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How large and how deep is a standard golf hole?

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Tiger Woods follows through on his golf swing after teeing off, standing in tall grass with spectators watching in the background at St Andrews Golf Links. — golf American golfer Tiger Woods competing at the British Open (Open Championship) at St. Andrews, Fife, Scotland, 2005.

A standard golf hole measures 4.25 inches (10.8 cm) in diameter and must be at least 4 inches (10.2 cm) deep. These holes are located within the green, a specialized area of turf that is meticulously maintained and closely mowed to facilitate putting.12