Rules Explained
The Infield Fly Rule Explained (And Why It Exists)
When the infield fly rule applies, what the umpire calls, what runners can do, why the rule exists and the famous 2012 Wild Card Game call.
umpires
Rules Explained
The Strike Zone Explained: Official Definition and How It Is Called
What the rulebook says the strike zone is, how it moves with each batter, why umpires' zones differ, and how pitch tracking and ABS measure it.