At the beginning of the movie, when Artie mentions team names that he gets to announce, one is the "Rancho Cucamonga Quakes." Though that is a real team, they are a single-A team, and would not play against the Fresno Grizzlies, who are a triple-A team.
When Artie is doing play by play for the Braves vs Giants game, he mentions Hudson as the starter for the Braves. When the game is shown on TV it is clearly Derek Lowe who is the pitcher for the Braves.