<P> On opening day 1955, former President Harry S. Truman, a Kansas City resident, threw out the ceremonial first pitch . Connie Mack and legendary A's player Jimmie Foxx were also in attendance . The A's defeated the Detroit Tigers, 8--2, </P> <P> The baseball field was aligned northeast (home plate to center field) at an approximate elevation of 900 feet (270 m) above sea level . </P> <P> From 1923 to 1955, the stadium was also home to the Negro Leagues' longest - running team, the Kansas City Monarchs . The Monarchs won eleven league championships before integration (1923--25, 1929, 1931 in the NNL; 1937--40, 1942, 1946 in the NAL). They appeared in four Negro League World Series . They won the first ever Series in 1924 . The Monarchs then lost the 1925 Series . They won the 1942 Negro World Series, and lost the 1946 Series . </P> <P> Many noteworthy players played for the Monarchs at Muelbach Field . The legendary Buck O'Neil played 10 seasons for the Monarchs . </P>

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