The record is 13 against the Cincinnati Reds. I'm not sure exactly what year but it was sometime between 2002-2005. Recent. I believe it was the 4th inning but I wouldn't swear to it. Also, it was the only inning in which the Phillies scored in the game.
26 against the New York Mets in 1985.
The Philadelphia Phillies Scored 23 Run In A Loss To The Cubs. (26-23).
13 runs in the 4th inning April 13, 2003 at Cincinnati Reds.
They scored 8 in the 2nd inning of some game. My source doesn't give the date, but that is the most they've scored in an inning this year.
That is 28 against the Philadelphia Phillies on July 6, 1929. The Cardinals won that game 28-6.
The most runs scored in an inning by both teams is 19 in the 8th inning of a game between Cleveland and Boston in 1977. Cleveland scored 13 runs and Boston scored 6. The most runs scored by a single team in aninning is 18 by Chicago against Detroit in the 7th inning of a game played in 1883.
The Yankees scored 12 runs in the first inning against the Orioles.
Through games played on September 3, that is the Colorado Rockies with 670. The Philadelphia Phillies are second with 668.
The Philadelphia Phillies
Mike Schmidt won 3 national League MVP Awards with the Philadelphia Phillies.