re: My 9 y/o daughter's conclusion after seeing the climax in League of Their Own

Look, Dottie was better in every single way. Kit always had an inferiority complex. Dottie was hotter, more likable, and a better athlete. She knew that her sister needed a win and would mean infinitely more to her. So she dropped the ball. Nothing in the movie ever suggested that Kit had the potential to outperform Dottie. If she had some hidden fire inside that would someday put her over the top, they would have hinted to it during the film. Instead, they spent the entire time making it clear that Dottie was the alpha.