How far from the sideline do the "9-yard" marks begin?

The "9-yard" marks are located 9 yards from the sidelines. This positioning is critical for ensuring that players can properly understand their alignment and positioning relative to the yard markers on the field. The placement helps coaches and players in determining how far they need to line up from the sideline during plays and aids officials in managing the game. Correctly identifying where the "9-yard" marks begin is essential for maintaining the integrity of plays and helping players adhere to regulations governing their positioning. This aligns with the NFHS rules, which typically define these markings to assist in gameplay execution and strategy.