[3][4] For the film's score, Bowers used a prepared piano which was critical to emphasize familial warmth as well as driving it as a percussive vehicle to understand the sport of tennis, as well as how Serena and Venus changed the game.

[5][6] Even though it diluted the string vibration, the sound resonated with piercing, unique power, which he admitted "In the beginning of the tennis match [in the film], we strip everything down just to prepared piano, so that it feels incredibly tense.

Rhythmically, he wanted the score to feel unpredictable as the game, hence he used several ambient and percussive sounds to immerse the viewers in the climax scenes.

"[10] Monica Castillo of TheWrap wrote "Composer Kris Bowers’ score is similarly rich and glowing, swelling the music just as Richard and the girls get their hard-won victories and touching moments.

"[11] Chris Tilly of IGN wrote "Kris Bowers’ music pays homage to Jerry Goldsmith’s Rocky score".