On Friday night, a Giants fan threw a baseball on the field in the middle of a play at the plate, confusing players, coaches, ...

And as long as baseball has been a constant, so too has the umpire. The looming figure in blue with a booming voice and the personality of a junkyard dog has always been a unique character in the ...

Among the various rules that distinguish baseball from rounders is the role of the umpire. In baseball, the home-plate umpire calls every pitch in the game—ball or strike. In other sports ...

Home Plate Umpire Brian Walsh uses an earpiece to hear the electronic notification as to weather a pitch was a ball or a strike by the ABS system during a AAA minor league baseball game.

"It changes your whole day. You sleep better," he said. There's been enormous pressure on baseball to improve the accuracy of umpires. Missed calls can lead to lost tempers and ejections.