A system that analyzes motion of a putter and provides feedback to the golfer as a training aid to guide the golfer towards making better putting strokes. The putter may be equipped with an inertial motion sensor that captures data throughout a stroke; data may be transmitted to a processor, such as a mobile device or a server, for analysis, and feedback signals may be sent to the golfer throughout the stroke based on this analysis. For example, audio tones (generated for example by a mobile phone) may change depending on whether the putting stroke has the desired characteristics. The system may support different operating modes that provide feedback on different putting features. Illustrative modes may for example provide feedback on the putter orientation at address, on the timing of the backstroke, and on the changes in putter face orientation through the stroke.

The present disclosure relates to a putting practice device for developing a putting motion for accurately striking a golf ball to a target spot, wherein the putting practice device can be used irrespective of a trajectory and curvature formed by a putter head when striking the golf ball. In addition, the present disclosure includes an auxiliary fastening unit for fastening the putter head to a mounting part.

A method and an apparatus for playing golf on a hard surface comprises a replaceable striking pad attached to a conventional golf club head by means of at least one attachment means, a spiked ball, a portable ball trap to trap the spiked ball and an optional remotely controlled vehicle to position the portable ball trap. The replaceable striking pad includes a small lip at a bottom end on a front face and a holding ledge having substantially curved edges extending away from the bottom end of the front face. The holding ledge is adaptable to wrap around a bottom sole of the golf club head. The portable ball trap includes a thin flat platform with tapered edges, a central threaded pole positioned on the thin flat platform and a circular frame having a plurality of hinged tabs threaded to the central threaded pole.

A device for repairing pitch marks, which can be attached to a golf club, may include an end section with a cylindrical body and a pitchfork, wherein the pitchfork has at least one prong and is mounted on the cylindrical body by means of fixing means, wherein the pitchfork can be fixed on the cylindrical body by means of the locking means in a retracted position and in an extended position, wherein, in the retracted position, the pitchfork rests against an outer circumferential surface of the cylindrical body, and wherein, in the extended position, the prongs project beyond the cylindrical body in an axial direction.

Golf clubs according to at least some example aspects of this disclosure may include a golf club head and a shaft configured to engage with the golf club head which includes a grip engaged with the shaft. Further, the golf club may include a monitoring device, which includes a sensor and a transmitter. Additionally, the monitoring device may be configured to determine data related to the characteristics of a golf swing. Further, the monitoring device may be configured to transmit the data related to the characteristics of a golf swing to a remote computer.

A putt ruler is a device that separates the skills of straight-line putting from reading the green. The putt ruler may be affixed to the golf green and may be rotated to align with the identified target line. Through placement of two golf balls atop the putt ruler, a golfer may produce a putt that follows a straight line, when the stroke used may not have produced a straight-line putt on a single golf ball. The golfer may then evaluate the chosen target line in relation to the resultant putt and evaluate the speed of the putt as the ball travels along the playing surface.

A golf club head has a body defining a ball striking face. The body further has a first leg extending away from the ball striking face and a second leg extending away from the ball striking face wherein a void is defined between the first leg and the second leg. The body further defines a cover that extends over the void. The golf club head may further have support structures and adjustable weight members.

A putting stroke-selection system (10) is provided comprising a putter (12) having putter head (14) and a putter shaft (16), and a referencing indicium (24) comprising a plurality of calibrated distance markers (28) which is engaged or engagable with the putter shaft (16). This allows for the user to quickly visualize how the horizontal distance to the putting target from the golf ball correlates with the visible vertical separation on the referencing indicium (24).

A golf swing assistance apparatus comprises a cart body having a gear assembly, a height adjustable body rest pad, a pair of handle means adaptable to actuate the gear assembly, a safety shroud, a carrier, a drive shaft and a balancing cart leg connected to a stabilizing foot. The gear assembly includes a main ring gear operably coupled to a drive shaft gear by means of a pawl. The safety shroud ensures safety of a player and the carrier holds at least one golf club. The balancing cart leg adjusts the height of the apparatus. When the player actuates the gear assembly by pressing the handle, the drive shaft creates a direct drive mechanism that rotates the carrier and adjusts the at least one golf club in a perfect arc to hit a golf ball by providing a swing motion to the golf club.

A system that measures a swing of a bat with one or more sensors and analyzes sensor data to create swing quality metrics. Metrics may include for example rotational acceleration, on-plane efficiency, and body-bat connection. Rotational acceleration measures the centripetal acceleration of the bat along the bat's longitudinal axis at a point early in the rotational part of the swing; it is an indicator of the swing's power. On-plane efficiency measures how much of the bat's angular velocity occurs around the swing plane, the plane spanned by the bat and the bat's sweet spot velocity at impact. Body-bat connection measures the angle between the bat and the body tilt axis, which is estimated from the trajectory of the hand position on the bat through the swing; an ideal bat-body connection is near 90 degrees. These three swing quality metrics provide a simple and useful characterization of the swing mechanics.