1st & Ten (graphics system)

1st & Ten is a real-time virtual graphics system used primarily in televised American football broadcasts. Its core function is to overlay graphical elements onto the live video feed to enhance the viewer experience, particularly in illustrating the line of scrimmage and the "first down" marker (ten yards gained).

The system works by utilizing a combination of camera tracking data, field calibration, and sophisticated image processing algorithms. Specifically, it tracks the movement and position of the broadcast cameras, allowing the system to accurately project virtual lines and other graphical elements onto the playing field, regardless of the camera angle or movement.

The key features of 1st & Ten typically include:

• First Down Line: A bright yellow (or occasionally other color, depending on broadcast standards) line superimposed on the field to visually represent the distance the offensive team must advance to achieve a first down.

• Line of Scrimmage: Another line, often blue, indicating the starting point of the play.

• Yardage Markers: Additional graphical elements may indicate specific yard lines or distances.

• Other Enhancements: Some versions and implementations of 1st & Ten offer additional features such as highlighting players, showing distances to the end zone, or illustrating play diagrams.

The system is typically operated by a dedicated graphics operator who adjusts the settings and calibration in real-time to ensure accurate and consistent overlay. While variations and competitive systems exist, "1st & Ten" has become a widely recognized term, sometimes used generically to refer to any similar virtual graphics system used in football broadcasts.