The White Sox-Rangers game is finally postponed after a seven and one-half hour rain delay, which is believed to be the longest in baseball history. Although White Sox owner Jerry Reinsdorf said he did not regret the decision to make the fans wait so long for a game that never started and would do it again, the team announced five hours before the postponement that rain checks would be honored if the game was played, and free coffee, soft drinks, and sandwiches were served later in the evening to the few hundred fans remaining in the stands.

On August 12, 1990 — The White Sox-Rangers game is finally postponed after a seven and one-half hour rain delay, which is believed to be the longest in baseball history. Although White Sox owner Jerry Reinsdorf said he did not regret the decision to make the fans wait so long for a game that never started and would do it again, the team announced five hours before the postponement that rain checks would be honored if the game was played, and free coffee, soft drinks, and sandwiches were served later in the evening to the few hundred fans remaining in the stands.

Source:
Baseball Reference August 12
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game