1888 – At the Pennsylvania State Agricultural Society, on the Pennsylvania State Fair Buildings and Grounds located at Broad Street & Lehigh Avenue in Philadelphia, the Downtowners beat the Uptowners in the first sanctioned indoor baseball game ever played, 6 – 1, before a crowd of 2,000.
1888 – At the Pennsylvania State Agricultural Society, on the Pennsylvania State Fair Buildings and Grounds located at Broad Street & Lehigh Avenue in Philadelphia, the Downtowners beat the Uptowners in the first sanctioned indoor baseball game ever played, 6 – 1, before a crowd of 2,000.