Little League Rules, Regulations, and Policies
2021 Official Rules of Major League Baseball by Triumph Books, Paperback
Atlantic Baseball League to Test MLB-Approved Rule Changes in 2021 - On Tap Sports Net
About the Book The ultimate authority. The Official Rules of Major League Baseball is the essential resource for serious fans of the game. These are
2022 Official Rules of Major League Baseball - by Triumph Books (Paperback)
2021 MLB Playoff and World Series Schedule
Major League Baseball - Wikipedia
MLB's new experimental rules: What you need to know
MLB 2023 Preview: Pitch Clock and Other New Rules Aim to Speed Game Up - The New York Times
Fastball: Major League Baseball's Year of Change, by Mark Mahon, ILLUMINATION, Oct, 2023
Should Major League Baseball have a mercy rule?
Atlantic League, MLB tweaking double-hook DH rules trial - The San Diego Union-Tribune