These numerical ratings, typically assigned to disc golf discs, quantify their aerodynamic characteristics. Each rating corresponds to a specific flight trait: speed, glide, turn, and fade. For instance, a speed rating of 13 indicates a fast disc, while a negative turn rating suggests a disc prone to turning to the right (for a right-handed backhand throw). These values help players select discs appropriate for their throwing power and the demands of a particular course or hole.
Understanding these ratings empowers players to predict disc flight paths and choose discs strategically. This knowledge can enhance performance, enabling players to navigate obstacles, maximize distance, and improve accuracy. Disc manufacturers utilize these quantifiable measures to ensure consistent flight characteristics across disc models and productions, fostering a standardized system for players of all skill levels. Historically, the development of these standardized ratings contributed significantly to the growth and professionalism of disc golf, enabling more precise communication and comparison of disc performance.