What is the proposed ball-strike challenge system in MLB? - AS USA
Baseball's new electronic strike zone debuts in Worcester
Is baseball ready for robot umpires? We fielded an informal survey at the MLB All-Star Game in Seattle – GeekWire
MLB's automated strike zone debuts in Triple A Pacific Coast League - The Athletic
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MLB All-Star Futures Game to Get Automated Strike Zone Test –
Column: Improving ball-strike calls is a challenge MLB needs to take on, Professional: All Sports
The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America
MLB's runner-on-second in extras rule reportedly could return; league testing ball-strike challenge in minors
Electronic Strike Zones to Be Used by All 30 Triple A Teams, per Report - Sports Illustrated
John Shipley: MLB's experimental “Challenge” system has legs – Twin Cities
TIL Per official MLB rules, the strikezone is NOT the 2D box we see on broadcast. It's a 3D pentagonal prism, and if the ball touches any part of it, it's a
Instant replay in Major League Baseball - Wikipedia
Triple-A's Ball/Strike Pitch Location Challenge System Update and a Minor League Ejection in OKC
Smith: Automated ball-strike system is here to help
