A first down indicator assembly includes cart that is rollable along a sideline of an American football field. A pair of laser units is each of the laser units is coupled to the cart. Each of the laser units emits a location beam outwardly onto the American football field. The laser units are spaced 10.0 yards apart from each other thereby facilitating officials to determine when a first down is achieved by a football team. An American football visibly renders the location beam from a respective one of the laser units when a football team achieves the first down. A display unit is coupled to the cart thereby facilitating the display unit to be visible to players on the American football field. The display unit displays a variety of indicia for indicating information relating the American football.

A balancing exercise rod apparatus for working out while walking or jogging includes a grip bar having a left end and a right end. A pair of wheels is coupled to the grip bar. The pair of wheels includes a left wheel and a right wheel rotatably coupled to the left end and the right end of the grip bar, respectively. Each of the wheels has a hub rotatably coupled to the grip bar, a plurality of spokes extending from the hub, and a rim portion. The rim portion has an inner side, an outer side, an interior face, and an exterior face. The plurality of spokes extends from the hub to the interior face. A plurality of wheel weights is coupled to the pair of wheels. The plurality of wheel weights is coupled within the rim portion.

Provided are a golf ball which has a surface that sparkles when exposed to ultraviolet rays even if a naturally derived substance is used as a fluorescent material, and it is environmentally and human friendly, and a resin composition for a cover or a topcoat therefor. A resin composition for a cover or a topcoat of a golf ball of the present invention includes: a resin for a cover or a topcoat; and a plant-derived or alga-derived extract which emits light using an absorbed light as an energy source, as a fluorescent material. In the golf ball of the present invention, the cover or the topcoat is formed by using such a resin composition.

A game set having a flying disc, a goal mount, a target loop configured to attach to the goal mount, the target loop having a loop surface with a solid outer portion that surrounds an open middle portion, the open middle portion having at least one distinct opening, each distinct opening defining a scoring portal, and a score controller having at least one score sensor configured to detect the passage of the flying disk through each scoring portal, a vibration sensor configured to detect the target loop being impacted and wherein the score controller is configured to emit an alert when a sensor is triggered. The score controller may be further comprised of a viewing camera, microphone, game clock, scoreboard, distance verification device, loudspeaker, score buzzer, score indicator light, battery, and wireless transmitter. The score controller may communicate with a game application on a device, enabling “physical virtual” play.

A system and method for playing a pin based game with an impact resistant ball and process of forming an impact resistant ball are provided. The impact resistant ball has an increased resistance to damage caused to a ball by repeated impact with objects such as a game board and game pins thereby decreasing the frequency with which the ball must be replaced. The impact resistant ball also has utility to afford a larger segment of the population the ability to properly grip and throw the impact resistant ball by providing an increased length gripper able to accommodate a greater range of hand sizes. The impact resistant ball has further utility to automatically identify and transmit data including the impact of the ball with the game pins and ball metrics including speed, pressure and weight.

A system for adjusting alignment of a golf club head includes a club shaft having a proximal end and an opposing distal end, with a hosel fitting fixedly secured to the distal end of the club shaft. A neck is rotationally coupled to the hosel fitting at a first end and a club head is coupled to the second end of the neck. The hosel fitting includes a reference line and the neck includes a series of angle index lines. The angle of the club face is adjusted by selectively aligning a singled angle index line with the reference line.

A method can include determining physical characteristics of a trainee, adjusting a target zone based on the physical characteristics, adjusting one or more parameters of a delivery device based on the physical characteristics, projecting an object toward the target zone along a trajectory, and scoring a performance score of the trainee to track the object along a portion of the trajectory. A method can include projecting an object toward a target zone along a trajectory, a trainee attempting to impact the object at an appropriate location with a desired impact location of a sport tool, capturing imagery that contains the object at the appropriate location and the desired impact location of the sport tool, determining horizontal and vertical distances between the desired impact location and the object arriving at the appropriate location, and scoring a performance based on the horizontal and vertical distances.

A method can include projecting one or more objects along one or more pre-determined trajectories toward a target zone, with each having a diameter less than a diameter of a regulation table tennis ball, the trainee attempting to prevent the one or more objects from entering the target zone and scoring the ability of the trainee. A method can include displaying a first video to a trainee that explains setup for a delivery device, setting up the delivery device based on the first video, projecting an object along a pre-determined trajectory toward a target zone proximate the trainee, wherein the object has a diameter that is less than a diameter of a regulation table tennis ball, and scoring an ability of the trainee to interact with the object at the target zone.

A golf training system generally includes a photoluminescent light-reactive surface and a light source that is placed on a golf club. During a training stroke performed over the photoluminescent surface, the light source excites phosphors in the light-reactive surface during a stroke and in doing so creates a transient visible “record” of the precise track the club head makes during the stroke. In some embodiments, the system can include a training ball having a phosphorescent material affixed to or integrated into the surface of the ball so that a light source placed on the golf club excites the phosphorescent material and indicates the point of contact between the golf club and the training ball.

A game set having a flying disc, a goal mount, a target loop configured to attach to the goal mount, the target loop having a loop surface with a solid outer portion that surrounds an open middle portion, the open middle portion having at least one distinct opening, each distinct opening defining a scoring portal, and a score controller having at least one score sensor configured to detect the passage of the flying disk through each scoring portal, a vibration sensor configured to detect the target loop being impacted and wherein the score controller is configured to emit an alert when a sensor is triggered. The score controller may be further comprised of a viewing camera, microphone, game clock, scoreboard, distance verification device, loudspeaker, score buzzer, score indicator light, battery, and wireless transmitter. The score controller may communicate with a game application on a device, enabling “physical virtual” play.