A high-quality base is crucial for the overall performance and safety of any sports surface. Base checks ensure that the foundation beneath synthetic running tracks, football turfs, or any athletic field meets stringent standards. These checks involve assessments of formation to evaluate load-bearing capacity, trafficability, and slope accuracy. Detailed inspections of the drainage system, including design conformity, trench dimensions, and water collection systems, are essential for effective water management. Sub-base evaluations cover depth, granulometry, bulk density, and bearing capacity using the Light Weight Deflectometer (LWD) test. Evenness, slope checks, and water permeability tests finalize the assessment. These factors collectively create a robust and reliable foundation, enhancing the durability and performance of the sports surface above.