Artículos sobre la historia de cambios de reglas y reformas del sistema
The pitch clock introduced in MLB in 2023 dramatically reduced game times. As discussion intensifies in NPB, this article examines compatibility with Japanese baseball culture and the pros and cons of adoption.
Examines the technical and operational challenges of introducing automated ball-strike systems such as TrackMan and Hawk-Eye into NPB, drawing on accuracy data from MLB ABS trials.
The reverse nomination draft system, which existed from 1993 to 2006, was a groundbreaking mechanism allowing players to choose their team.
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.
In NPB, a game tied after 12 innings ends in a draw. In most professional baseball leagues worldwide, ties either do not exist or are extraordinarily rare. Why does Japan alone tolerate baseball without a winner?
La NPB ha restringido durante mucho tiempo las negociaciones con agentes de jugadores. Que los jugadores conduzcan personalmente las renovaciones de contrato con los equipos se considera「tradición」, evitándose la intervención de agentes profesionales.
Un análisis de la historia del sistema de corredor designado que existió en NPB. Este artículo examina el contexto de su introducción, la realidad operativa, el proceso que llevó a su abolición y el papel que desempeñaron los especialistas en corrido de bases.
The development player system introduced in 2005 opened professional baseball's doors to many young players. However, problems exist in the 2.4 million yen minimum salary, the narrow path to roster registration, and the structure of being used as cheap labor under the name of 'development.'
Half a century after the Pacific League adopted the DH in 1975, the Central League still has pitchers bat. This article examines both sides of the unification debate and the tactical and economic implications.
Each NPB stadium has unique ground rules. This article introduces the world of special rules created by stadium structures, from balls hitting ceilings to balls stuck in fence gaps.
Examines the evolution of game cancellation criteria during typhoon season, the impact of domed stadiums, rescheduling system design, and new challenges posed by climate change with concrete data.
Explaining how NPB umpires are evaluated and improve their skills through technology and institutional frameworks.
A strikeout that isn't an out. The uncaught third strike rule is so complex that even experienced players struggle to explain its conditions correctly. Why does this rule exist, and what are its exact requirements?
NPB's free agent system since 1993: domestic FA after 8 years, international after 9, compensation mechanisms, and the talent concentration debate.
Triggered by pitch count limits in high school baseball, NPB is debating pitcher workload management. This article analyzes scientifically appropriate pitch counts, Japan-US management philosophy differences, and tactical impacts.
In no other major sport does the home team always attack last. Why does baseball assign the home team to bat in the bottom of each inning, and does batting second actually confer a measurable advantage?
Why nine innings? Soccer has 90 minutes, basketball has 48. Is there a rationale behind baseball's nine? Early baseball wasn't always nine innings. Tracing the evolution reveals a surprising path to the number we take for granted.
Is an intentional walk cowardice or strategy? This article analyzes the history of intentional walks in NPB, their statistical break-even point, and the impact of the no-pitch intentional walk rule.
A comprehensive look at npb's foreign player quota - how import strategies shape pennant races, from evolution of the foreign player quota to the quota expan..
Traces the evolution of NPB stadium security, covering foul ball accident prevention, bag checks, facial recognition trials, and spectator incident response.
El balk es la regla menos comprendida del béisbol. Las Reglas Oficiales enumeran 13 condiciones de balk, pero la interpretación varía según el árbitro e incluso los jugadores tienen dificultades para explicarlas. ¿Por qué el balk es tan ambiguo?
An analysis of the evolution of tie game rules and extra inning regulations in NPB. This article examines how rule changes from unlimited extra innings to the 12-inning limit have affected pennant races and game operations.
Un análisis de la propuesta del draft internacional discutida entre NPB y MLB. Este artículo examina el estado actual de la competencia global por el talento, los desafíos en el diseño del sistema y el impacto en la estrategia internacional de NPB.
An analysis of the pitch clock discussion in NPB. This article examines the effects of MLB's implementation, NPB's consideration status, and the debate surrounding game time reduction versus baseball's essence.
