For decades, the NFL has relied on the traditional method of using chain gangs to measure first downs and spot the football. Despite numerous technological advancements in the game, the ball’s placement has still been determined by human eyes and manual measurements. Is it finally time for this to change?
In 2024, the NFL began testing a new optical tracking system designed to replace the chain gang for line-to-gain rulings. According to CBS Sports, the system was trialed during the preseason, with the potential for a full roll-out by the start of the regular season.
Early Tests and Installation
In the past, the NFL conducted initial tests of the optical tracking system at MetLife Stadium and Hard Rock Stadium. The system, which aims to reduce human error in ball placement, utilizes advanced cameras to track the football, players, and officials in real time.
Gary Brantley, the NFL’s Senior Vice President and Chief Information Officer, explained that the league is currently in the “installation phase” of the technology. He noted that while the system is being calibrated for various stadiums with differing dimensions and ages, its accuracy is being continuously fine-tuned to ensure it meets the league’s high standards.
What to Expect From the Technology
The NFL’s partnership with Sony, which was officially announced in summer 2024, is central to the technology’s implementation. Sony’s Hawk-Eye system, widely known for its use in tennis and soccer, will be adapted to measure line-to-gain rulings. Cameras installed throughout the stadium will monitor the ball’s location and notify officials in real time if a first down is achieved.
This system is designed to be highly accurate, with measurements accurate to within half an inch. According to Neal Manowitz, President and COO of Sony, the system will also save time during games, reducing stoppages by about 40 seconds each time it’s used. This faster and more accurate method promises to make the game more efficient and improve the overall fan experience.
The Chain Gang’s Future
Although the optical tracking system will be the primary method for measuring first downs in the future, the traditional chain gang will remain in place as a backup. This allows players, coaches, and fans to continue relying on a familiar system as they adjust to the new technology. The chain gang will also serve as a visual reference, providing an additional layer of reassurance for everyone involved.
In addition to enhancing officiating, Sony’s Hawk-Eye technology will be used to improve other areas of the game. The partnership with the NFL extends beyond just line-to-gain measurements, with the company working on new coach’s sideline headsets set to debut in 2025. The technology will also enhance sideline photography, broadcast cameras, and production, further enriching the viewing experience.
