The current method for checking first downs is a very primitive and error prone system. In addition to the inaccuracy of the markers, taking the chains out onto the field for close call measurements is a waste of time.
With the use of lasers, the markers determine whether or not the ball has crossed the first down plane.
Close first down calls can be measured precisely with no question. LaserRef is accurate down to the inch and capable of determinig calls within seconds. This information is automatically uploaded to Twitter for fans to easily see.
Meet the awesome people on this project.
