There have been 20

managers Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a government body. It is the art and science of managing resources of the business. Management includes the activities ...

in the history of the

Seattle Mariners The Seattle Mariners are an American professional baseball team based in Seattle. They compete in Major League Baseball (MLB) as a member club of the American League (AL) West division. The team joined the American League as an expansion team ...

Major League Baseball Major League Baseball (MLB) is a professional baseball organization and the oldest major professional sports league in the world. MLB is composed of 30 total teams, divided equally between the National League (NL) and the American League (AL) ...

(MLB) franchise. The Mariners franchise was formed in

1977 Events January * January 8 – Three bombs explode in Moscow within 37 minutes, killing seven. The bombings are attributed to an Armenian separatist group. * January 10 – Mount Nyiragongo erupts in eastern Zaire (now the Democrati ...

as a member of the American League.

Darrell Johnson Darrell Dean Johnson (August 25, 1928 – May 3, 2004) was an American Major League Baseball catcher, coach, manager and scout. As a manager, he led the 1975 Boston Red Sox to the American League pennant, and was named "Manager of the Year" by ...

was hired as the first Mariners manager, serving for just over three seasons before being replaced during the

1980 Events January * January 4 – U.S. President Jimmy Carter proclaims a United States grain embargo against the Soviet Union, grain embargo against the USSR with the support of the European Commission. * January 6 – Global Positioning Syst ...

season. In terms of tenure,

Lou Piniella Louis Victor Piniella ( usually ; born August 28, 1943) is a former professional baseball player and manager. An outfielder, he played 16 seasons in Major League Baseball (MLB) with the Baltimore Orioles, Cleveland Indians, Kansas City Royals and ...

has managed more games and seasons than any other coach in their franchise history. He managed the Mariners to four playoff berths (

1995 File:1995 Events Collage V2.png, From left, clockwise: O.J. Simpson is acquitted of the murders of Nicole Brown Simpson and Ronald Goldman from the year prior in "The Trial of the Century" in the United States; The Great Hanshin earthquake strike ...

1997 File:1997 Events Collage.png, From left, clockwise: The movie set of ''Titanic'', the highest-grossing movie in history at the time; ''Harry Potter and the Philosopher's Stone'', is published; Comet Hale-Bopp passes by Earth and becomes one of ...

2000 File:2000 Events Collage.png, From left, clockwise: Protests against Bush v. Gore after the 2000 United States presidential election; Heads of state meet for the Millennium Summit; The International Space Station in its infant form as seen from ...

and

2001 The September 11 attacks against the United States by Al-Qaeda, which killed 2,977 people and instigated the global war on terror, were a defining event of 2001. The United States led a multi-national coalition in an invasion of Afghanistan ...

), led the team to the

American League Championship Series The American League Championship Series (ALCS) is a best-of-seven playoff and one of two League Championship Series comprising the penultimate round of Major League Baseball's (MLB) postseason. It is contested by the two winners of the America ...

in 1995, 2000 and 2001, and won the

Manager of the Year Manager of the Year may refer to: * Major League Baseball Manager of the Year Award * League Managers Association Manager of the Year * Premier League Manager of the Season The Premier League Manager of the Season is an annual association footba ...

award in 1995 and 2001. Until 2022, Piniella was the only manager in Mariners history to lead a team into the playoffs, with one of those times after a 116-win season, tying the record for most wins in a season. None of the previous managers had made it to the playoffs before. Piniella, however, managed the team in 34 playoff games, winning 15 and losing 19.

Dick Williams Richard Hirschfeld Williams (May 7, 1929 – July 7, 2011) was an American left fielder, third baseman, manager, coach and front-office consultant in Major League Baseball. Known especially as a hard-driving, sharp-tongued manager from 1967 to ...

is the only Mariners manager to have been inducted into the

Baseball Hall of Fame The National Baseball Hall of Fame and Museum is a history museum and hall of fame in Cooperstown, New York, operated by private interests. It serves as the central point of the history of baseball in the United States and displays baseball ...

. There have been nine interim managers in Mariners history. In 1980, manager Darrell Johnson was replaced by

Maury Wills Maurice Morning Wills (October 2, 1932 – September 19, 2022) was an American professional baseball player and manager. He played in Major League Baseball (MLB) primarily for the Los Angeles Dodgers from 1959 through 1966 and the latter part of ...

. In

1981 Events January * January 1 ** Greece enters the European Economic Community, predecessor of the European Union. ** Palau becomes a self-governing territory. * January 10 – Salvadoran Civil War: The FMLN launches its first major off ...

, manager

Rene Lachemann Rene George Lachemann (born May 4, 1945) is a retired American professional baseball coach, catcher and manager. He spent 33 years in Major League Baseball, including service as the manager of the Seattle Mariners (1981–83), Milwaukee Brewers (1 ...

replaced Maury Wills. In

1983 The year 1983 saw both the official beginning of the Internet and the first mobile cellular telephone call. Events January * January 1 – The migration of the ARPANET to TCP/IP is officially completed (this is considered to be the beginning ...

, Lachemann was relieved by

Del Crandall Delmar Wesley Crandall (March 5, 1930May 5, 2021) was an American professional baseball player and manager. He was born in Ontario, California. Crandall played as a catcher in Major League Baseball and spent most of his career with the Boston / ...

