Plot hole: In the game against Fayetteville, Crash puts down two fingers indicating he wants Nuke to throw the curve. When the camera then shows Nuke shaking him off, you can see Fayetteville has a runner on 2nd. Even in the minors the catcher will mix up the signs so the runner on 2nd couldn't steal them and tip the pitch. He'd never just hold down two fingers.
Bull Durham (1988)
1 plot hole - chronological order
Directed by: Ron Shelton
Starring: Susan Sarandon, Kevin Costner, Tim Robbins, Trey Wilson
Factual error: In the opening game of the movie the announcers at the ball park are referring to the visiting team as the Peninsula White Sox. The team shown on the field is the Hagerstown Suns. (00:07:00)
More quotes from Bull Durham
Trivia: Because of the popularity of the film, the real Durham Bulls were able to move up to Class AAA, the highest tier of the Minor Leagues, in 1997.