Randall David Johnson (born September 10, 1963), nicknamed "The Big Unit", is an American former baseball pitcher who played 22 seasons in Major League Baseball (MLB) from 1988 to 2009 for six teams.
 He played primarily for the Seattle Mariners and the Arizona Diamondbacks.
 His 303 career victories rank as the fifth-most by a left-hander in MLB history, while his 4,875 strikeouts place him second all-time behind Nolan Ryan and are the most by a left-hander.
 He holds five of the seven highest single-season strikeout totals by a left-hander in modern history.
 Johnson won the Cy Young Award five times, second only to Roger Clemens' seven, and he is one of two pitchers (the other being Greg Maddux) to win the award four consecutive times (1999–2002).
 In 1999, he joined Pedro Martínez and Gaylord Perry in the rare feat of winning the award in both the American and National Leagues.
 He is also one of five pitchers to pitch no-hitters in both leagues.
 On May 18, 2004, at the age of forty, Johnson became the oldest pitcher in major league history to throw a perfect game.
 He is also one of eighteen pitchers in history to record a win against all 30 MLB franchises.
The 1995 World Series was the 91st edition of Major League Baseball's championship series, a best-of-seven playoff played between the National League (NL) champion Atlanta Braves and the American League (AL) champion Cleveland Indians.
 The Braves won in six games to capture their third World Series championship in franchise history (along with 1914 in Boston and 1957 in Milwaukee), making them the first team to win three crowns in three different cities.
 This was also Cleveland's first Series appearance in 41 years and marked the resumption of the Fall Classic after the previous year's Series was canceled due to a players' strike.
John Andrew Smoltz (born May 15, 1967), nicknamed "Smoltzie" and "Marmaduke," is an American former baseball pitcher who played 22 seasons in Major League Baseball from 1988 to 2009, all but the last year with the Atlanta Braves.
 An eight-time All-Star, Smoltz was part of a celebrated trio of starting pitchers, along with Greg Maddux and Tom Glavine, who propelled Atlanta to perennial pennant contention in the 1990s, highlighted by a championship in the 1995 World Series.
 He won the National League (NL) Cy Young Award in 1996 after posting a record of 24–8, equaling the most victories by an NL pitcher since 1972.
 Though predominantly known as a starter, Smoltz was converted to a reliever in 2001 after his recovery from Tommy John surgery, and spent four years as the team's closer before returning to a starting role.
 In 2002, he set the NL record with 55 saves and became only the second pitcher in history (joining Dennis Eckersley) to record both a 20-win season and a 50-save season.
 He is the only pitcher in major league history to record both 200 wins and 150 saves.
Gregory Alan Maddux (born April 14, 1966), nicknamed "Mad Dog" and "The Professor", is an American former Major League Baseball (MLB) pitcher.
 Maddux is best known for his accomplishments while playing for the Atlanta Braves and the Chicago Cubs .
 With the Braves, he won the 1995 World Series over the Cleveland Indians.
 The first to achieve a number of feats and records, he was the first pitcher in major league history to win the Cy Young Award for four consecutive years (1992–1995), matched by only one other pitcher, Randy Johnson.
 During those four seasons, Maddux had a 75–29 record with a 1.98 earned run average (ERA), while allowing less than one baserunner per inning.
Timothy Earl Flannery (born September 29, 1957) is a former Major League Baseball player who spent eleven seasons with the San Diego Padres, from 1979 to 1989 .
 He was the 3rd base coach of the San Francisco Giants from 2007–2014.
 He is also the nephew of former Major League Baseball player Hal Smith.
Rubén Amaro Jr. (born February 12, 1965) is an American former professional baseball player and General Manager who is the first base coach of the Boston Red Sox of Major League Baseball, as of the 2016 season.
 It is his first coaching job.
 He played in Major League Baseball as an outfielder from 1991 to 1998.
 Amaro was named the General Manager of the Philadelphia Phillies on November 3, 2008, succeeding Pat Gillick and remained in that position until September 10, 2015.
 He is the son of the late former Major League Baseball player Rubén Amaro Sr.
Joseph Michael Martin (born December 3, 1958) is a former Major League Baseball catcher.
 He played eight games for the Chicago Cubs in , getting just one hit, a double in 13 at bats.
 He holds the distinction of catching the final out of Greg Maddux's first win, a complete game victory over Cincinnati on September 7, having initially entered the game as a pinch-runner for Jody Davis.
 1986 was Martin's last professional season after nine years in minor league baseball.
Eduardo Rafael Pérez (born May 4, 1968) is a Venezuelan-American former professional baseball player and current First Base coach.
 He played in Major League Baseball as a catcher for the Atlanta Braves, Cleveland Indians and the Milwaukee Brewers.
 He batted and threw right-handed.
 Pérez is the current bullpen coach for the Atlanta Braves.
 He was known for being pitcher Greg Maddux's personal catcher during his tenure as a player with the Braves.
The World Series, the modern championship series of Major League Baseball, began in 1903, and was established as an annual event in 1905.
 Before the formation of the American Association (AA), there were no playoff rounds—all championships went to the team with the best record at the end of the season.
 In the initial season of the National League (NL) in 1876, there was controversy as to which team was the champion: the Chicago White Stockings, who had the best overall record (52–14), or the St. Louis Brown Stockings (45–19), who were the only team to have a winning record against every other franchise in the league.
 The teams agreed to play a five-game "Championship of the West" series, won by St. Louis, 4 games to 1.
 Beginning in 1884, the championship series between the National League and the American Association were promoted and referred to as the "World's Championship Series" (WCS), or "World's Series" for short; however, they are not officially recognized by Major League Baseball as part of World Series history.
 Though early publications, such as Ernest Lanigan's "Baseball Cyclopedia" and Turkin and Thompson's "Encyclopedia of Baseball", listed the 19th-century games on an equal basis with those of the 20th century, "Sporting News" publications about the World Series, which began in the 1920s, ignored the 19th-century games, as did most publications about the Series after 1960.
 Major League Baseball, in general, regards 19th-century events as a prologue to the modern era of baseball, which is defined by the emergence of the two present major leagues.
The Big Three was a trio of Major League Baseball starting pitchers for the Atlanta Braves from 1993-2002.
 It consisted of Greg Maddux, Tom Glavine, and John Smoltz.
 The Big Three was one of the best trio of pitchers in Major League Baseball.
 They combined to win six National League Cy Young Awards in the 1990s and helped lead the Atlanta Braves to a 1995 World Series win.
 Each member of the Big Three has had their jersey retired by the Atlanta Braves and has been inducted into the Baseball Hall of Fame.

Question: Greg Maddux is a former Major League baseball player who won the 91st edition of Major League Baseball's champion series in how many games, capturing their third championship?
Answer: six