Question: St. Louis Cardinals spent their ninth season at a stadium that has a seating capacity of how many spectators ?

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Hamilton Redbirds: The Hamilton Redbirds were a minor league baseball team that played in the New York–Penn League from 1988 to 1992.  They were affiliated with the St. Louis Cardinals and played their home games at Bernie Arbour Memorial Stadium in Hamilton, Ontario.  The Redbirds were founded in 1988, but the franchise itself was founded in 1958 as the Auburn Yankees.  It moved to Erie, Pennsylvania for the 1981 season, beginning its longtime affiliation with the St. Louis Cardinals.  The Erie Cardinals played at Ainsworth Field in Erie, Pennsylvania from 1981 to 1987.  The Erie Cardinals then relocated to Hamilton, Ontario to become the Hamilton Redbirds.  The Hamilton Redbirds set the all-time record for winning percentage by a St. Louis Cardinals minor league team at .651 in 1992, with a record of 56-20.  Future Major League players Keith Johns and Mike Gulan lead the offensive attack along with unsung centerfielder Brad Owens.  Lefty David Orlein and righty T.J. Mathews (en route to an MLB career) both posted a 10-1 mark, and closer Jamie Cochrane set a NY-Penn League saves record with 40.

Matt Kinzer: Matthew Roy Kinzer, (born June 17, 1963 in Indianapolis), is a former NFL punter and MLB pitcher.  He was drafted by the St. Louis Cardinals in the 2nd round of the 1984 amateur draft.  During 1987 NFL strike, he served one game as a punter for the Detroit Lions.  He recorded seven punts for a 34.0 yard average.  Kinzer begin his pro baseball career in the minor leagues playing from 1984 to 1989, He played for the Arkansas Travelers of the double A Texas League in 1984.  After stops in Springfield with the Cardinals of the class A Mid West League in 1985 and the St. Petersburg Cardinals of the class A Florida State League in 1986, he returned to the Arkansas Travelers in 1987 and 1988.  But in 1988 Kinzer also saw playing time in the Major Leagues with the St. Louis Cardinals.  In 1989 Kinzer played for triple A Louisville Cardinals of the American Association and also saw time with the St. Louis Cardinals.

2013 St. Louis Cardinals season: The St. Louis Cardinals 2013 season was the 132nd for the baseball team in St. Louis, Missouri, the 122nd season in the National League (NL), and the eighth at Busch Stadium III.  On Opening Day, April 1, the St. Louis Cardinals played the 20,000th game in franchise history against the Arizona Diamondbacks, dating back to the start of their American Association (AA) play in 1882.  Heading into the 2013 season, St. Louis had an all-time winning percentage of .518.

Busch Stadium: Busch Stadium, also referred to informally as "New Busch Stadium" or "Busch Stadium III", is a baseball park located in St. Louis, Missouri, and the home of the St. Louis Cardinals, the city's Major League Baseball (MLB) franchise.  The stadium has a seating capacity of 45,529, and contains 3,706 club seats and 61 luxury suites.  It replaced Busch Memorial Stadium (aka Busch Stadium II) and occupies a portion of that stadium's former footprint.  A commercial area, dubbed Ballpark Village, was built adjacent to the stadium over the remainder of the former stadium's footprint.

Lou Brock: Louis Clark Brock (born June 18, 1939) is an American former professional baseball player.  He began his 19-year Major League Baseball (MLB) career playing in 1961 for the Chicago Cubs, and spent the majority of his career playing as a left fielder for the St. Louis Cardinals.  He was inducted into the National Baseball Hall of Fame in 1985 and the St. Louis Cardinals Hall of Fame in 2014.  He is currently a special instructor coach for the St. Louis Cardinals.

2017 St. Louis Cardinals season: The 2017 St. Louis Cardinals season was the 136th for the St. Louis Cardinals of Major League Baseball (MLB), a franchise in St. Louis, Missouri.  It is the 126th season for the Cardinals in the National League (NL), and their 12th at Busch Stadium III.  For the first time since the 2007-2008 seasons, the Cardinals missed the playoffs in consecutive years, 2016-2017.

Les Backman: Lester John Backman (March 20, 1888 – November 8, 1975) was a Major League Baseball pitcher who played for two seasons.  He pitched for the St. Louis Cardinals for 21 games during the 1909 St. Louis Cardinals season and 26 games during the 1910 St. Louis Cardinals season.

2014 St. Louis Cardinals season: The St. Louis Cardinals 2014 season was the 133rd for the franchise in St. Louis, Missouri, the 123rd season in the National League (NL), and the ninth at Busch Stadium III.  The Cardinals entered 2014 as the defending NL champions.

Philippine Sports Stadium: The Philippine Sports Stadium, also known as New Era University (NEU) Stadium, is a football and track stadium at Ciudad de Victoria, a 140-hectare tourism enterprise zone in the towns of Bocaue and Santa Maria in Bulacan, Philippines.  The stadium was built right next to the Philippine Arena, the world's largest indoor arena.  The stadium is the largest football stadium in the Philippines with a maximum seating capacity of 25,000.  Its seating capacity is more than twice the seating capacity of the Rizal Memorial Stadium, the national stadium of the country which has a seating capacity of 12,000.

St. Louis Cardinals Hall of Fame Museum: The St. Louis Cardinals Hall of Fame Museum is a team hall of fame located in downtown St. Louis, Missouri, representing the history, players and personnel of the professional baseball franchise St. Louis Cardinals of Major League Baseball (MLB).  It is housed within Ballpark Village, a mixed-use development and adjunct of Busch Stadium, the home stadium of the Cardinals.  37 members have been enshrined within the Cardinals Hall of Fame.

Supporting paragraphs: 2014 St. Louis Cardinals season Busch Stadium
Answer: 45,529