The longest game in 12 years, again at Forbes Field, takes place between the Colt 45’s and the Pirates. Rain delays the start of the two games by an hour, then Houston outlasts the Bucs, 7 – 6, in 15 innings. The second game is another struggle, this time the Pirates winning, 7 – 6, in 11 innings, on a bases-loaded single by Roberto Clemente. Only 300 fans are on hand when the curtain comes down at 2:30 a.m.

This Day In Baseball

On August 9, 1963 — The longest game in 12 years, again at Forbes Field, takes place between the Colt 45’s and the Pirates. Rain delays the start of the two games by an hour, then Houston outlasts the Bucs, 7 – 6, in 15 innings. The second game is another struggle, this time the Pirates winning, 7 – 6, in 11 innings, on a bases-loaded single by Roberto Clemente. Only 300 fans are on hand when the curtain comes down at 2:30 a.m.

Source:
Baseball Reference August 9
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game