Grading MLB umpires: Meet the humans behind the Twitter bots that track balls and strikes - The Athletic
The Average Umpire Is Almost 50. The Best Ones Might Be in Their 30s. - WSJ
MLB umpires balance good, bad of tech advances - Global Sport Matters
Padres Daily: Making their own bad luck; Rich Hill's latest 'pathetic' performance brings up question - The San Diego Union-Tribune
A Statistical Analysis: Are MLB Umpires Biased Against Certain Teams?, by Max Naylor
10 Secrets of MLB Umpires
One of the Worst..” - Fans Take Aim as Controversial Umpiring Call Dampens Record MLB Season Amidst Egregious Return - EssentiallySports
MLB umps: 12 most embarrassingly bad calls by umps in June
Bad throw hits umpire, 09/04/2023