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The Official Site of the Oakland Athletics
Ground Rules

Oakland Coliseum's unique dimensions are designed to maximize every aspect of watching and playing America's Pastime. Please observe the following ground rules.

Oakland Coliseum Dimensions

Oakland Coliseum Ground Rule Particulars

Home Run: Batted ball striking above face of out-of-town scoreboard (above yellow line on top of scoreboard)

In Play: Ball enters the bullpen seating area and rebounds out of the seating area

In Play: Batted ball striking face of out-of-town scoreboard

Out of Play: Ball lodging on, under or in the bullpen seating area: Out of Play. A ball is deemed to be lodged when it goes in or behind equipment or seating or, in the umpire's judgment, is deemed otherwise unplayable

Universal Ground Rules

The Commissioner's Office has issued the following Universal Ground Rules for use in all Major League ballparks this season. Ground Rules pertaining to individual parks are posted separately in those parks.

  • Ball on the top step (lip) of the dugout is in play.
    • No equipment is permitted to be left on the top step (lip) of the dugout. If a ball hits equipment left on the top step it is dead.
  • A player is not permitted to step or go into a dugout to make a catch.
    • A player is permitted to reach into a dugout to make a catch. If a player makes a catch outside the dugout and the player's momentum carries him into the dugout, then the catch is allowed and the ballis dead. See Rule5.09(a)(1) Comment.
  • A batted ball in flight can be caught between or under railings and around screens.
  • A catch may be made on the field tarp.
    • Batted or thrown ball lodging in the rotating signage behind home plate or along first base or third base stands is out of play.
  • Batted or thrown ball resting on the rotating signage behind home plate or along first base or third base stands is in play.
  • The facings of railings surrounding the dugout and photographers areas are in play.
    • Any cameras or microphones permanently attached on railings or along outfield walls are treated as part of the railings or outfield walls and are in play.
    • Any recessed railings or poles that are in the dugout and photographers areas are out of play and should be marked with red to mark them out of play.
  • Robotic cameras or audio equipment attached to the facing of the backstop screen are considered part of the screen.
    • A batted ball striking the backstop camera or audio equipment is considered a dead ball.
    • A thrown ball striking the backstop camera or audio equipment is considered in play.
  • A ball striking the guy wires that support the backstop is a dead ball.
  • A ball lodging behind or under canvas on field tarp is out of play.
  • A ball striking the field tarp and rebounding onto the playing field is in play.
  • No chairs can be brought out of the dugout or bullpen and onto the playing field.
  • All yellow lines are in play.