Plastic runways and plastic courts are inextricably linked to plastic. When it comes to plastic, people always refer to it as rubber, thinking that they can replace each other. However, this understanding is completely wrong. Simply put, plastic undergoes plastic deformation, while rubber undergoes elastic deformation. In other words, plastic is not easily restored to its original state after deformation, while rubber is relatively much easier. The essential difference between the two is that plastic raw materials are mainly composed of polymer synthetic resins, which have plasticity and flowability. Rubber, on the other hand, is a highly elastic polymer material with reversible deformation, which is elastic at room temperature and can produce significant deformation under very small external forces. The Greensburg plastic track has moderate elasticity and rebound, which can reduce physical exertion and improve race performance. Moderate absorption of foot impact, reducing sports injuries, suitable for long-term practice and competition. It has a strong elastic layer and buffer layer, which can absorb strong impacts and will not damage the surface.