured data. They allowed organizations to store raw data in its original format, making them a cost-effective option for handling large volumes of diverse data. The ability to ingest data without a predefined schema enabled exploratory analytics and data science. However, the lack of governance and the “data swamp” risk, where data quality deteriorates, were significant drawbacks. The slower query performance and lack of robust data management capabilities were also critical concerns.

The Lakehouse: Bridging the Gap

Recognizing the need for a system that combines the strengths of both data warehouses and data lakes, the Lakehouse architecture was developed. In essence, the data lakehouse is an extension of the data lake to provide data warehouse-like capabilities on top of a data lake. This architecture enables organizations to store vast amounts of raw data while offering structured, governed, and efficient querying capabilities.

A key innovation in the lakehouse architecture is the meta-data layer. This layer plays a crucial role in managing data, providing a unified view of the data stored across different formats and sources. It enables features such as transactional support and schema evolution, ensuring data consistency and reliability. For instance, with technologies like Apache Iceberg and Apache Hudi, the lakehouse can handle ACID transactions, allowing multiple users to read and write data simultaneously without conflicts. This capability is essential for maintaining data integrity, particularly in high-velocity environments like professional football analytics, where data is constantly being ingested and updated.

Practical Applications in Football Analytics

In professional football, the lakehouse architecture can revolutionize data management and analysis. By storing raw event data and tracking data from various providers in a data lake, clubs can maintain a comprehensive and detailed dataset. Tools like Apache Iceberg or Hudi allow this raw data to be organized and structured into predefined models, which can then be stored in iceberg tables for efficient querying.

Examples of models:

  • Seasonal insights per player: By aggregating data from multiple matches, clubs can derive comprehensive statistics for each player, such as goals, assists, distance covered, and pass accuracy. This data can be stored in structured tables, making it easily accessible for performance analysis.
  • Set pieces: Informative set piece data, including corner kicks and their effectiveness. For both your own team as for your opponents.
  • Player Tracking Data: Advanced tracking data provides insights into players’ movements on the pitch, allowing for analysis of positioning, work rate, and tactical discipline. This information is invaluable for developing training programs and game strategies.

The Lakehouse architecture, with its ability to manage diverse data types, ensure data quality, and support complex analytical queries, offers a comprehensive solution for clubs looking to gain a competitive edge through data analytics.

Conclusion

The Lakehouse architecture, enabled by technologies like Apache Iceberg or Hudi, addresses the limitations of traditional data warehouses and data lakes. By combining the best features of both, it provides a scalable, cost-effective, and efficient data management platform. The integration of a robust meta-data layer, support for transactions, and schema evolution ensures that data remains consistent, reliable, and easily accessible. As football clubs continue to leverage data analytics for competitive advantage, the Lakehouse architecture stands out as the optimal solution for unlocking the full potential of event and tracking data.

Previous articleBoosting Sports Analytics: Transitioning from CSV to Apache IcebergNext article Accelerating Data Reads in Iceberg: Caching and Optimization Strategies

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At Eyedle, we are dedicated to transforming the sports industry through innovative data solutions. Our team of experts specializes in leveraging the latest technologies to empower sports clubs and teams with actionable insights, driving both on-field and off-field success. Our blog serves as a hub for sharing our expertise, experiences, and the latest trends.

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