When serving a legal serve in tennis, you must stand behind the baseline. The line you must be behind is called the baseline.
I believe it is called the "Maland Line"....
You stand behind the white line at the back of the court. This is known as the base line.
The white line painted around the oval to determine the field of play is called the boundary line.
The quarterback can only make a forward pass from behind the line of scrimmage. A lateral pass may be made from anywhere.
The umpire stands behind the defensive line and looks for holding on the offensive line. In the NFL the umpire stands behind the offensive line opposite the referee and looks at the line for holding and other infractions.
In the standard game the line, behind which the player should stand is 2.37 m(7 ft 9¼) for steel tip, soft tip is 8 feet even. This is the standard, recognized by the World Darts Federation.
When they are five yards behind the line of scrimmage they call that the SHOTGUN formation.
Siegfried Line. It was called the Hindenburg Line by the Allies. Siegfried Line. It was called the Hindenburg Line by the Allies.
they line up behind the defensive line thats why they are called line backers
The oche is the line behind which the throwing player must stand (7 ft 9¼ inches from the dartboard per World Darts Federation regulations).
Quarterback and running back