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  2. American football field - Wikipedia

    en.wikipedia.org/wiki/American_football_field

    The yard lines are also identified at 10-yard intervals by orange markers placed outside the sidelines adjacent to the respective line. Yard lines other than multiples of 5 are marked by 2-foot (0.61 m) long, 4-inch (0.10 m) wide lines painted parallel to the goal lines at 1-yard intervals spanning the length of the field just inside each ...

  3. Hash mark (sports) - Wikipedia

    en.wikipedia.org/wiki/Hash_mark_(sports)

    In American football and Canadian football, the hash marks are two rows of lines near the middle of the field that are parallel to the side lines.These small lines (4 in [10 cm] wide by 2 ft [61 cm] long) are used to mark the 1-yard sections between each of the 5-yard lines, which go from sideline to sideline.

  4. American football - Wikipedia

    en.wikipedia.org/wiki/American_football

    Rugby, like American football, is a sport in which two competing teams vie for control of a ball, which can be kicked through a set of goalposts or run into the opponent's goal area to score points. [11] What is considered to be the first American football game was played on November 6, 1869, between Rutgers and Princeton, two college teams ...

  5. 1st & Ten (graphics system) - Wikipedia

    en.wikipedia.org/wiki/1st_&_Ten_(graphics_system)

    The 1st and Ten line displays the yard line needed for a first down during an ESPN Sunday Night Football broadcast.. 1st & Ten is a computer system that augments televised coverage of American football by inserting graphical elements on the field of play as if they were physically present; the inserted element stays fixed within the coordinates of the playing field and obeys the visual rules ...

  6. File:SD, Full HD, 4K Ultra HD and 8K Ultra HD.png - Wikipedia

    en.wikipedia.org/wiki/File:SD,_Full_HD,_4K_Ultra...

    Original file (7,680 × 4,320 pixels, file size: 253 KB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  7. Dicker-rod - Wikipedia

    en.wikipedia.org/wiki/Dicker-rod

    The device features a rod approximately 3 yards (9.0 ft; 2.7 m) in length. [4] [2] [a] Initially, the rod is positioned horizontally by its operator, and a marker attached to the rod is positioned to indicate the ball's position from the nearest five-yard marker (that is, the 5, 10, 15, 20, etc. yard lines). [4]

  8. Return yards - Wikipedia

    en.wikipedia.org/wiki/Return_yards

    Progress can be made during play by the offensive team by advancing the ball from its point of progress at the start of play known as the line of scrimmage or by the defensive team after taking possession of the football via a change of possession (such as punt, kickoff, interception, punt block, blocked kick or fumble). When the defensive team ...

  9. End line - Wikipedia

    en.wikipedia.org/wiki/End_line

    It is a marked field line, perpendicular to the sidelines, that designates out of bounds at each end of the playing field. It is measured 30 feet (10 yards) from the edge of the marked goal line toward the field of play to the inside edge of the marked end line, so that the marked line itself is considered out of bounds. [2]