A ball (100) for use in bat and ball games wherein the ball is struck with a bat having an untensioned, rigid ball-striking surface, includes a hollow spherical impact body (112) having a mass of between 10 g and 50 g which enables the use of lightweight bats. The wall of the impact body is of a resiliently compressible material and defines a convexly curved impact zone IB. The ball further includes a flight control assembly (114) including a tail (50) comprising flexible streamers (52), a spacer stem (54) and an anchor fitting (126) for anchoring the spacer stem to the impact body. The configuration of the impact body is such that the impact zone compresses to a minimum compression depth of 12 mm and the impact body bounces to a height of at least 100 cm when the impact body is subjected to a drop test wherein the impact body is dropped onto a test impact surface.

A method can include providing an object having a size smaller than a size of a known regulation object, projecting the object, via a delivery device, toward a trainee, and training the trainee to follow the object. A method can include determining a game parameter of a game trajectory of a sports object that was projected along the game trajectory in a real-time sports event, and based on the game parameters, adapting a delivery device to deliver a training object along a training trajectory that mimics at least a portion of the game trajectory, with the training object being smaller than the sports object.

Ball with line (20) for training purposes where the line (20) is rotatably attached to the ball in a special suspension, the suspension of the line being arranged in a particular cavity (14) arranged in a confined space between the ball's airtight bladder (13) and its outer layer (12). The cavity (14) typically has circular cross section and may include a centre member (21) to which the line is attached and an annular element (24) surrounding this, optionally comprising a battery for providing power to a sensor and optionally to a communication device.

A shaft having an upper end; a first horizontal arm fixedly attached to the upper end of the shaft and a second, semi-rigid, flexible side arm fixedly attached to the first horizontal arm such that the second semi-rigid, flexible side arm bendably extends beyond the terminating end of the first horizontal arm, with a slightly downward slope; and means for releasably attaching to the side of a tennis ball provided on the second, semi-rigid, flexible side arm, such that when the tennis ball is attached to the second semi-rigid, flexible side arm, its slightly downward slope and slight curve provides a visual perception that the tennis ball is traveling on its way down to the trainee, while simultaneously being held in a manner which allows the trainee's racquet to travel up on, through and over the tennis ball, thereby repeatedly and consistently placing the tennis ball within the racquet's sweet-spot, without impeding the trainee's stroke.

A ball return assembly is configured to return a ball to a user. The ball return assembly has a base arranged on a ground surface with a first opening and a second opening. An elastic cord is threaded through the first opening and the second opening. A cord lock is joined to the cord first end, preventing the cord from being pulled from the base. A ball is joined to the cord. A frame is arranged proximate the base. The ball, upon contacting the frame, is pulled by the cord toward the base.

A device including a golf ball that is configured to be operable for golf hitting practice. A cable assembly retains the golf ball during the golf hitting practice. A golf ball attachment eye segment engages the golf ball. A first compression sleeve is configured to join a portion of said cable assembly that is forming the golf ball attachment eye engaged with the golf ball. A cable eye segment is configured to be operable for engaging a stationary object. And a second compression sleeve is configured to join a portion of said cable assembly that is forming said cable eye.

Disclosed herein is an apparatus for facilitating simulating golf play on golf courses. Further, the apparatus comprises a golf mat, a golf ball, an external sensor, a processing device, a storage device, and a communication device. Further, an internal sensor diposed in the golf ball generates internal sensor data based on detecting a striking parameter of a striking of the golf ball. Further, the external sensor generates external sensor data based on detecting a motion parameter of a motion of the golf ball. Further, the processing device analyzes the internal sensor data and the external sensor data, generates a path parameter of a path of the golf ball, and generates a representation of the golf ball and the path in an environment representation of a golf course based on the path parameter and golf course data. Further, the storage device retrieves the golf course data.

A method can include providing an object having a size smaller than a size of a known regulation object, projecting the object, via a delivery device, toward a trainee, and training the trainee to follow the object. A method can include determining a game parameter of a game trajectory of a sports object that was projected along the game trajectory in a real-time sports event, and based on the game parameters, adapting a delivery device to deliver a training object along a training trajectory that mimics at least a portion of the game trajectory, with the training object being smaller than the sports object.

A method can include providing an object having a size smaller than a size of a known regulation object, projecting the object, via a delivery device, toward a trainee, and training the trainee to follow the object. A method can include determining a game parameter of a game trajectory of a sports object that was projected along the game trajectory in a real-time sports event, and based on the game parameters, adapting a delivery device to deliver a training object along a training trajectory that mimics at least a portion of the game trajectory, with the training object being smaller than the sports object.

A method can include projecting an object toward an impact device along a trajectory, receiving the object at a target zone of the impact device, a trainee striking the impact device at an impact zone with a sports tool, and scoring a performance score of the trainee to impact the impact zone at an appropriate time compared to an arrival time of the object at the target zone. A method can include projecting an object toward a target along a trajectory, receiving the object at an actual arrival position at the target, wherein the actual arrival position is either inside a target zone or outside the target zone, and where a trainee is configured to send an indication when the trainee expects the object to arrive inside the target zone, comparing the indication to the actual arrival position, and determining a performance score based on the comparing.