The lifespan of a professional rugby ball typically averages between 6 to 12 months, depending on its usage and maintenance. High-quality balls made from durable materials are designed to withstand rough conditions during play. Factors like the surface they're used on and the intensity of games can affect their longevity, leading to wear, loss of shape, and reduced performance. Teams usually replace their rugby balls regularly to ensure optimal gameplay and adherence to regulatory standards.