---
title: "How Can Analytics and Statistics be Applied in Sports?"
output:
ioslides_presentation:
smaller: true
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```
## Outline
- Appreciate the usage of analytics and statistics in sports
## How is Analytics Used in Sports?
- Designing lineups
- Power ranking of teams
- Determining future potential of draft picks
- Predicting outcomes of games
- Much more!
## Elo Rating System
- Intially developed for calculating skill level in 1 vs. 1 games such as chess.
- Discovered by Arpad Elo
- Consists of a series of complicated formulas
![](elo.png)
Image acquired from https://fivethirtyeight.com/features/how-we-calculate-nba-elo-ratings/
## Using Random Forests to Estimate Win Probability Before Each Play of an NFL Game
- Article by Dennis Lock and Dan Nettleton
- https://www.degruyter.com/view/j/jqas.2014.10.issue-2/jqas-2013-0100/jqas-2013-0100.xml
In this article, the authors apply a machine learning algorithm, random forests, to update in-game probabilities before the next play begins in the NFL.
##
Here is an image from the stated article, showing the win probabilities before each play.
![](probabilities.png)
## Building Optimal Teams (Moneyball)
- Movie released in 2011
- Describes how analytics in used in baseball to build rosters using less money than big time franchises
![](salaries.png)
Image acqurired from http://adilmoujahid.com/posts/2014/07/baseball-analytics/
## Predicting outcomes of games
- Arguably longest application of data in sports
- Collecting past data and leveraging that to predict the outcomes of future games
## Finding Similar Players
Are some players closely related to others that they form groups or *clusters*?
Image acqurired from https://fastbreakdata.com/classifying-the-modern-nba-player-with-machine-learning-539da03bb824
## Many More!!
There are many more applications of analytics in sports. This is just a few examples. In later lessons, we will give an introduction to machine learning, so you can do some of these independently.