Plot hole: In the scene where Roy takes his ball out of the hole, at the last round of the US Open, the crowd are going wild etc. Dave, who has a chance to win the competition, doesn't finish off his round.
Tin Cup (1996)
2 plot holes - chronological order
Starring: Kevin Costner, Cheech Marin, Rene Russo, Don Johnson
Continuity mistake: When Roy is talking to Romeo about winning the U.S. Open he is seen with a glass of milk in his hand in one scene and in the next the glass in on the table in front of him.
Romeo Posar: Now THAT was a defining moment. And the definition was "shit."
Trivia: Kevin Costner made most of his own golf shots in this film.