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 nicknames as blue due to the tradtional 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.
Margaret Carolyn Schott was an American baseball executive. Serving as managing general partner, president and CEO of Major League Baseball's Cincinnati Reds franchise from 1984 to 1999, she was the second woman to own a North American major-league team without inheriting it, after New York Mets founder Joan Whitney Payson.
Dale Allan Scott is an American former umpire in Major League Baseball. He worked in the American League from 1986 to 1999, and officiated in both leagues from 2000 until his retirement after the 2017 season. He became a crew chief in 2001. He wore uniform number 39 his first two years and number 5, previously worn in the AL by Russ Goetz, thereafter.
Jeffrey Brian Nelson is an American former professional baseball umpire in Major League Baseball (MLB), who was named to the National League (NL) staff prior to the 1999 season, and worked throughout both major leagues from 2000 until his retirement after the 2023 regular season.
Douglas Leon Eddings is an American professional umpire in Major League Baseball.
Joseph Henry West, nicknamed "Cowboy Joe" or "Country Joe", is an American former baseball umpire. He worked in Major League Baseball (MLB) from 1976 to 2021, umpiring an MLB-record 43 seasons and 5,460 games.
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.
John Francis Hirschbeck is a former umpire for Major League Baseball. He worked in the American League from 1984 to 1999 and worked in both leagues from 2000 to 2016. He was a crew chief at the time of his retirement, and wore uniform number 17 throughout his career. Hirschbeck announced his retirement following the 2016 season. In 2000, Hirschbeck was elected as the first president of the newly certified World Umpires Association, a position he held until 2009.
John Patrick McSherry was an American umpire in Major League Baseball who worked in the National League from 1971 until his death. McSherry wore uniform number 9 when he entered the National League, then wore number 10 from 1979 through the rest of his career. A respected arbiter, he was one of several umpires who were noticeably obese. McSherry was officially listed at 6 feet 2 inches (1.88 m) and 328 pounds (149 kg). On April 1, 1996, the opening day of the 1996 Major League Baseball season, McSherry suffered a fatal heart attack while calling a game in Cincinnati.
Timothy Reid McClelland is an American former umpire in Major League Baseball who worked in the American League from 1983 to 1999 and throughout both leagues from 2000 through the 2013 season. He called many important games, from post-season games to the George Brett "Pine Tar" game in 1983. He was the plate umpire for the Sammy Sosa corked bat game on June 3, 2003, when the Chicago Cubs hosted the Tampa Bay Devil Rays at Wrigley Field. He wore uniform number 36 after his promotion to the AL, and kept the number when Major League Baseball merged the American and National League umpiring staffs in 2000.
Edward Michael Montague is an American former umpire in Major League Baseball. He worked in the National League in 1974 and from 1976 to 1999, and officiated throughout both leagues between 2000 and 2009. The most senior active umpire in the major leagues at the time of his retirement, he wore uniform number 11 throughout his career. His 4,369 total games ranked eighth in major league history when he retired, and he is one of only three umpires to serve as crew chief for the World Series four times.
Lazaro Antonio Díaz Sr. is an American umpire in Major League Baseball wearing number 63, a reference to his year of birth. He joined the American League's full-time staff in 1999, and has worked throughout both major leagues since 2000. Díaz was promoted to crew chief for the 2022 season, becoming the second full time Latino crew chief, after Alfonso Marquez.
Jeffrey William Kellogg is a retired Major League Baseball umpire who worked in the National League from 1991 to 1999 and throughout both major leagues from 2000 to 2019. He wore uniform number 8, formerly worn in the NL by Hall of Fame umpire Doug Harvey from 1962 to 1992.
The 1999 Major League Baseball All-Star Game was the 70th playing of the midsummer classic between the all-stars of the American League (AL) and National League (NL), the two leagues comprising Major League Baseball. The game was held on July 13, 1999, at Fenway Park in Boston, Massachusetts, the home of the Boston Red Sox of the American League.
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.
Paul Edward Nauert is an American retired Major League Baseball umpire. He worked in the National League from 1995 to 1999 and in Major League Baseball from 2002 until his retirement in 2022. Nauert worked the World Series in 2017.
James Norris Reynolds IV is a former American Major League Baseball umpire. He joined the major league staff in 1999 and was promoted to crew chief for the 2020 season. Reynolds wore uniform number 77. He retired following the 2022 season.
Major League Baseball (MLB) uses instant replay review to allow league officials to review certain types of plays in order to determine the accuracy of the initial call of the umpires on the field. Reviews may be initiated either by a team's manager with limitations or by the umpires themselves. All instant replay reviews are examined by umpires at the Replay Command Center in New York City, who have the final decision as to whether to uphold or overturn the initial call.
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.
Mark Christopher Carlson (born July 11, 1969) is an American umpire in Major League Baseball. He wore number 48 until the 2012 season, when his number changed to 6. He was promoted to crew chief for the 2021 season.
