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| Instant replay (baseball) | |
|---|---|
| Name | Instant replay (baseball) |
| Introduced | 2008 (expanded 2014) |
| Governing body | Major League Baseball, Baseball Hall of Fame, Baseball Rule |
| Formats | challenge system, Video assistant referee |
Instant replay (baseball) is a system used in Major League Baseball to review on-field umpire decisions using video and other technological aids. It evolved through interactions among organizations such as the National Baseball Hall of Fame and Museum, the Major League Umpires Association, and league offices including the Office of the Commissioner of Baseball under commissioners like Bud Selig and Rob Manfred. The procedure affects franchises such as the New York Yankees, Los Angeles Dodgers, Boston Red Sox, and Chicago Cubs and has been applied during events including the World Series, All-Star Game, and postseason.
The development of replay in Major League Baseball traces to televised controversies involving teams like the New York Mets, San Francisco Giants, and Atlanta Braves and games broadcast by networks such as FOX Broadcasting Company, ESPN, and TBS (American TV network). Early experiments occurred in venues including Dodger Stadium, Fenway Park, and Wrigley Field amid debates tied to figures like Joe Torre, Tony La Russa, and Joe West. Formal adoption began after high-profile incidents during seasons overseen by Bud Selig and policy negotiations with the Major League Umpires Association and labor actors such as the MLB Players Association. Initial limited replay was authorized in 2008 for boundary calls at venues including RFK Stadium and later expanded in 2014 during the tenure of Rob Manfred following pilot programs and analyses by committees involving former umpires like Tim Tschida and technologists from Hawk-Eye Innovations.
Current rules permit managers from clubs such as the St. Louis Cardinals, Houston Astros, Cleveland Guardians, and Philadelphia Phillies to challenge specific calls under protocols established by the Official Baseball Rules and the MLB Operations Department. The system distinguishes reviewable plays including home run boundary, force play, tag play, and spectator interference, while excluding judgment calls like balls and strikes and most checked swings, an approach influenced by precedents from organizations such as the International Baseball Federation and tournaments like the World Baseball Classic. Time limits, challenge limits, and crew chief authority derive from directives issued by commissioners like Rob Manfred and are implemented across ballparks owned by organizations such as Yankee Global Enterprises and FieldTurf LLC venues.
Reviews are conducted from centralized facilities staffed by former umpires and analysts located in operations centers overseen by Major League Baseball and using systems provided by vendors like Hawk-Eye Innovations, Statcast, and broadcast partners including FOX Sports and ESPN. Camera arrays at stadiums such as Coors Field, PNC Park, and Citizens Bank Park feed angles analyzed by officials who consult playback and tools similar to slow motion and frame-by-frame inspection; communication channels involve stadium replay booths, umpires such as crew chiefs and crew members including Angel Hernandez or Joe West historically, and the home-plate umpire. The protocol integrates data from pitch-tracking systems developed by companies related to TrackMan and network feeds from broadcasters like TBS (American TV network) to render rulings communicated via headset and electronic signals.
The availability of replay has altered managerial tactics for leaders like Joe Maddon, Tony La Russa, and Torey Lovullo, affecting decisions about challenges, bullpen usage, and base-running strategies for teams including the Oakland Athletics, Texas Rangers, and Kansas City Royals. Statistical departments within clubs such as the Chicago White Sox and analytics groups influenced by advocates like Bill James and institutions like Oakland Athletics front office use replay metrics to advise on challenge probabilities and win expectancy. Game length, pacing, and fan experience at venues like Camden Yards and Target Field have shifted, prompting rule adjustments from commissioners and technical refinements from providers including Hawk-Eye Innovations.
Critics including media outlets such as The New York Times, The Washington Post, and commentators like Bill James and Peter Gammons have argued replay can interrupt flow, over-centralize decision-making in offices located in cities such as New York City and Secaucus, New Jersey, and reduce the authority of umpires from organizations like the Major League Umpires Association. Controversies involving high-profile umpires such as Angel Hernandez or calls in marquee series like the 2016 World Series and 2019 ALCS have intensified debates about consistency, technology reliability from vendors like Hawk-Eye Innovations and TrackMan, and equity for smaller markets including the Tampa Bay Rays.
Landmark replay moments involve plays featuring players like Kirk Gibson, David Ortiz, Derek Jeter, Mike Piazza, and Ichiro Suzuki in games broadcast by FOX Sports and ESPN. Examples include postseason reversals in the 2014 ALDS and pivotal overturned home run rulings during the 2015 World Series and 2017 NLDS where franchises such as the New York Mets and Los Angeles Dodgers were directly affected. Other notable incidents occurred in rivalry games like Yankees–Red Sox rivalry matchups and internationally during events such as the World Baseball Classic.
Analyses by sabermetric groups including researchers affiliated with Baseball Prospectus, FanGraphs, and academics at institutions like Sloan School of Management indicate review overturn rates, challenge success percentages, and average review durations vary by season, team, and play type. Data aggregators such as Retrosheet, Baseball-Reference, and proprietary MLB datasets show trends in manager challenge usage among franchises like the Los Angeles Angels, San Diego Padres, and Miami Marlins, and illustrate impacts on win probability and run expectancy that inform policy adjustments by commissioners including Rob Manfred.
Category:Baseball rules Category:Major League Baseball