matinee

"hist. An afternoon baseball game; specif., the afternoon game that was once traditionally played on the same day as a morning game. Such games were once common on holidays such as July 4th and Labor Day. Although there were no hard and fast rules for matinees, same-day games were not usually regarded as doubleheaders and one had to pay separate admissions to each game. 1ST USE. 1898 (New York Tribune, June 19; Edward J. Nichols)."
Paul Dickson, The Dickson Baseball Dictionary