The Average Umpire Is Almost 50. The Best Ones Might Be in Their

Human Fallibility and the Case for Robot Baseball Umpires

The Average Umpire Is Almost 50. The Best Ones Might Be in Their 30s. - WSJ

It is time for Major League Baseball umpires to stop calling balls and strikes

On average, how many calls do umpires get wrong in a game? - Quora

What over-optimized baseball has in common with unaligned AI - Vox

Home plate umpires are getting better. Will that hold off the robots?

Close Call Sports & Umpire Ejection Fantasy League: MLB Ejections 080-1 - Brian Walsh (1, 2; SEA x2)

Used Book in Good Condition

As They See 'Em: A Fan's Travels in the Land of Umpires

Study Finds that Old Men with Experience are Actually the Worst MLB Umpires - FanBuzz

Are Baseball Umpires Wrong As Often As Fans Think They Are? Yes, One Study Says

I made a video game where you play as a baseball umpire: The Ump Show! Call balls and strikes and see how accurate you can be. But also make sure your favorite

The Average Umpire Is Almost 50. The Best Ones Might Be in Their 30s. - WSJ