Some of the most awesome and inspiring sports movies are not based on a true story. Although some sports movies are authentic and emotional enough to feel like they were derived from real-life teams and athletic scenarios, not every outstanding sports movie is based on true events. It's a common assumption that every great sports movie is likely based on an actual player, coach, or group of teammates who defied the odds to become champions in their given field.

https://screenrant.com/best-sports-movies-not-based-on-true-story/