ADuring a montage of baseball footage of the Peaches, Dottie is shown catching balls by almost any means necessary (In splits, jumping into the dugout, behind her back, and other players running into her). She is capable of catching and hanging on to the ball. In the final play of the world series scene, Dottie has that ball and is ready to tag Kit out. Kit rams her, knocks her over and Dottie drops the ball...winning Kit's team the World Series. Dottie says it's the way the game is played. It is also hinted that she may have done it intentionally based on many small hints during the movie (her talk with her grandsons, and the looks on Dottie's face when Kit is obviously shadowed by her). It is also entirely possible Kit wanted to win so badly she did knock it out of Dottie's hand. Does she drop it intentionally? Maybe yes, maybe no. It's really up to the viewer to decide for themselves.