- Batted ball striking the silver vertical railing closest to the bullpen on the seating area safety fencing on top of the left field or right field corner wall and bounding into the stands or bullpen: Out of Play.
- Ball in flight: Home Run
- Bounding ball: Ground Rule Double
- Batted ball striking any other portion of the outfield wall below the top horizontal railing and bounding into the stands or bullpen: Ground Rule Double.
- Batted ball in flight striking the padded edges on top of the outfield wall on either side of the main video board in center field and continuing over the wall: Home Run.
- Batted ball in flight striking the top of the outfield wall above the out-of-town scoreboards and bouncing over the fence: Home Run.
- Batted ball in flight striking the railing above and behind the out-of-town scoreboard in right field and rebounding onto the playing field: Home Run.
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.
Inside Kauffman Stadium