In the second game of a Sunday doubleheader between the Pirates and the Dodgers, the umpire continues the game through a 7:00 P.M. curfew because he believes Pittsburgh to be stalling with a 5 – 4 lead. The Dodgers pass the Pirates for a 7 – 5 score, but Ralph Kiner hits a three-run home run to carry Pittsburgh to a 10 – 8 victory. The Pirates are fined $100 for violating the curfew and Kiner will end up tying Johnny Mize with 40 home runs.

On May 9, 1948 — In the second game of a Sunday doubleheader between the Pirates and the Dodgers, the umpire continues the game through a 7:00 P.M. curfew because he believes Pittsburgh to be stalling with a 5 – 4 lead. The Dodgers pass the Pirates for a 7 – 5 score, but Ralph Kiner hits a three-run home run to carry Pittsburgh to a 10 – 8 victory. The Pirates are fined $100 for violating the curfew and Kiner will end up tying Johnny Mize with 40 home runs.

Source:
Baseball Reference May 9