. Crandall did not last a full season either, as

Chuck Cottier Charles Keith Cottier (born January 8, 1936) is a former second baseman, manager, coach and scout in American Major League Baseball. Born in Delta, Colorado, Cottier graduated from Grand Junction High School, where he lettered in four sports � ...

took over his job in

1984 Events January * January 1 – The Bornean Sultanate of Brunei gains full independence from the United Kingdom, having become a British protectorate in 1888. * January 7 – Brunei becomes the sixth member of the Association of Southeast As ...

. By

1986 The year 1986 was designated as the International Year of Peace by the United Nations. Events January * January 1 **Aruba gains increased autonomy from the Netherlands by separating from the Netherlands Antilles. **Spain and Portugal enter ...

, Cottier was replaced with a temporary manager, Marty Martinez. After one game, the Mariners found Dick Williams to take over the role of manager. He in turn was replaced by Jim Snyder in 1988. In

2007 File:2007 Events Collage.png, From top left, clockwise: Steve Jobs unveils Apple's first iPhone; TAM Airlines Flight 3054 overruns a runway and crashes into a gas station, killing almost 200 people; Former Pakistani Prime Minister Benazir Bhutto ...

, manager

Mike Hargrove Dudley Michael Hargrove (born October 26, 1949) is a former Major League Baseball first baseman and manager. He is currently employed as an advisor with the Cleveland Guardians. Hargrove batted and threw left-handed. He played for the Texas Rang ...

resigned in a surprise move amidst a winning streak, citing increased difficulty in putting forth the same effort he demanded of his players. Hargrove was replaced with bench coach John McLaren midseason. A year later, in

2008 File:2008 Events Collage.png, From left, clockwise: Lehman Brothers went bankrupt following the Subprime mortgage crisis; Cyclone Nargis killed more than 138,000 in Myanmar; A scene from the opening ceremony of the 2008 Summer Olympics in Beijing ...

, the Mariners front office decided McLaren was not performing by their standards, and was fired and replaced by interim manager

Jim Riggleman James David Riggleman (born November 9, 1952) is an American former Major League Baseball (MLB) manager and bench coach who coached with several teams between 1989 and 2019. He is currently the manager for the Billings Mustangs of the independen ...

. New

general manager A general manager (GM) is an executive who has overall responsibility for managing both the revenue and cost elements of a company's income statement, known as profit & loss (P&L) responsibility. A general manager usually oversees most or all ...

Jack Zduriencik John A. “Jack” Zduriencik (; born January 11, 1951) is an American radio broadcaster and former professional baseball executive, scout, and player. He currently works as a radio host for KDKA-FM, which is affiliated with the Pittsburgh Pirate ...

hired

Don Wakamatsu Wilbur Donald Wakamatsu (born February 22, 1963) is an American former professional baseball player, scout, coach, and manager. Wakamatsu was drafted in the 11th round of the 1985 Major League Baseball draft by the Cincinnati Reds. He played as a ...

as skipper for the

2009 File:2009 Events Collage V2.png, From top left, clockwise: The vertical stabilizer of Air France Flight 447 is pulled out from the Atlantic Ocean; Barack Obama becomes the first African American to become President of the United States; 2009 Iran ...

season; after finishing the season with a .525

winning percentage In sports, a winning percentage is the fraction of games or matches a team or individual has won. The statistic is commonly used in standings or rankings to compare teams or individuals. It is defined as wins divided by the total number of match ...

, the team's poor performance coupled with off-field issues led to Wakamatsu's firing on August 9, 2010.

Daren Brown Daren Dwayne Brown (born June 13, 1967) is an American professional baseball manager, who spent much of the 2013 season as the third base coach of the Seattle Mariners of Major League Baseball (MLB). The son of big leaguer Paul Brown and nephe ...

, who was the manager of the Mariners' Triple-A affiliate, the

Tacoma Rainiers The Tacoma Rainiers are a Minor League Baseball team of the Pacific Coast League (PCL) and the Triple-A affiliate of the Seattle Mariners. They are located in Tacoma, Washington, and play their home games at Cheney Stadium, which opened in 1960 ...

, managed the Mariners for the remainder of the 2010 season.

Eric Wedge Eric Michael Wedge (born January 27, 1968) is an American former baseball Major League Baseball (MLB) catcher and manager. As a player, Wedge attended Northrop High School in Fort Wayne and played on the school's state champion baseball team in ...

was hired to manage the team for the 2011 to 2013 seasons.

Lloyd McClendon Lloyd Glenn McClendon (born January 11, 1959) is an American former professional baseball player, coach and manager. He played in Major League Baseball (MLB) as an outfielder from 1987 to 1994 for the Pittsburgh Pirates, Seattle Mariners and the ...

was hired as the Mariners' manager on November 7, 2013.

Key

''Statistics are accurate through the end of the 2023 Major League Baseball Season.''

Managers

Image:Lou Piniella - 2008 - cropped.jpg,

, manager of the Mariners from 1993 to 2002. Also 1995 and 2001 Manager of the Year Award. Image:MikeHargrove.jpg, Mike Hargrove, the manager of the Mariners from 2005 to 2007 Image:Eric Wedge.jpg, Eric Wedge, manager of the Mariners from 2011 to 2013.

Notes

* A running total of the number of managers of the Mariners. Thus any manager who has had two or more terms as manager is only counted once.

References

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Managers Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a government body. It is the art and science of managing resources of the business. Management includes the activities ...