Joseph Mestrallet: Data-Driven Race Pacing Strategies

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Overview

Join Coach Scott Johnston for a conversation with Joseph Mestrallet, who works alongside Scott on the team of 2025 UTMB 1st-place finishers Tom Evans and Ruth Croft as a data analyst for running performance metrics. In this discussion, they explore the pacing strategies and analytical tools used for Tom and Ruth, and how Joseph’s experience both as a runner and a mathematician provide a unique skill set to approach the pacing challenges of ultra-distance races. See episode guide for topics covered. 

Learn more about Joseph’s company, Enduraw Performance Science.

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Episode Guide

• 00:00:00 Introduction
• 00:00:49 Joseph’s background
• 00:03:58 About Enduraw
• 00:08:57 Emergence of data-driven performance
• 00:14:34 Applying data analysis
• 00:22:45 “Digital Twin” data modeling
• 00:30:19 Ruth Croft’s 2024 UTMB pacing
• 00:38:03 Using grade-adjusted pace
• 00:49:34 Tools for amateur and elite runners alike
• 01:01:42 Data + training builds confidence
• 01:09:19 Final thoughts