Simple predictive models for track and field world placing
(Einfache Vorhersagemodelle für Platzierungen bei Leichtathletik-Weltmeisterschaften)
I decided to test a novel methodology for predicting 100 meter and 110 meter hurdler medalists in the the 2017 World Championships. Specfically, I wanted to builder a model that predicted both placing and the probability of medaling. I decided to predict these odds based on each athlete`s results during the 2017 track and field season. In order to test the validity of this approach, I built a model for each World Championship year from 2005 to 2017. I scraped the IAAF website for all 2005-2017 outdoor results (https://www.iaaf.org/records/toplists/sprints/).
I followed a rather basic approach to predicting medalists:
I fit linear models to the data using performance during a given season (sans World Championship results) as my predictor variable for that season`s World Championship medalists. I fit a different model for each season.
I fit a binomial generalized linear model (GLM) to predict the probability of a given athlete medaling in a given year.
I did try fitting one binomial GLM for all the data, however, when I applied the coefficients to predict medalists for one season (2017), the model overestimated probability of medaling for each athlete because it assumed there were 21 medal positions (3 medals x 7 years).
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| Schlagworte: | |
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| Notationen: | Trainingswissenschaft Naturwissenschaften und Technik |
| Veröffentlicht in: | The World through data |
| Sprache: | Englisch |
| Veröffentlicht: |
2018
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| Online-Zugang: | https://theworldthroughdata.wordpress.com/2018/04/22/simple-predictive-models-for-track-and-field-world-placing/ |
| Dokumentenarten: | elektronische Publikation |
| Level: | mittel |