Welcome to Homerunweb, a website about baseball statistics, book reviews, and more by David H. Martinez, SABR member and author of The Book of Baseball Literacy: 3rd Edition.
July 12th
1:27 PM

Statistics Lessons

Lesson 1: What’s an on-base percentage?

This stat should have replaced batting average as the basic unit of measure for offensive players because it simply and concisely measures the most important element of being a hitter: getting on base.

Lesson 2: What is sabermetrics?

Sabermetrics is the study of baseball using advanced statistics to analyze the game. We’ll examine what it means and why it’s controversial.

Lesson 3: What’s an earned run average (ERA)?

As the basic statistical measure of a pitcher, ERA determines the average number of earned runs scored against a pitcher every nine innings.