TRAP: a predictive framework for the Assessment of Performance in Trail Running

trail running
random forests
prediction intervals
An introduction to modeling trail running performance
Authors
Affiliation

Riccardo Fogliato

Department of Statistics & Data Science, Carnegie Mellon University

Natalia L. Oliveira

Department of Statistics & Data Science, Carnegie Mellon University

Ronald Yurko

Department of Statistics & Data Science, Carnegie Mellon University

Published

September 30, 2020

JQAS arxiv

@article{fogliato2021trap,
  title={TRAP: a predictive framework for the Assessment of Performance in Trail Running},
  author={Fogliato, Riccardo and Oliveira, Natalia L and Yurko, Ronald},
  journal={Journal of Quantitative Analysis in Sports},
  volume={17},
  number={2},
  pages={129--143},
  year={2021},
  publisher={De Gruyter}
}

Abstract

Trail running is an endurance sport in which athletes face severe physical challenges. Due to the growing number of participants, the organization of limited staff, equipment, and medical support in these races now plays a key role. Monitoring runner’s performance is a difficult task that requires knowledge of the terrain and of the runner’s ability. In the past, choices were solely based on the organizers’ experience without reliance on data. However, this approach is neither scalable nor transferable. Instead, we propose a firm statistical methodology to perform this task, both before and during the race. Our proposed framework, Trail Running Assessment of Performance (TRAP), studies (1) the assessment of the runner’s ability to reach the next checkpoint, (2) the prediction of the runner’s expected passage time at the next checkpoint, and (3) corresponding prediction intervals for the passage time. We apply our methodology, using the race history of runners from the International Trail Running Association (ITRA) along with checkpoint and terrain-level information, to the “holy grail” of ultra-trail running, the Ultra-Trail du Mont-Blanc (UTMB) race, demonstrating the predictive power of our methodology.