Un análisis del debate sobre la regla de misericordia en NPB. Este artículo examina su implementación en el béisbol amateur, los argumentos a favor de su introducción en el béisbol profesional y el debate en torno a la dignidad de los jugadores y los derechos de los espectadores.
An in-depth analysis of transfer window proposal - activating npb trades, exploring the current state of npb trades - why so few? and challenges and expected..
Examinando la introducción e implementación de los protocolos de conmoción cerebral en NPB desde las medidas especiales de 2017 hasta el presente, analizando la importancia y los desafíos de las reformas institucionales con casos específicos y comparaciones internacionales.
A detailed look at NPB's player pension system established in 1959, its abolition in 2011, and the transition to lump-sum retirement payments and individual defined-contribution plans, with specific payout figures.
Quantifies the effects of MLB 2023 shift-ban rules and analyzes the key issues and potential impact of adopting similar regulations in NPB.
After two strikes, a batter can foul off pitches indefinitely without striking out. Why? The answer involves a time when fouls didn't count as strikes at all, and the current rule is a historical compromise.
Ocho de los nueve jugadores defensivos miran hacia el home. Solo el receptor mira en la dirección opuesta, hacia el lanzador, compartiendo el mismo punto de vista que los aficionados detrás del home. Esta orientación invertida convierte al receptor en la posición más singular del béisbol.
When a batter hits a ground ball and sprints to first, they run without watching where the ball went. Baseball is the only sport where players run away from their own play. Why? The answer is built into the field's geometry.
An analysis of the history and evolution of the umpire system in NPB. This article examines umpire training systems, the evolution of officiating technology, the introduction of replay review, and debates over balancing umpire authority with player rights.
Un análisis de la evolución de las reglas de transferencia internacional entre la NPB y la MLB. Este artículo examina el nacimiento y la revisión del sistema de posteo, la historia de las negociaciones entre Japón y Estados Unidos, y los debates sobre el equilibrio entre los derechos de los jugadores y los intereses de los equipos.
The distance between bases is 90 feet (27.43 meters), unchanged since the 1840s. One meter longer and infield hits would vanish. One meter shorter and ground-ball outs would nearly disappear. Ninety feet is the miraculous equilibrium where human running speed and throwing speed are perfectly balanced.
Baseball players wear a glove on only one hand. Two gloves would make catching easier, so why not? 'Because you need to throw' is only half the answer. The real reason is embedded in baseball's fundamental motion design.
An analysis of the evolution of roster sizes and registration systems in NPB. This article examines historical changes in roster limits and active player registration, and their impact on team strategy.
An analysis of the history and challenges of the waiver system in NPB. This article examines its relationship with the draft system, comparison with MLB's waiver system, and key issues in system design for achieving competitive balance.
Un análisis de la historia y el impacto del sistema de agentes libres en NPB. Este artículo examina la evolución desde su introducción en 1993 hasta el presente, la expansión de los derechos de los jugadores y sus efectos en el equilibrio competitivo.
An in-depth analysis of the introduction of replay review - the coexistence of technology and umpires, exploring umpire error issues before video review and ..
Un análisis integral de la historia de la regla del DH - las diferencias entre ligas y el debate sobre la unificación, desde la introducción de la regla del DH - la decisión de la Liga del Pacífico hasta el futuro de la regla del DH y su impacto en NPB.
An in-depth analysis of analysis of npb's salary system - the salary cap debate, exploring characteristics of npb's salary system and alternative proposals a..
An in-depth analysis of the history of the reserve clause - player rights and team control, exploring the establishment of the reserve system and player rest..
Un análisis en profundidad de la regla de desempate introducida por NPB en 2018, examinando el debate del corredor fantasma a través de datos estadísticos, comparaciones con las reglas de entradas extra de MLB y perspectivas de jugadores y managers.
A data-driven examination of the long-running debate over extending the designated hitter rule, adopted by the Pacific League in 1975, to the Central League.