This book includes peer reviewed articles from the 4th International Conference on Innovation and Technology in Sports ICITS 2025 held in conjunction with the ASEAN Symposium in Sports Innovation 2025 that comprehensively includes diverse technological facets within the realm of Sports Engineering and Technology. It presents cutting-edge research and technological advancements in sports science, engineering, and innovation. Topics covered include sports biomechanics, performance analytics, wearable technology, sports medicine, artificial intelligence in sports, data science applications, equipment design, and emerging technologies shaping the future of athletic performance. This collection represents the latest developments in sports technology with particular focus on innovations relevant to the ASEAN sports industry and their global applications. This book serves as an essential reference for researchers, engineers, sports scientists, technology developers, and industry professionals seeking to understand current trends and future directions in sports innovation and technology.