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Definition: Outside Influence

Any of these people or things that can affect what happens to a player's ball or equipment or to the course:

• Any person (including another player), except the player or his or her caddie or the player's partner or opponent or any of their caddies,
• Any animal,
• Any natural or artificial object or anything else (including another ball in motion), except for natural forces, and
• Artificially propelled air and water, such as from a fan or irrigation system.

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