Robot Umpire Experiments - Automated Strike Zone Possibilities
Reviews robot umpire trials conducted in NPB minor-league and Phoenix League games, analyzing call accuracy based on TrackMan data along with player and umpire reactions.
Articles tagged with umpire
Umpire Bribery Allegations in NPB - Examining the Dark Rumors Behind Calls
Allegations of umpire bribery in NPB history, from the 1960s Black Mist scandal to modern officiating controversies, and the institutional reforms that followed.
NPB Manager Ejections - The Aesthetics of Protest and Umpire Confrontations
Manager ejections occur 10-20 times annually in NPB. From Hoshino's 'fighting general' style to tactical ejections, this examines the reality and significance of managerial confrontations with umpires.
Female Umpires in NPB - Breaking Gender Barriers
NPB has zero female umpires despite no formal gender restriction. While MLB saw its first female minor league umpire in 2021, Japan's barriers remain. This examines institutional and cultural factors.
NPB's Umpire Evaluation System - Judging the Judges Behind the Scenes
Explaining how NPB umpires are evaluated and improve their skills through technology and institutional frameworks.
The Gesture Language of Umpires - Meaning and History Behind Calls
Even a single strike call varies between umpires. This article introduces the meaning of NPB umpire gestures, their historical evolution, and famous umpires known for distinctive calls.
The Introduction of Replay Review - The Coexistence of Technology and Umpires
An in-depth analysis of the introduction of replay review - the coexistence of technology and umpires, exploring umpire error issues before video review and ..
Umpire Abuse Problem - Protecting Officials in NPB
An analysis of verbal abuse and intimidation directed at umpires in NPB, examining ejection statistics, notable incidents, and the evolution of official protection measures.
Who Has Been Ejected the Most in NPB - The History and Hidden Statistics of Ejections
An ejection in NPB is one of baseball's most dramatic moments. Thrown caps, kicked dirt, uprooted bases. The history of ejections reveals NPB's fiery temperament and produces statistics that few fans ever see.
The Hidden Training System of NPB Umpires - How Baseball's Invisible Protagonists Are Made
NPB umpires undergo rigorous selection and years of development before taking the field, yet their training system remains largely unknown. This article details the path from recruitment to first-team promotion, judgment training methods, and the impact of technology.
Why 'Strike' Means 'Swing' - The Baseball Origin Hidden in the Umpire's Call
In English, 'strike' means 'to hit.' Yet in baseball, a pitch the batter doesn't swing at can also be called a strike. Why does a word meaning 'hit' describe a pitch that wasn't hit? The paradox traces to the umpire's evolving role in early baseball.
Nobody Can Perfectly Explain the Balk - The Most Ambiguous Rule in NPB
The balk is baseball's least understood rule. The Official Baseball Rules list 13 balk conditions, yet interpretation varies by umpire and even players struggle to explain them. Why is the balk so ambiguous?
Oh Ball and Nagashima Ball - Star Batters and the Umpire's Unspoken Bias
When Sadaharu Oh or Shigeo Nagashima stepped into the batter's box, umpires allegedly tightened the strike zone, calling borderline pitches as balls. Pitchers of the era, notably Yutaka Enatsu, testified to this phenomenon known as the Oh Ball and Nagashima Ball, symbolizing the issue of umpire bias toward star players in NPB.