Serve and Return Elo Ratings

Serve and Return Elo Ratings

The Elo rating system is one of the most popular tools for rating player and team performance. In this post, I show how we can take the Elo system beyond match wins and use it to rate players on the two most fundamental skills in the sport: serving and returning.

The Many Sides of Excitement

The Many Sides of Excitement

Having a metric for match excitement would be a useful tool for separating humdrum matches from thrillers. In this post, I have a look at two indices for measuring match excitement and discuss what’s to like and dislike about each.

Shot Quality Maps

Shot Quality Maps

Imagine you could measure the quality of every shot during a tennis match. What would it reveal about a player’s performance and where on the court they perform best?

Is Fatigue Cumulative?

Is Fatigue Cumulative?

Fighting off fatigue in any Grand Slam match is a challenge. Does this get even harder after multiple matches?

Measuring Match Fatigue

Measuring Match Fatigue

A talk at the recent New England Symposium on Statistics in Sport (NESSIS) made me wonder whether we can observe player fatigue in tennis matches? and how?

Assessing Scoreboard Effects

Assessing Scoreboard Effects

Do the numbers on the scoreboard affect how a player performs? In this post, we look at how to measure scoreboard effects and identify some top players who appear vulnerable and others who seem impervious to the scoreboard.

Women's Slam Strength Also Down in 2017

Women's Slam Strength Also Down in 2017

In 2016, Angelique Kerber and Garbine Muguruza shocked tennis with Major wins. This year, Jelena Ostapenko and Sloane Stephens were the unexpected first-time slam title-holders. Who, if any of these winners, were helped by an easier Grand Slam field?

Decline of Men's Slam Strength in 2017

Decline of Men's Slam Strength in 2017

Now that the US Open—the last of the four Majors of the tennis calendar—has ended, it is more clear than ever that the 2017 season has been a strange one.