Unfair and unnecessary calls in soccer games are unavoidable, and it is hard for officials to make decisions on a whim. Controversial decisions made by referees bring dissatisfaction from fans, cause tension among clubs, and allow players to try and cheat their way into getting a penalty in their favor. Contaxt Athletics designed a compact and sophisticated contact sensor system tailored for professional soccer leagues worldwide. The system integrated seamlessly into players' attire, particularly socks and knee pads, providing real-time data on contact and impacts during matches. The hardware comprises a microcontroller unit (MCU), orchestrating pressure-sensitive sensors or accelerometers, a wireless communication module (such as Bluetooth Low Energy), and a rechargeable battery enclosed within a lightweight, breathable housing. Software development included firmware for data processing, distinguishing between legitimate contacts and incidental impacts, and implementing a robust wireless communication protocol. Additionally, a user-friendly interface was crafted for video referees, enabling them to visualize sensor data alongside live match footage and receive real-time alerts for significant contacts or fouls. The system underwent rigorous testing to ensure compliance with professional soccer regulations and standards. This innovative solution enhances officiating accuracy, promotes fair play, and enriches the spectator experience by providing insightful data on player interactions. With scalability and reliability at its core, this soccer contact sensor system represents a significant advancement in sports technology, poised to elevate the standards of officiating in professional soccer leagues globally.