Jason Koop

KoopCast · @jason-koop

Coach Jason Koop covers training, nutrition and recent happenings in the ultramarathon world.

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From Jason Koop

Coach Jason Koop covers training, nutrition and recent happenings in the ultramarathon world.

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The classics

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What fans should know

takeaway

Koop AI's Development and Features

Koop AI is an adaptive, terrain-aware training system for trail and ultra runners, built from 25 years of coaching. It offers dynamic plan changes, NGP-based feedback, race specificity for course demands, and features like a chatbot and calendar management. The creators acknowledge early-stage UI/UX limitations and are improving it with real race data.

takeaway

Benefits of Koop AI

Koop AI aims to provide expert validation for serious runners without elite pricing, making top coaching accessible. It models three pillars of coaching: prescribe, analyze, and communicate, pulling real history and race demands for personalized plans.

takeaway

Ultramarathon Pacing Insights from UTMB Data

Research from the 2023 UTMB analyzed Strava data from 600 participants, revealing distinct 'force' (uphill ability) and 'velocity' (flat ground speed) components of performance. These components are uncorrelated, requiring targeted training. A case study of Jim Walmsley showed specific improvement in steep climbing led to his 2023 UTMB win.

takeaway

Training Gut for Ultramarathons

Isabel Martinez, a Research Sports Dietitian, studies gut training and consults with athletes. Her work includes systematic reviews on the effect of gut training on GI status in endurance exercise and the development of low-fructose carbohydrate gels.