In the 2010 National League Championship Series, the San Francisco Giants played the Philadelphia Phillies in game one on October 16th at the Citizens Bank Park (Which opened April 3, 2004 in Philadelphia, PA) and there were 45,929 people in attendence.
San Francisco Giants  4, Philadelphia Phillies  3 1 October 16 Citizens Bank Park 45,929 Philadelphia, Pennsylvania April 3, 2004 
Saturday, October 16, 2010  7:30 p.m. (EDT) at Citizens Bank Park in Philadelphia, Pennsylvania 45,929 1 It opened April 3, 2004, and hosted its first regular-season baseball game on April 12 of the same year, with the Phillies losing to the Cincinnati Reds, 41. Citizens Bank Park is a baseball park located in Philadelphia, Pennsylvania, within the city's South Philadelphia Sports Complex. 
