SteelBody Coaching Data Platform

Coach Desny Wijsbroek of SteelBody runs a high-volume coaching practice. With dozens of active clients, each generating daily data points across training, nutrition, and progress tracking, the amount of information quickly becomes unmanageable through Trainerize alone.

The core challenge: how do you turn a flood of raw coaching data into actionable insights — without spending hours manually reviewing spreadsheets and dashboards?

We integrated directly with the Trainerize API to pull in client data automatically. On top of that, we built a Spring Boot application that caches the data locally, keeping everything fast and responsive even when dealing with large datasets.

But speed was only part of the equation. The real value lies in the analysis layer. The platform runs automated analysis on client progress, flagging trends, plateaus, and anomalies that would otherwise go unnoticed. This gives Desny the ability to make data-driven coaching decisions at scale.

We also added the ability to enrich the data — adding context, notes, and custom metrics that Trainerize doesn't natively support. This transforms the platform from a passive data viewer into an active coaching tool.

The result: a coaching data platform that turns raw numbers into coaching intelligence. Less time digging through data, more time coaching.