The award is voted on by 28 members of the Baseball Writers Association of America. Each places a vote for first, second, and third place among the managers of each league. The formula used to calculate the final scores is Score = 5F + 3S + T, where F is the number of first place votes, S is second place votes, and T is third place votes. The manager with the highest score in each league wins the award.
Bobby Cox became the first manager to win the award in both leagues, with the Toronto Blue Jays in 1985 and the Atlanta Braves in 1991. In 1998, Tony La Russa became the second, having won the award with the Chicago White Sox in 1983, the Oakland Athletics in 1988 and 1992, and the St. Louis Cardinals in 2002. La Russa has won the most awards with four. Dusty Baker is second with three awards while managing the San Francisco Giants (1993, 1997, 2000).
Five teams remain yet to have a Manager of the Year: Cleveland Indians, Milwaukee Brewers, New York Mets, Tampa Bay Devil Rays, and Arizona Diamondbacks.
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| Year | Manager | Team |
|---|---|---|
| 1983 | Tony La Russa (1) | Chicago White Sox |
| 1984 | Sparky Anderson (1) | Detroit Tigers |
| 1985 | Bobby Cox (1) | Toronto Blue Jays |
| 1986 | John McNamara | Boston Red Sox |
| 1987 | Sparky Anderson (2) | Detroit Tigers |
| 1988 | Tony La Russa (2) | Oakland Athletics |
| 1989 | Frank Robinson | Baltimore Orioles |
| 1990 | Jeff Torborg | Chicago White Sox |
| 1991 | Tom Kelly | Minnesota Twins |
| 1992 | Tony La Russa (3) | Oakland Athletics |
| 1993 | Gene Lamont | Chicago White Sox |
| 1994 | Buck Showalter | New York Yankees |
| 1995 | Lou Piniella (1) | Seattle Mariners |
| 1996 | Joe Torre (1) Johnny Oates | New York Yankees Texas Rangers |
| 1997 | Davey Johnson | Baltimore Orioles |
| 1998 | Joe Torre (2) | New York Yankees |
| 1999 | Jimy Williams | Boston Red Sox |
| 2000 | Jerry Manuel | Chicago White Sox |
| 2001 | Lou Piniella (2) | Seattle Mariners |
| 2002 | Mike Scioscia | Anaheim Angels |
| 2003 | Tony Peña | Kansas City Royals |
| Year | Manager | Team |
|---|---|---|
| 1983 | Tommy Lasorda (1) | Los Angeles Dodgers |
| 1984 | Jim Frey | Chicago Cubs |
| 1985 | Whitey Herzog | St. Louis Cardinals |
| 1986 | Hal Lanier | Houston Astros |
| 1987 | Buck Rodgers | Montreal Expos |
| 1988 | Tommy Lasorda (2) | Los Angeles Dodgers |
| 1989 | Don Zimmer | Chicago Cubs |
| 1990 | Jim Leyland (1) | Pittsburgh Pirates |
| 1991 | Bobby Cox (2) | Atlanta Braves |
| 1992 | Jim Leyland (2) | Pittsburgh Pirates |
| 1993 | Dusty Baker (1) | San Francisco Giants |
| 1994 | Felipe Alou | Montreal Expos |
| 1995 | Don Baylor | Colorado Rockies |
| 1996 | Bruce Bochy | San Diego Padres |
| 1997 | Dusty Baker (2) | San Francisco Giants |
| 1998 | Larry Dierker | Houston Astros |
| 1999 | Jack McKeon (1) | Cincinnati Reds |
| 2000 | Dusty Baker (3) | San Francisco Giants |
| 2001 | Larry Bowa | Philadelphia Phillies |
| 2002 | Tony La Russa (4) | St. Louis Cardinals |
| 2003 | Jack McKeon (2) | Florida Marlins |