In baseball, the umpire is the person charged with officiating the game, including beginning and ending the game, enforcing the rules of the game and the grounds, making judgment calls on plays, and handling disciplinary actions. The term is often shortened to the colloquial form ump. They are also sometimes nicknamed blue due to the traditional color of the uniform worn by umpires. Although games were often officiated by a sole umpire in the formative years of the sport, since the turn of the 20th century, officiating has been commonly divided among several umpires, who form the umpiring crew. The position is analogous to that of a referee in many other sports.
Gerald Sidney Davis is an American former umpire in Major League Baseball. He worked in the National League from 1982 to 1999 and in Major League Baseball from 2000 to 2021. He was promoted to crew chief in 1999. Davis worked a total of 151 post season games,the most in MLB history. He umpired six World Series, eleven League Championship Series and thirteen League Division Series. He also worked in the All-Star Game four times.Davis was chosen to work a Special Event in an All Time record 24 consecutive seasons. He wore uniform number 12 throughout his career.
Jose Alexander Cora is a Puerto Rican baseball manager and former infielder who is the manager of the Boston Red Sox in Major League Baseball (MLB). He previously played in MLB for 14 seasons with the Red Sox, Los Angeles Dodgers, Cleveland Indians, New York Mets, Texas Rangers, and Washington Nationals. After retiring as a player, Cora served as the bench coach for the Houston Astros when they won their first World Series title in 2017. Cora was named Boston's manager the following season, winning a franchise-best 108 games and leading the team to victory in the 2018 World Series. He is the fifth MLB manager to win the World Series in his first season and the first Puerto Rican manager of a World Series-winning team.
Ángel Hernández is a Cuban-American former professional baseball umpire. He worked in the National League from 1991 to 1999 and worked throughout Major League Baseball (MLB) from 2000 until his retirement in May 2024. Hernández was involved in several controversial incidents and was widely criticized by players, coaches, and fans throughout his career.
Edward George Barrett is an American retired Major League Baseball umpire. He joined the American League's staff in 1994, and worked throughout both major leagues from 2000 until his retirement in 2022. Promoted to crew chief in 2013, Barrett worked in 33 play-off series, including five World Series. He retired following the 2022 season.
Michael John Winters is an American former umpire in Major League Baseball who has worked in the National League from 1988 to 1999 and throughout both major leagues from 2000 to 2019, wearing number 33. For the 2011 season, Winters was named a crew chief following the retirements of Jerry Crawford, Mike Reilly, and Chuck Meriwether.
Mark Patrick Wegner is an American Major League Baseball umpire. He worked in the National League from 1998 to 1999, and throughout both major leagues since 2000. He was promoted to Crew Chief for the 2018 MLB season when Dale Scott retired after the 2017 MLB season.
Philip Cuzzi is an American professional baseball umpire in Major League Baseball (MLB). He worked as a reserve umpire in the National League (NL) from 1991 to 1993 and returned to the NL in 1999. Since 2000, he has worked in both major leagues. Cuzzi wore number 99 when his career started; he now wears number 10.
Fieldin Henry Culbreth III is an American former umpire in Major League Baseball (MLB). He worked in the American League from 1993 to 1999 and in both major leagues from 2000 until his retirement in 2021. Culbreth was promoted to crew chief prior to the 2013 season. Culbreth wore number 42 while he was an American League umpire, then changed to 25 in 2000 after the MLB umpires were unified into one crew.
Larry Wayne Vanover is an American retired Major League Baseball umpire. Vanover worked in the National League from 1991 to 1999 and in Major League Baseball from 2002 to 2024. Vanover has umpired two All Star Games, and in the 2016 World Series. He was promoted to crew chief in 2015. Vanover wore sleeve number 28 during his National League tenure, then changed to 27 after his return to the MLB umpiring staff in 2002. Vanover became the oldest umpire in major league history during the 2024 season.
Samuel Woodford Holbrook is an American retired Major League Baseball umpire. He made his MLB debut in 1996 and was promoted to crew chief in 2017. Holbrook worked the World Series in 2010, 2016, and 2019. He retired following the 2022 season.
Robert Paul Drake is an American umpire in Major League Baseball. He was named to the Major League staff in 2010, and wears uniform number 8.
Victor Joseph Carapazza is an American Major League Baseball umpire. He wears uniform number 19, and previously wore uniform number 85.
Michael William Muchlinski is an American Major League Baseball umpire. He umpired his first Major League game on April 24, 2006, and was officially hired by MLB prior to the 2014 season.
Quinn Wolcott is an American umpire in Major League Baseball. He wears number 81.
Carlos Torres Nuldis is a Venezuelan professional umpire in Major League Baseball (MLB). He made his major league debut in 2015.
Ryan Benjamin Blakney is an American Major League Baseball (MLB) umpire. He has umpired in MLB since 2015.
Christopher Robert Segal is an American Major League Baseball (MLB) umpire. He wears number 96. He made his MLB umpiring debut in 2014.
Nicolas James Lentz is an American umpire in Major League Baseball. He made his debut on April 20, 2016, in Miami. He wears number 59, which was most recently worn by former umpire Jon Byrne.
Erich Bacchus is an American professional baseball umpire. He has been an umpire in Major League Baseball since 2020 and was promoted to the full-time umpiring staff in 2023. Bacchus wears uniform number 12.
