2021 Official Major League Baseball (MLB) Rulebook

Official Rules of Major League Baseball 2021

Hover for
larger image

Sorry, we only have 21 available.
  Order by 2:30 PM ET, same business day shipping available! FREE Returns on This Item
(Contiguous U.S.)
Out of Stock

This item is discontinued and will not be available.

Notify me when this item is back in stock.


The official resource of Major League Baseball (MLB) for umpires, coaches & fans! Updated for 2021.

An important resource manual for umpires, this book contains the official and sanctioned MLB rules and their interpretations per the Playing Rules Committee, the sole group that determines baseball’s regulations.


  • Share:

Official Reviews


Benjamin B.

Brooklyn, NY

August 17, 2021
I have been buying all the updated OBR books for 10 years now. Stay in the know. Get this book!!

Harry P.

Terre Haute, IN

June 14, 2021
This rule book is an absolute must for all umpires. Complete, easy to follow and compact enough to have readily available for those complex issues that require definitive resolve. I will not approach the field with out it!

Submit Review

Questions About This Product

Be the first to ask a question about this product!

Ask A Question