There is provided a golf club head cover with golf ball holders on the outside comprising of a golf club head cover, golf ball holders attached to the outside of the golf club head cover and fasteners that attach the golf ball holders to the golf club head cover. The golf ball holders may form an animal or character feature such as an eye.

An item holder primarily containing two parts: a ball shaped element and a clip. The clip can be seated neatly into a cutout in the ball shaped element. The clip can also be designed as a divot tool or a spike and contains a clamp that can be used to hold a cigar or cigarette, support a golf club or have other uses. The ball shaped element is sized to fit neatly into the ball bracket on any pull cart or motorized cart equipped with such a bracket.

A golf ball scriber includes: a clip comprising a first clip body and a second clip body which are connected by a pivot shaft; a clamping groove surface disposed on an inner clamping surface of the clip; a sealed brush device; a first clip groove and a second clip groove symmetrically arranged on a respective outer wall of the first clip body and the second clip body; a scribing ruler disposed at a bottom surface of the first clip groove; a strip-shaped chamfered groove disposed on the scribing ruler away from the clamping groove surface; and a strip-shaped scribing groove disposed on the chamfered groove which corresponds to the clamping groove surface, wherein the scribing ruler, the chamfered groove, and the scribing groove share a central line, and the brush device is in sliding connection with the first clip groove disposed on the first clip body.

A recommended distance provision method for providing a recommended distance in consideration of characteristics of wind by a distance recommendation device for golf is proposed. The method includes calculating a horizontal distance, a vertical distance, and the recommended distance of a shot, which are distances to a target without considering an influence of the wind, on the basis of measurement information including a straight-line distance to the target and an inclination to the target, calculating a horizontal distance correction value for the horizontal distance on the basis of information on a wind direction and a wind speed, calculating an adjusted landing angle for a preset landing angle on the basis of the information on the wind direction and the wind speed, and calculating an additional distance correction value, and calculating a final recommended distance by adding the calculated additional distance correction value and the horizontal distance correction value.

A distance recommendation device for golf is proposed. As a method for providing a recommended distance from a ball to a target at a third location by the distance recommendation device for the golf, there is provided a distance recommendation method that includes obtaining position information of the ball positioned in each hole, obtaining position information of the target positioned in each hole, and generating a recommended shot distance from the ball to the target on the basis of the obtained information.

An adjustable height golf tee system having a tee and an anchor is discussed. The tee is height-adjustable relative to the anchor. A first anchor includes a cap, a stem, and a tip. The stem can be threaded internally, externally, or a combination thereof. A second anchor includes a base, a first stem, a cap, and a second stem as well as optional spacers. The stems can be threaded internally. Both the first and second anchors can be composed multiple pieces (e.g., a detachable cap, a detachable stem, or a detachable portion thereof) to provide access to an inner cavity of the respective stems.

A simple method for and apparatus for determining relative distance for two or more halls. The apparatus comprises two distinguishable pointers joined by a common axis that allows the pointers to rotate relative to each other. The mechanism also include means to allow the two pointers to be fixed relative to one another.

A simple method for and apparatus for determining relative distance for two or more halls. The apparatus comprises two distinguishable pointers joined by a common axis that allows the pointers to rotate relative to each other. The mechanism also include means to allow the two pointers to be fixed relative to one another.

Methods, systems, and apparatus, including medium-encoded computer program products, for 3D flight tracking of objects includes, in at least one aspect, a method including obtaining two dimensional image data of a golf ball in flight, the two dimensional image data originating from a camera; obtaining radar data of the golf ball in flight, the radar data originating from a Doppler radar device associated with the camera; interpolating the radar data to generate interpolated radar data of the golf ball in flight; and blending radial distance information derived from the interpolated radar data of the golf ball in flight with angular distance information derived from the two dimensional image data of the golf ball in flight to form three dimensional location information of the golf ball in three dimensional space.

Methods, systems, and apparatus, including medium-encoded computer program products, for 3D flight tracking of objects includes, in at least one aspect, a method including obtaining two dimensional image data of a golf ball in flight, the two dimensional image data originating from a camera; obtaining radar data of the golf ball in flight, the radar data originating from a Doppler radar device associated with the camera; interpolating the radar data to generate interpolated radar data of the golf ball in flight; and blending radial distance information derived from the interpolated radar data of the golf ball in flight with angular distance information derived from the two dimensional image data of the golf ball in flight to form three dimensional location information of the golf ball in three dimensional space.