The Most Exciting Team in Baseball
As a baseball fan, winning feels great and losing feels awful. When teams win in dull fashion, fans are generally content to take the wins even if they aren’t all that thrilling. The Astros, Twins, and Dodgers are blowing teams out on a regular basis, but those wins aren’t causing too much consternation. But on the other end of the spectrum are teams that lose a lot of games and fail to provide much excitement during those contests. These are the bad teams that fall behind early and don’t give too much reason in terms of wins and losses to keep following the game. By combining a team’s winning or losing ways with how important at-bats tend to be, we can determine the most exciting team in baseball, as well as the most miserable club.
To determine how often teams have tension-inducing moments, we can take a look at Leverage Index (LI). Our glossary says “Leverage Index is essentially a measure of how critical a particular situation is. To calculate it, you are measuring the swing of the possible change in win expectancy.” A game’s LI starts at 1.0, and the more meaningful plate appearances gets, the higher the index rises; if plate appearances become less meaningful, the index goes lower. Leverage Index shows up on our Play Logs and is on the bottom of our Win Expectancy graphs. Here’s one for Game 3 of last year’s World Series:

The bars along the bottom identify the biggest moments of the game, even if something big doesn’t show up on the scoreboard. For teams, we are dealing with more than a thousand plays at this point in the season. If we take the average LI of every play, we can see if teams have a tendency to have a decent number of important moments during their games or if things are decided relatively early, with the players playing out games with little chance of changing the outcome. Read the rest of this entry »