Some embodiments include club heads having reinforced club head faces. In one example, the club face comprises a reinforcement element such as a looped rib positioned on a rear surface of the club face to provide reinforcement. The club head further comprises an undercut that extends along the entire perimeter of the club face to provide increased club face bending. The combination of the reinforcement element and the undercut reinforces the club head while permitting the club face to bend. Other embodiments of related club heads and methods are also disclosed.

A method for racket customization includes the steps of measuring data of a total length, a racket head length, a net weight, a swing weight and a balance spot of a racket; using a calculation unit to integrate the data. When a user customizes the data of one of the net weight, the swing weight and the balance spot, a position where an additional weight is to be put on the racket can be calculated. In this way, the user can customize the desired racket easily and quickly.

A method for racket customization includes the steps of measuring data of a total length, a racket head length, a net weight, a swing weight and a balance spot of a racket; using a calculation unit to integrate the data. When a user customizes the data of one of the net weight, the swing weight and the balance spot, a position where an additional weight is to be put on the racket can be calculated. In this way, the user can customize the desired racket easily and quickly.

An apparatus for precisely and accurately measuring the loft and lie of a golf club, and a method of using such apparatus, is disclosed herein. The apparatus includes a clamp assembly powered by a pressure unit to immobilize the head of a golf club, a scoreline measurement unit to capture scoreline angle information, loft and lie measurement arrays that can be moved along horizontal y and x axes to capture loft and lie angle information of the golf club shaft, and a computer with an algorithm that uses information captured by the scoreline measurement unit and loft and lie measurement arrays to calculate final loft and lie angle values that are accurate within +/−0.125°.

An apparatus for precisely and accurately measuring the loft and lie of a golf club, and a method of using such apparatus, is disclosed herein. The apparatus includes a clamp assembly powered by a pressure unit to immobilize the head of a golf club, a scoreline measurement unit to capture scoreline angle information, loft and lie measurement arrays that can be moved along horizontal y and x axes to capture loft and lie angle information of the golf club shaft, and a computer with an algorithm that uses information captured by the scoreline measurement unit and loft and lie measurement arrays to calculate final loft and lie angle values that are accurate within +/−0.125°.

Embodiments of a golf club head with a plurality of energy storage features are presented herein. In some embodiments, a golf club head comprises a body comprising a strike face, a heel region, a toe region opposite the heel region, a sole, a crown, a channel, a chamfer spanning between a strike face and the crown, and an internal radius transition feature from the strike face to at least one of the sole or the crown.

A system and computer-implemented method for generating a fitting recommendation for a golf club. In an example, the method includes receiving, by a computing device, player input data; receiving, by the computing device from a launch monitor communicatively coupled to the computing device, first swing analytics for at least one golf shot of a first shot type; and based on the player input data and the first swing analytics, generating, by the computing device, the fitting recommendation comprising at least one of a bounce or a grind for the golf club.

A system and computer-implemented method for generating a fitting recommendation for a golf club. In an example, the method includes receiving, by a computing device, player input data; receiving, by the computing device from a launch monitor communicatively coupled to the computing device, first swing analytics for at least one golf shot of a first shot type; and based on the player input data and the first swing analytics, generating, by the computing device, the fitting recommendation comprising at least one of a bounce or a grind for the golf club.

A golf tip plug housing includes an exterior surface configured to be securably affixed to a butt end of a golf club shaft and an interior surface configured to securably receive a golf tip plug having an outer diameter of either: (a) 7.0 mm-7.6 mm or (b) 4.0 mm-4.6 mm. In one aspect, a golf club includes a head and a shaft having a tip end attached to the head and a butt end opposite the tip end. A tip plug includes a stem and a head. The tip plug stem has an outer diameter sized to be insertable in the tip end. A tip plug housing has an outer diameter sized to be insertable in the butt end and an inner diameter sized to receive the tip plug. The tip plug is positioned in the tip plug housing and the tip plug housing is positioned in the butt end.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.