What to do if You Run Out of Golf Balls
You need to know the rules of golf well to legally use them to your advantage legally. This is where TheGolfExpert can help you.
The ball

Rule 25-2 - If your ball is embedded through the green (i.e. fairway or rough excluding hazards) you may lift, clean, and re-drop your ball no closer to the hole without penalty.
Rule 5-1 - A player may borrow a golf ball from his/her opponent or fellow competitor as long as it does not delay play.
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