Pittsburgh (Federal League) drops game 1, 6 – 0, at Baltimore, then scores in every inning of the nitecap to win, 13 – 5. This is the first game since 1894 in which this has happened.

On july 1, 1915 Pittsburgh (Federal League) drops game 1, 6 – 0, at Baltimore, then scores in every inning of the nitecap to win, 13 – 5. This is the first game since 1894 in which this has happened.

Source
Baseball Reference July 1