Disclosed is a golf club set having harmonized golf club performance among
the club numbers. In the golf club set, for at least three golf clubs, a
ratio or a sum of a frequency per unit time, the frequency being measured
by vibrating a tip portion of a golf club shaft constituting each of the
golf clubs, and a frequency per unit time, the frequency being measured
by vibrating a rear end portion of the golf club shaft, is determined in
relation with order of the club number.