New Shocking Study Show MLB Umpires Show Blatant Discrimination
An Earnest Plea to Get Rid of K-Zone - Baseball ProspectusBaseball
In Defense of Umpires: Why Complaints About MLB's 'Ump Show
Umpire Angel Hernandez sues MLB over alleged racial discrimination
Minority Baseball Prospects shines spotlight, showcases Black players
In Defense of Umpires: Why Complaints About MLB's 'Ump Show
Baseball and race in Baltimore
Robotic Umpires: Baseball's Future or Doom? – The University
High School Baseball Umpires Quiz 2022
A New Study Shows Umpire Discrimination Against Non-White Players
Baseball umpires aren't blind. They just have trouble breathing