15
That was the 1st and the 4th where 8 runs combined were scored in each inning.
12
14
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.
The Cleveland Indians scored 14 runs in the top of the 2nd inning on April 18, 2009.
The most runs the Yankees have scored in one inning is 14in the 5th inning of a game against the Washington Nationals on July 6, 1920.
i believe it was the cardinals the other day who scored 9 in the 7t inning
The most runs scored in a single inning by the Baltimore Orioles was 12 against the Tampa Bay Devil Rays on April 11, 2002.
13 runs in the 4th inning April 13, 2003 at Cincinnati Reds.
13
The term 'unanswered run' means one team scored and the other team has not scored any runs afterwards. For example, let's say the home team scored one run in the second inning, two runs in the third inning, and one run in the fourth inning while the visiting team has been held scoreless after scoring one run in the first inning. You might hear an announcer say "The home team has scored four unanswered runs after the visiting team scored in the first inning'.