The NFL is finally saying goodbye to the old-school chain gang and embracing technology to measure first downs. Starting in the 2025 season, the league will rely on Hawk-Eye virtual measurement, a system that uses cameras to track the ball and determine whether a team has gained a first down. While the chains will still be on the sidelines as a backup, the primary method for first-down rulings will now be technology-driven.
How Does The New System Works?
The Hawk-Eye system, already used in sports like tennis and soccer, tracks players, officials, and the ball inside stadiums. Once the ball is spotted, the system instantly notifies officials if a first down has been achieved. This eliminates the need for on-field measurements with chains and brings a more precise and efficient approach to the game.
Extensive Testing In 2024
According to Kimberly Fields, NFL senior vice president of football operations, the league conducted “extensive testing” of Hawk-Eye throughout 2024, including in the preseason. The system’s accuracy and reliability were closely monitored, and after positive results, the league decided to implement it in 2025. If any issues arise, the NFL can modify or discontinue its use.
Why The Change?
For years, NFL fans and analysts have criticized the chain gang for being outdated and occasionally leading to controversial calls. One of the biggest examples came in the 2024 AFC Championship Game between the Buffalo Bills and the Kansas City Chiefs. In the fourth quarter, the Bills went for it on fourth down, and quarterback Josh Allen attempted a sneak. While some camera angles suggested he had reached the first down marker, it wasn’t definitive.
