Players adapt their movement on grass versus hard courts primarily due to the differences in surface characteristics. On grass, the footing is often less stable and the ball tends to skid, requiring players to adjust their movement to be quicker and more agile, with a focus on short, explosive steps to maintain balance and change direction efficiently. In contrast, hard courts provide a more consistent and predictable surface that allows for longer strides and more fluid movement patterns. Players often adopt a stronger emphasis on lateral movements and baseline positioning on hard courts, while on grass, they may prioritize quick net approaches and volleys to exploit the surface's bounce and speed. Overall, the choice of footwear, court positioning, and shot selection also vary considerably between the two surfaces, influencing players’ overall strategies and movement dynamics.